BRO Steam Solutions

9 

Steam Solutions 

www.ecotherm.com

Company profile 

ECOTHERM is the leading brand for turnkey hot water, 

steam and solar systems for hotels, hospitals and 

industry in the Middle East. 

ECOTHERM amazes its customers with “Individual Heat 

Transfer Solutions” for hot water, steam and solar generation. 

The following advantages mark these solutions: 

Individuality 

ECOTHERM realizes extensive turnkey systems as well 

as the production of separate components. Each single 

plant is specifically aligned to the customer’s individual 

requirements. The basis is an own production in Austria 

and a wide product portfolio. 

Premium quality 

All products made of high-class duplex stainless 

steel guarantee a long-life cycle and perfect hygiene. 

ECOTHERM is certified to ISO 9001 : 2008 with all 

required European standards. 

Innovation 

We are always open to the new, we constantly investigate 

new technologies and we develop path-breaking and future-oriented 

products. 

Premium service 

Clients benefit from extensive service at consulting, planning, 

engineering, supervision and training. ECOTHERM 

regularly improves the know-how of its partners and clients 

via selective trainings. 

Efficiency 

The ECOTHERM Group managed by the owner has slim 

decision-making structures. ECOTHERM turnkey solutions 

from one single source and the economical handling 

of energy resources offer an optimal cost-benefit ratio. 

Experience 

With thousands of installations the past 30 years in 

Europe, the Middle East, Asia, North Africa and Central 

America, ECOTHERM has become one of the technology 

and innovation leaders for individual hot water, steam and 

solar solutions on the market. 

Reliability 

ECOTHERM systems are monitored around the clock 

and can be serviced at low cost, quickly and efficiently via 

an advance control panel. Our designed plants have low 

maintenance requirements and are 

totally dependable. 

Sustainability 

ECOTHERM products help our customers to save energy 

and money. We save valuable resources through the use 

of renewable energies. ECOTHERM high-performance 

plants have minimal space requirements and provide 

maximum energy savings. When planning new products 

ECOTHERM engineers take all the qualitative and economic 

principles into account in accordance with ecological 

principles. 

Partnership 

We live in a partnership with all our customers, suppliers 

and employees. This relationship is characterized by 

honesty, commitment, openness, trust and reliability. 

The object is a joint long-term success. 

Internationality 

The international alignment of ECOTHERM with branches 

in Dubai, Kuwait, Mexico, Hungary, India and partners in 

more than 20 countries is the basis for our flexible and 

efficient project implementation that is always on schedule. 

2 ECOTHERM Steam Solutions

Water Sample 

Cooler 

Steam Seperator 

Fuel Burner 

Blow Down 

Cooler 

Flash 

Vessel 

Steam Flow 

Meter 

Heat 

Recovery 

Stainless Steel 

Chimney 

Plant 

Steam Boiler 

Economizer 

Heat 

Recovery 

Steam Header 

Feed 

Water 

Pumps 

Deaerator 

Feed Water 

Tank 

Pressure Reducing Station 

Master Control Panel 

Fresh Water 

Supply 

Water Softener & Chemical Dosing 

Condensate Recovery 

Reverse Osmose 

Clean Steam 

Generator 

Legend 

Steam supply 

Condensate return 

Blow down 

Cold water 

Hot water 

Waste water 

Vent 

Contents 

ECOTHERM Steam Solutions 

Your optimal solution Pages 6 - 7 

Products: 

• Steam Boilers 

• Economizers 

• Chimneys 

• Burners 

• Feed Water Tanks 

• Blown Down Coolers & Flash Vessels 

• Water Treatment 

• Control Panels 

• Condensate Return Station 

• Pressure Reducing Stations 

• Automatic Blown Down Systems 

• Automatic TDS Control Units 

• Level Control for Steam Boilers 

• Valves, instruments & steam ancillaries 

• Steam Flow Metering 

• Feed Water Pumps 

• Steam Headers 

• Steam Separators 

• Sample Coolers 

Pages 7 - 8 

Page 9 

Page 10 

Page 11 

Pages 12 - 13 

Page 14 

Pages 15-16 

Page 17 

Page 18 

Page 18 

Page 19 

Page 19 

Page 19 

Page 20 

Page 20 

Page 20 

Page 21 

Page 21 

Page 21 

Turnkey Solutions: 

• (Pre-)Wiring 

• (Pre-)Piping 

• Pipe Supports 

• Vapour Heat Exchangers 

• ECOTHERM High Capacity Water Heaters 

• High Capacity Clean Steam Generators 

• Smart Steam Generators 

Page 23 

Page 23 

Page 23 

Page 24 

Page 24 

Pages 25 - 26 

Pages 27 - 28 

Advantages 

Pages 29 - 33 

Technical Specifications 

Pages 34 - 54 


3

Your optimal solution 

Your optimal ECOTHERM steam solution 

For steam systems much more components 

are required than for hot water 

systems. The spectrum ranges 

from oil or gas burners over feed 

water tanks, water treatment, clean 

steam generators, condensate recovery 

systems, steam separators up to 

the control panel with a touch panel. 

There fore ECOTHERM already plans 

80 to 90 percent of all details for a system 

in the design stage. This ensures 

that the suggested time schedule really 

works, that the costs for the project 

suit the suggested budget and that the 

desired performance can be achieved 

by the system. ECOTHERM steam 

systems are mainly installed in hotels 

(e. g. for the laundry), in hospitals 

(especially clean steam generators 

for e. g. cleaning the surgical instruments) 

or in industry. 

Chimneys 

High quality stainless steel chimneys 

for industrial applications and 

individual residental buildings. 

Details on page 10. 

Flash 

Vessel 

Steam Header 

Heat 

Recovery 

Steam Boilers 

Blow Down 

Cooler 

High efficiency, fully packaged for 

easy installation, robust long life. 

Details on pages 7 to 8. 

Steam Flow 

Meter 


Chimney 

Water Sample 

Cooler 

Economizer 

Deaerator 

Smart Steam Generators 

Feed Water 

Tank 

High energy efficiency, robust and lowmaintenance 

and easy operation. 


Steam Seperator 

Heat 

Recovery 

Burners 

Fuel Burner 

Plant 

Steam Boiler 

Feed 

Water 

Pumps 

Gas, oil or dual fuel burners with highefficiency 

and approved quality. 


Economizers 

Feed Water Tanks 

Significantly increases the boiler 

efficiency up to 97 percent. 


High quality workmanship to highest 

European standards. 



Your optimal solution 

Control Panels 

Touchscreen, 3D visualization, remote 

access. 


Condensate 

Return Stations 

Fully packaged unit, ready for start-up 


Turnkey Solutions 

ECOTHERM offers complete turnkey 

steam solutions with a huge range of 

additional components as e. g. 

• (Pre-)Piping 

• Pipe supports 

• (Pre-)Wiring 

• Vapour heat exchangers 

• ECOTHERM high capacity water 

heaters 

• High capacity clean steam 

generators 

• Smart Steam Generators 

Pressure Reducing Station 

Clean Steam 

Generator 


This schematic drawing 

shows the components of 

a typical ECOTHERM 

steam system. 


Legend 

Steam supply 

Condensate return 

Blow down 

Cold water 

Hot water 

Waste water 

Vent 

Condensate Recovery 

Fresh Water 

Supply 

Water Softener & Chemical Dosing 

Clean Steam Generators 

Entirely made of high quality stainless 

steel. Compact, skid mounted unit. 


Reverse Osmose 

Blown Down Coolers 

Guarantee a safe waste water 

management. Details on page 14. 

Water Treatment 

In order to prevent the steam system 

against corrosion and scale foundation, 

certain components for the water treatment 

are added to the system as e. g.: 

• Water softener 

• Chemical dosing 

• Water filter 

• Hardness control 

• Reverse osmose systems 



5

Products 

ECOTHERM steam systems consist of high quality 

components. Clean steam generators are made of 

high quality stainless steel. This high capacity products 

are manufactured at the ECOTHERM headquarters 

in Austria. The quality management system 

of ECOTHERM is certified according to ISO 9001 : 

2008 for sizing, design, production and distribution 

of solar, hot water and steam systems as well as of 

pressure vessels and heat exchangers. 

The products are manufactured in high quality 

stainless steel according to the highest European 

standards as e. g. ISO 3834-2 and therefore guarantee 

long life time and perfect hygiene. Our own 

test bench assures the highest quality and reliability. 


Products: Steam boilers 

ESBI Steam Boilers 

Low Capacities 

350 - 5,000 kg/h 

Technical details on page 36 

High Capacities 

1,700 - 20,000 kg/h 

Technical details on page 37 

Efficiency & admissible 

maximum safety valve 

pressure 

• Efficiency of up to 91% and 

up to 95% with economizer 

can be achieved. 

• Standard design pressures 

of 10,13,16 and 20 bar(g) 

are available. 

Higher pressures can be manufactured 

on request. 

Design, quality & construction 

The ECOTHERM high output steam 

boilers are constructed from high quality 

steel and are distinguished by their 

solid, robust and flexible design. The 

boiler combines ease of operation and 

maintenance with optimal efficiency. 

The boiler is designed with all necessary 

inspection doors and is constructed 

for gas or oil firing. Construction and 

production is according to EN12593, 

the Pressure Equipment Directive 

97/23/EG and CE marked. An independent 

authorized institution carries 

out quality approval at our factory. 

The ISO 9001 certification and internal 

quality control ensures excellent 

performance and longevity of service. 

The client receives an economical, 

environmentally friendly compact unit, 

supplied ready for installation. 

ESBI steam boiler 

The ESBI is a three-pass flame tube/ 

flue gas tube boiler with an inner fully 

water-cooled reversal chamber with 

finned tube wall. The boiler consists 

of a cylindrical shell, two endplates, 

gusset stay supports, flame tube, gas 

reversal chamber with water cooled 

finned tube wall and two tube bank 

gas passes with low gas side resistance. 

The boiler is completely electrically 

welded and provided with all 

required inspection openings. The 

spacious flame tube with low thermal 

heat release results in excellent 

combustion and low emissions. Large 

water content and steam space provides 

steady state operation. 

Thermal insulation 

The boiler is fully insulated with 

120mm mineral wool insulation. The 

casing is made of 1mm thick stucco 

aluminum plate with neatly trimmed 

connections and cut-outs. The 

flue gas collector is also thermally 

insulated. 

Control panel 

The control panel is equipped with the 

required controls and indicators for 

control and supervision of the boiler 

and burner. Control switches, indicator 

lights and alarm signals are provided. 

The control panel is supplied to 

match the burner to be used. 


7

Products: Steam boilers 

ESBH Steam Boilers 

Low Capacities 

500 - 4,000 kg/h 

Technical details on pages 40 - 41 

High Capacities 

2,000 - 20,000 kg/h 

Technical details on pages 42 - 46 

Admissible maximum 

safety valve pressure 

• Standard pressures: 

10, 13 and 16 bar(g) 

• Savety valve pressures: 

11 and 14 bar(g) 

Higher pressures on request. 

The ECOTHERM high output steam 

boilers are made of high quality steel 

and are distinguished by their solid, 

robust and flexible construction, particularly 

by their operational ease, their 

easy maintenance and an optimal efficiency. 

The client receives an economical, 

environment friendly compact 

unit, ready for installation. The boilers 

are constructed for oil or gas firing. 

Boiler type ESBH 

The type ESBH classical 3 pass flame 

tube flue gas tube boiler consists of a 

cylindric shell, the two head plates, the 

flame tube including the back flue gas 

turning chamber with water cooled finned 

tube wall, the two flue gas passes 

and the fitting tube, placed either on 

the right (standard) or on the left. The 

boiler door is insulated and flue gas 

proof for burner mounting. The boiler 

is completely electrically welded and 

provided with all required inspection 

openings. 

The spacious flame tube with low 

thermal charges results in an excellent 

combustion and reduced emissions. 

The large water content secures 

an even burner running time and thus 

reduces the number of boiler starts. 

Thermal insulation 

The boiler is fully insulated with 

mineral wool insulation. The casing is 

made of structured aluminium plate. 

Fittings and out-cuts are properly rimmed. 

The flue gas collector is thermal 

insulated. 

High efficiency 

Due to the above technical facts an 

efficiency of up to 90%, respectively 

up to 95% with economizer, can be 

achieved with minimal space requirements. 

Thus continuos working costs 

are kept low. The sources of energy 

are used more efficiently and ECO- 

THERM spares the environment. 

Construction guiding, 

quality approval 

The boiler is designed with all necessary 

inspection doors. Construction 

and production is done according 

to the European Pressure Directive 

Equipment (PED) 97/23/EC, with CEconformity. 

The quality approval at ISO 

9001:2000 certification and the quality 

approval at our factory with our 

ECOTHERM quality performance 

department with works certificate guarantees 

the highest product quality. 

For installation and operation of the 

boiler the local laws and norms are to 

be respected. 


Products: Economizers 

Economizers 

Potential of savings for an 

economizer for a steam boiler 

• Boiler efficiency without 

ECO: 88% - 91% 

• Boiler efficiency with ECO: 

94% - 97% 

A boiler economizer is a heat exchanger 

device that captures the “lost or waste 

heat” from the boiler's hot stack gas 

which could not be used inside the boiler 

furnace (due to physical reasons; 

i. e. boiler water temperature). The economizer 

typically transfers this waste 

heat to the boiler's feed water or return 

water circuit, but it can also be used to 

heat up domestic water or other process 

fluids. Capturing this normally lost 

heat reduces the overall fuel requirements 

for the boiler. Less fuel equates 

to money saved as well as fewer emissions 

- since the boiler now operates 

at a higher efficiency. This is possible 

because the boiler feed water or return 

water is pre-heated by the economizer. 

Therefore the boiler's main heating circuit 

does not need to provide as much 

heat to produce a given output quantity 

of steam or hot water. Again fuel savings 

are the result. Boiler economizer 

improve a boiler's efficiency by extracting 

heat from the gases discharged. 

Steam boilers 

For steam boilers, the economizer is 

a typically heat exchanger through 

which the feed water is pumped. The 

flue gases, having passed through the 

main boiler area will still be hot. 

The energy in these flue gases is 

used to improve the thermal efficiency 

of the boiler. 

Feed water 

The feed water thus arrives in the 

boiler at a higher temperature, than 

it would be the case if no economizer 

was fitted. Less energy is then 

required to raise the steam. Alternatively, 

if the same quantity of energy is 

supplied, then more steam is raised. 

The result is a higher efficiency. In 

broad terms a 10°C increase in feed 

water temperature will give an efficiency 

improvement of about 2%. 

Shell boilers 

Optimizing energy consumption 

The heat output recovery from smoke 

gas is limited. At smoke gases from oil 

or gas firing plants there’s a steam content 

of 100 to 120 g/kg; the condensing 

point of this water content is situated at 

57°C. For heating up the feed water by 

an economizer it’s only possible to use 

the sensible heat (dry heat) because 

the feed water has to have a minimum 

temperature of 90°C - so it’s not possible 

to condense the smoke gases and 

to use the condensing energy too. 

FEED WATER TANK 

CHIMNEY 

ECONOMIZER 

BY-PASS 

STEAM BOILER 

On shell boilers the economizer is 

either installed directly at the boiler 

or - also possible - installed as a separate 

unit. The smoke gas coming 

from the last boiler smoke gas pass 

is guided into the economizer. 

Note: The smoke gas temperature 

leaving a normal boiler is about 

50°C to 80°C higher (full load 

and clean heating surfaces) then 

the saturated steam temperature. 

The minimum allowed smoke gas 

temperature (behind economizer) 

depends - mainly - to chimney design. 

For steam boilers operated at 10 

bar(g) the temperature levels which 

could be used at the economizer 

are about 250°C down to 140°C 

(smoke gas out from boiler compared 

to smoke gas out from eco) 

- which results in a fuel saving of 

about 5% comparing to boilers without 

economizer. The feed water 

temperature will rise from 105°C to 

round 135°C in that case. 


9

Products: Chimneys 

Chimneys 

CE-certified, double-wall, grimecombustion-resistant 

insulated 

chimney - respectively exhaust gas 

system - made of stainless steel by 

Jeremias, Germany. 

The chimney respectively exhaust gas 

plant is made of industrial, double-wall 

stainless steel system elements. It is 

used as an outer wall chimney as a 

standard but it is also suitable for assembling 

in buildings, as long as the 

system is floor-overlapping. But in this 

case the system has to be covered by 

a cored hole (which has to fulfill the 

fire protection requirements). This 

chimney can also be used for roof heating 

and for all connection piping. 

The exhaust gas plant is made of 

high-alloyed, austenitic stainless steel 

(AISI 316Ti). Its longitudinal seams 

are gas-shielded, arc welded and passivated 

via WIG. 

The production is externally controlled 

by an independent testing institute. 

The compliance of constant goods is 

checked by an internal control. 

The inner shell is made of 0.6-1.0 mm 

thick stainless steel (AISI 316Ti). The 

outer shell has got the same thickness 

at the stainless steel material number 

AISI 304. This material thickness offers 

perfect safeness against buckling 

and folding. The single elements are 

connected by plug-in sockets with 

overlying clamp fittings against scrolling 

and slipping. 

The inner shell of the system is able 

to extend freely as because of the 

construction of the single elements 

the inner shell cannot slip and consequently 

it remains centered without 

fixing on the outer shell. 

Thermal bridges between inner and 

outer shell are avoided because of 

this construction. The special mineral 

insulation (thickness 32mm) between 

inner and outer shell is high-temperature 

resistant and incombustible (material 

class A1 according to DIN 4102). 

Specifications 

• Thermal resistance class 

of the system: at reference 

temperature = 0.501 m²/K/W 

• Visible surface high-glossed 

(standard). 

• Possible designer surface: 

beamless, painted or grinded, 

as well as in copper 

• Inner diameter area of 

80 - 1,000 mm 

• Freestanding end above 

last wall holder: 3 m 

(up to DN 600) 

• Bigger diameters on request 


Products: Burners 

Gas, Oil and Dual Fuel Burners 

Gas burners 

Gas burners of ECOTHERM steam 

systems have been especially 

designed for industrial capacity 

ranges. The burners are noteworthy 

for their large capacity and 

operational ranges and numerous 

other interesting details: 

• Compliance with the most stringent directives and emission limits 

• Large capacity and operational ranges 

• Stable fan reference line - good combustion behaviour 

• Quiet operation 

• Burner housing can be hinged open 

• Easy to install, set and service 

• Automatic air shut off on burner shutdown 

Oil burners 

Oil burners are of the fully automatic 

pressure atomizing type. Their design 

has been carefully considered down 

to the smallest detail and has been 

proved successfully over and over 

again. They meet all the demands for 

safety, reliability and low cost servicing. 

The oil burners are type 

tested and have the following 

features: 

• Larger range of application 

• Automatic sequence of operations 

• Stable fan characteristics - good combustion results 

• Air damper closed on burner shutdown 


• Complete pre-wired integral switchgear 

• Hinged burner casing 

• Combustion head can be withdrawn when the burner is hinged open 

• The design of the burner makes installation, adjustment and servicing easy 

Dual fuel burners gas/oil 

Dual fuel burners satisfy the requirements 

for operational safety, easy 

installation, and reliability. They operate 

economically and environmentally 

friendly. The oil side of the dual 

fuel burners comply with DIN EN 267. 

The gas burners and the gas side of 

dual fuel burners comply with DIN-EN 

676 and the gas appliance guidelines 

(90/396/EEC) and are EG type tested. 

• Large capacity and range of application 

• Automatic sequence of operations 

• Combustion chamber pre-purge 

• Safe flame monitoring 

• Stable fan characteristics - good combustion results 


• Hinged burner casing 

• Simple installation, adjustment and servicing 

• Easily converted to other types of gas 

• Fuel change by manual or automatic change over. 

• Automatic air closure on burner shutdown 


11

Products: Feed Water Tanks 

Feed Water Tanks & Deaerators 

Description 

The feedwater deaerating plant, consisting of the feedwater 

tank and the deaerator, removes dissolved gases such as 

oxygen, carbon dioxide and other non-condensable gases 

from boiler feedwater and makeup water. 

For the operation of steam boilers with high thermal load 

on the heating surfaces boiler feedwater must be treated 

and conditioned. 

The boiler feedwater must be free of hardening constituents 

in order to prevent the formation of scale on the boiler heating 

surfaces. The presence of dissolved oxygen and carbon 

dioxide causes severe corrosion of metal boiler parts. The 

feedwater deaerating plant is custom designed for each 

application and meets essential thermo dynamic requirements 

to achieve optimal performance. 

Technical details on pages 48 - 49. 

Benefits: 

• Sizes from 200 to 20,000 liters 

• Pressure resistant 

• Material: mild steel, stainless steel 

AISI 304 / 316 / Duplex SS 

• Completely preassembled unit 

• All valves, pumps, instruments are 

custom-designed according to 

steam boiler system 

Function 

The make-up water and return condensate enters the 

deaerator that is fitted with a series of tray compartments 

to provide maximum spilling. Heating steam is fed into the 

deaerator from below. The make-up water and return condensate 

are deaerated and flow directly into the feedwater 

tank, which is flanged to the deaerator. The feedwater tank, 

which is heated by means of a steam injector, heats up the 

feedwater to 105°C. 

The solubility of gases in water can be described by Henry 

Dalton‘s law of absorption which states that gas solubility in 

a solution decreases as the gas partial pressure above the 

solution decreases. This means that the gas solubility in a 

solution decreases as the temperature of the solution rises 

and approaches saturation temperature. 

The make-up water and return condensate is distributed 

over the series of trays and comes in direct contact with 

the heating steam. This process reduces the solubility of 

oxygen and carbon dioxide and removes these gases from 

the feedwater. The released gases work their way to the 

top of the vessel where they are vented from the deaerator 

via the vent line. 

A temperature-controlled heating system for warming up a 

cold feedwater tank is provided. 

Due to the fact that the feedwater temperature is above 

100°C enough net positive suction head (NPSH) is required 

to ensure that the weight of the column of water in the line 

exerts enough pressure at the feed water pump suction to 

prevent the formation of steam bubbles and therefore the 

water from cavitating. Therefore a support construction is 

required. 


Products: Feed Water Tanks 

PRESSURIZED FEED WATER TANK 

FLASH STEAM HEAT 

RECOVERY (OPTIONAL) 

MAKE-UP WATER 

VENT PIPE OUT 

OF BUILDING 

OVERFLOW TO DRAIN 

15 

12 

14 

2 

11 


DISCHARGING AIR 

AND OXYGEN TO 

VENT out of building 

CONDENSATE RETURN 

1 

8 

10 

DEGASIFICATION 

PRESSURE 

REGULATION 

16 

8 


9 

DRAIN 

17 

PRESSURE REDUCING STATION 

(OPTIONAL) 

FROM STEAM 

BOILER 

FEED WATER 

RETURN (OPTIONAL) 

13 

OPERATING PRESSURE 

0.2 - 0.3 bar (105°C) 

TS 

TI 

LEVEL 

CONTROL 

3 

TS 

7 

PRE-HEATING 

TEMPERATURE 

REGULATION 

4 DRAIN BOILER 

5 SAMPLE 

FEED 

WATER 

6 

WATER 

1 Feed Water Tank: preparing feed water for steam 

boilers, collecting condensate, adding chemicals, 

pre-heating of feed water. 

2 Pressurized Deaerator: removing oxygen and 

other gases, injection for fresh softened water, 

pressure control 

3 Level Control: to keep a constant water level in 

the tank a level control system is required. Also 

protection against low and high water is installed. 

4 Drain: for draining of the tank 

5 Boiler feed water: feed water supply connection to 

feed water pumps and boilers 

6 Sample water: connection to feed water sample 

cooler. Water quality needs to be checked daily 

7 Pre-heating of feed water to protect the boiler 

against too high temperature differences and heat 

tensions, feed water needs to be pre-heated by 

steam injection. 

8 Condensate return: collecting the condensate 

from different consumers, e. g. steam pipe draining 

points, heat exchangers, laundry machines. 

9 Pressure reducing station to provide exact 

needed pressure for pre-heating and degasification, 

steam pressure can be adjusted by pressure 

reducing station 

10 Degasification pressure regulation for removal 

of different gases from the feed water, a steam 

injection in deaerator is necessary. This injection 

should keep a constant tank pressure of about 

0.3 bar(g) for optimal degasification 

11 Discharging air and oxygen vent (out of 

building) removing port of waste gases. also 

a vapour heat exchanger (flash steam) can be 

installed on this port. (17) 

12 Safety valve high pressure protection valve 

opens when pressure increases. 

13 Feed water return (optional): in big boiler systems 

a 3-way valve control for feeding of steam boilers 

is proposed. In case of low load feed water will be 

returned to feed tank. 

14 Vacuum breaker: protection against negative 

pressure 

15 Overflow: protection against high water 

16 Manhole / handhole: will be provided for easy 

inspection and cleaning 

17 Flash Steam (Vapour): heat exchanger uses the 

“waste energy” to heat up make-up water before 

entering the deaerator 


13

Products: Blow Down Coolers 

Blow Down Coolers & Flash Vessels 

Steam boilers must be blown down to remove contaminants, 

as a too high level will cause foaming and scaling 

of the boiler tubes. A build-up of solids at the bottom of the 

boiler could also have serious consequences. Most modern 

boilers are fitted with TDS controls to remove dissolved 

solids, and a blowdown valve that is opened at regular 

intervals to remove precipitated solids. 

Because the bottom blowdown valve is opened just a few 

seconds per day, it is not economical to recover the heat, 

yet water cannot be discharged to drain unless it is cool. 

Nowadays, blowdown vessels have replaced blowdown 

pits as the recommended way of cooling this water. 

Blowdown from TDS controls should ideally be connected 

to a heat recovery system inside a flash vessel. Where 

this is not practical, TDS blowdown may also be piped to a 

blowdown vessel. 

User benefits: 

• Three inlets as standard with dedicated bottom blowdown 

and TDS connection. 

• Fully complies with the requirements of the European 

Pressure Equipment Directive 97/23/EC. 

• Complete systems normally readily available from 

stock. 

• Quick and easy to install and maintain. 

For flash vessels an internal heat 

recovery system is provided. 

DISCHARGING AIR 

AND OXYGEN TO 

VENT out of building 

Important factors for sizing of blown 

down coolers & flash vessels: 

• Boiler pressure 

• Number of boilers 

• Duration of blow down 

• Blown down line size 

• Length of blow down line between the boiler and 

the blow down vessel 

• Blow down regime 

DRAIN 


Products: Water Treatment 

Water Softener 

Water filter 

Application 

Automatic volume-controlled softener producing soft water 

by means of ion-exchange. Particularly suitable in case 

of unsteady soft water consumption. Not recommended in 

case of fluctuating raw water hardness. 

Design 

• Ion-exchange tank made of glass-fibre reinforced 

plastic with PE 

• Inliner, filled with ion exchange resin on a layer of 

supporting gravel, 

• Brine tank with salt tray, supporting body, standpipe 

and brine valve and plastic cover, 

• Hose connecting the central distribution valve 

• Adapter with second ion-exchange vessel, 

• Central distribution valve made of red brass alloy, the 

controller and turbine water meter mounted on its top 

Chemical Dosing 

Technical details on page 50. 

Controller 

• Electrical connection 230 V ± 10 %, 50 - 60 Hz 

• Electricity supply for electronics and motored drive 

via adapter 230 V / 12 V (AC) 

• Energy consumption max. 10 VAC 

• Parameter storage in case of power failure: 

infinitely long 

• Programming the regeneration initiation: 

- amount (in litre or m³) 

- interval (in days) beginning with the end of the last 

regeneration 

- initiation time (for time and volume controlled 

operation) 

Chemical Dosing 

Water filter 

Hardness Control 

The chemical dosing is used to 

control the dosage of oxygen 

binder, prosphat and sulfite in 

the feed water of steam generators. 

The system basically consists 

of a solenoid diaphragm pump, 

mounted on a dosing tank for 

storage of the chemical dosage. 

The plant is individually designed 

according to the defined boiler 

parameters and is delivered fully 

pre-assembled. 

The water filter is used for the 

coarse filtration of fresh water 

and is mounted prior to entering 

the water treatment system. 

The size is determined by the 

required amount of fresh water, 

the characteristics of the fresh 

water and the size of the water 

softening plant. 

For the ease of cleaning an integral 

backwashing system of the 

filter is used. 

For automatic control of the 

water hardness for larger systems 

often a self-controlled water 

hardness monitoring unit is 

used. 

Thus, the steam system is always 

perfectly protected against 

too hard water. 

Alternatively, manual water test 

kits can be used, which require a 

continuous measurement of the 

water quality by the operator. 


15

Products: Water Treatment 

Reverse Osmose Systems 

The plant consist of: 

• High pressure membranes mounted on a 

stainless steel base frame 

• Checkvalve feedwater 

• Checkvalve cleansystem 

• Pressure switch as dry-run-protection 

• High pressure pump 

• Polysulfon/polyamid-membrane 

• Pressure gauges 

• Concentrate-, accumulation- and backflowvalve 

made of stainless-steel 

• Flowmeter permeate, concentrate and 

backflow 

• Control system with full automatic 

monitoring 

• Conductivity meter, digital display, operating 

hour meter 

• Adjustable limit value and alarm contact for 

low pressure and conductivity 

• Connection for niveau control, adjustable 

pressure- and interval flushing 

• Storage tanks made of stainless steel or 

plastic 

Reverse Osmosis is a process that is used to remove a 

wide range of salts to provide water of a high purity. Osmosis 

is a natural process involving fluid flow across a semipermeable 

membrane barrier. It is the process by which 

nutrients feed the cells in our bodies and how water gets to 

the leaves at the top of trees. Reverse Osmosis systems, 

in their basic form, consist of a pressure pump, housing 

and the membrane. Water is forced into the housing under 

pressure and the pure water (or permeate) is collected and 

passed to service. 

Reject water (or concentrate) is collected from another outlet 

and routed to drain, with a portion of the concentrated 

water recycled back to the inlet of the pump. This means 

that the portion of water sent to drain is kept to a minimum. 

The controller used on the RO system constantly monitors 

the quality of the permeate water and is also linked with 

safety controls on the system. 

RO plants must be supplied with softened, de-chlorinated 

or de-chlorinated anti scalent dosed water. A duplex softener 

is recommended for continuous operation. 

The size of the RO and choice of membrane will be determined 

by the permeate quantity required, feed water salinity 

and permeate quality expected. Low energy membranes 

allow the units to run at pressures around 10 to 13bar, and 

as such the pressure booster pumps required to generate 

the pure water are smaller, and the power consumption is 

reduced significantly. 

Additional recommended is also a storage tank which is 

used for reception of the pure-water. 

The size of this tank / these tanks should be in coordination 

with minimum and maximum RO water demand to ensure 

constant operation of the RO system. 


Products: Control Panels 

Control Panels 

Description 

The ECOTHERM control panels are all-in-one panels. 

They unify control and HMI in one compact 

unit. In the control cabinet, space is saved and 

the amount of wiring is reduced. Different processor 

variations and display sizes open a diversity 

of configuration possibilities. The user therefore 

acquires economic automation hardware. Decentralized 

solutions are simple to implement through 

the integrated VARAN interface. The software also 

follows the integration concept and simplifies programming. 

The TFT color display with touch screen 

provides high operating comfort for visualization. 


The purpose of the master control panel is to organize 

the equipment of the whole boiler plan room. 

Each component with need of electrical supply is 

connected to this control panel and its actual operation 

mode is shown on a visual 2D/3D mimic diagram. 

Interfaces for BMS 

There exist several interfaces with existing BMS 

(building management systems) in order to 

share and/or transfer process data: RS232, CAN 

bus, ETHERNET and a USB port at the front side 

of the control panel. 

Control panels are individually and project-specificmanufactured 

by ECOTHERM. 

Main tasks: 

• Timed automatic changeover of the boilers 

• Automatic changeover of the boilers in case of failure 

cut out 

• Automatic start of 2nd boiler in case of high demand 

• Automatic changeover to standby pump in case of 

pump failure 

• Timed automatic run of standby pump - to avoid 

pump-block 

• On/Off switch for all plant room components 

• Operation/failure indication of main components on 

mimic diagram 

• BMS connection for failure signal 

• Remote control 

• Integrated panel cooling device 

• Custom designed hard- and software 

Highlights 

• Scalable: the right CPU for any requirement 

• Integrated: application software compatibility 

• Compact: space-saving installation in the 

control cabinet 

• Simple: one engineering tool for any task 


17

Products: Condensate Return Station & Pressure Reducing Stations 

Condensate Return Stations 

Description 

The condensate recovery units are designed to handle hot 

condensate, which is commonly returned for use as boiler 

feedwater. They can handle high quantities at 98°C with 

pump delivery heads up to 30 - 35 meters. A unit comprises 

three main parts - receiver, pump/pumps and control panel. 

Standards 

This product fully complies with the requirements of the 

European Machinery Directive 98/37/EC, European Low 

Voltage Directive 72 / 73 / EEC and European Electromagnetic 

Compatibility Devices Directive 89/336/ EEC. 

This product is not a pressurized vessel and therefore 

does not need to comply with the European Pressure 

Directive 97/23/EC. 

• Receivers are manufactured of mild steel or SS 

304/316. All sizes are fitted with adequately sized vent, 

overflow, drain and inlet connections flanged to PN16 or 

screwed. A water level gauge and control is provided. 

• Pumps are designed for operation under conditions of 

low NPSH to handle hot condensate with the minimum 

of flooded suction. They are directly coupled to motors 

having class F insulation (class B temperature rise) and 

motor enclosure rating IP54 minimum. 

• Control: Receivers are fitted with solid state level 

control’s which provides on / off cascade pump operation. 

The control panel incorporates electrical equipment 

suitable for 400 volt, 3 phase, 50 Hz, 4 wire supply. 

Control equipment is installed in a pre-wired IP54 rated 

metal enclosure. Connections for BMS interface are 

provided to monitor pump run or tripped condition. 

• Pump fitting: The motor and pumps are mounted 

under the receiver with over size suction inlet pipework 

and isolation valves. The pump discharge outlet is fitted 

with a non return valve and a pressure gauge. 


Pressure Reducing Stations 

It is more efficient and economic to 

produce steam at high pressures 

ready for delivery through the distribution 

system. This may mean that the 

pressure needs to be reduced prior to 

the point of use or for different parts 

of the system. A reliable method of 

providing pressure reduction is to use 

a pilot operated pressure reducing 

valve station. 

Every pressure reducing station is 

custom designed according to 

required steam flows and pressures. 


Products: Blow Down Systems, Control Units, Steam Boilers 

Automatic Blow Down Systems 

The automatic boiler blow down 

system allows the built up of sludge in 

the bottom of the boiler to be flushed 

regulary by a timer controller which 

cyclically opens a pneumatically 

actuated blow down valve. Blow down 

interval and duration are to be set 

by the user according to the water 

characteristics. The system avoids 

wasted heat and repetition or 

omission which occurs with manual 

blow down. 

Blow Down 

Valve 

Blow Down 

Vessel 

Automatic TDS Control Units 

Sensor Tip with 

Conductivity Probe 

The TDS automatic control system 

limits the level of dissolved salts and 

minerals contained in the boiler water 

to the allowed level, which avoids 

carry over due to excessively high TDS 

levels and minimizing the amount of 

blowdown required. 

The system continuously measures, 

just below the water surface level, 

the waters electrical conductivity and 

compares with the set point. If the 

measurement is higher the TDS valve 

is opened until the measured value 

drops below the set point. 

Blow Down 

Control Valve 

Level Control for Steam Boilers 

To control and to keep a constant water 

level in a boiler, a level control is 

used, which gives a signal to the controler 

to switch on/off the feed water 

pump. 

Essential are also level safety devices 

as low and high level cut off systems 

and gives alarms. 

Low level systems consisting of two 

independent level probes connected 

to two distinct level relays. They provide 

a visual and acoustic alarm in 

case the water level falls below a preset 

value and permanently stops the 

boiler, which only is able to operate 

again after a manual reset. 

At a high level system there is also 

an acoustic and visual alarm in case 

the boiler gets over flooded. Then the 

boiler feed water pump is stoped until 

the water level returns to the normal 

condition. 

Feedwater 

Pump 

Conductivity 

Probe 


19

Products: Steam Accessories 

Valves, instruments & steam accessories 

Whether shut off valves, pressure 

regulation valves, steam traps, 

air vents, safety valves, measuring 

devices or gauges are required 

- ECOTHERM can tailor your 

selected equipment to your specific 

requirements. 

In coorporation with well-known and 

leading suppliers for steam equipment 

ECOTHERM can supply the parts you 

need for your system. 

Steam Flow Metering 

For the universal measurement of the 

volume/mass flow of gases, steam 

and liquids an individually selected 

flow meter can be used. 

Maximum fluid temperature ranges 

from –200°C up to +400°C, and pressure 

ratings up to PN250 are possible. 

There is also no maintenance because 

no moving parts are required. 

Trough the inbuilt flow measurement 

computer the software initial settings 

save time and costs. 

The high resistance to vibrations, 

temperature shocks and water hammer 

makes the flow meter very robust. 

Feed Water Pumps 

A feed water pump is considered to 

guarantee continuous feed water flow 

to the steam boilers. 

In case of fault of the feed water 

pump, a second reserve pump is 

supplied, installed in parallel to the 

operating one. 

For the protection of the pumps, low 

water control in feed water tank and 

strainers are installed. 

For easy maintenance and servicing 

each pump can be removed by 

closing the shut off valve before and 

after each pump. 

To guarantee non cavidation on the 

feed water pump impeller, every pump 

is individually designed according to 

the steam plant specification. 


Products: Steam Headers, Separators, Sample Coolers 

Steam Headers 

ECOTHERM steam headers are 

individually designed according 

to the maximum boiler load. 

Any pipe connection and steam 

distribution can be considered in 

design stage. Every steam header is 

equiped with one or two relay points 

according to the size of the header. All 

headers are manufactured according 

to European pressure directive (PED). 

Steam Separators 

Sample Coolers 

The ECOTHERM steam separator 

provides the total 

solution for all pipelines carrying 

steam, air or gas where water droplets 

are in suspension. 

The purpose of steam separators is 

to collect small droplets of water and 

separate them from the steam in the 

pipes. 

The ECOTHERM baffle type separator 

is designed to achieve this separation 

by having an internal volume many 

times greater than the inlet pipework. 

The flow velocity of the steam, air 

or gas is significantly reduced as it 

enters the body. The relatively heavy 

water droplets impact on the internal 

baffles and are then directed to the 

separator drain connection and removed 

from the system using either a 

steam trap, or when used on air or gas 

distribution system, a liquid drainer. 

The ECOTHERM baffle type separator 

is a highly efficient product, operating 

over a wide velocity range, leading to 

improved system performance. 


ECOTHERM sample coolers are used 

to take samples of water or steam from 

boilers at high temperature and pressure. 

The counter-current flow through 

the shell and coil condenses the steam 

and cools hot fluids efficiently to enable 

safe sampling. When hot pressurized 

liquids are being cooled the sample 

cooler prevents “flashing-off” which 

can be dangerous and will result in an 

inaccurate sample. By utilising corrosion 

resistant materials for the cooler, 

contamination is minimized, and 

service life maximized. 

Clear results 

The boiler and feed water has to be 

analyzed daily. The sample cooler 

helps to cool the hot boiler and feed 

water down to a safe temperature. 

Only cooled samples will give clear 

results. 

Description 

The hot water from boiler and feed 

water tank is conducted through a 

stainless steel cooling serpent. This 

serpent is girdled with cold water in a 

small stainless steel vessel. 



21

www.ecotherm.com 

Individual Turnkey Steam Solutions 

Individual Turnkey Steam Solutions 

Steam systems are complex and individual. 

On the one hand a lot of different 

components have to be used. 

All these components need to be optimally 

coordinated with each other 

to ensure functionality and perfect 

efficiency right from day one. On the 

other hand steam systems operate 

with high pressures. Thus a failure 

can really be very dangerous for the 

staff operating the system as well as 

for the complete building. Therefore 

ECOTHERM offers complete individual 

turnkey solutions. The services 

range from design, 3D visualization, 

project management, over manufacture, 

pre-assembly, pre-wiring 

and testing to shipping, commissioning, 

supervision and maintenance. 

Experienced ECOTHERM engineers 

ensure that your system operates 

stable, save, reaches the desired output 

and they train your staff how to 

monitor and control the most important 

parameters of the system. 

Premium quality of the products and 

premium service during the whole project 

is the minimum you should claim 

for your individual steam system. 

Find the products and services 

included in an ECOTHERM turnkey 

system on the following pages. 

Hot Water, Steam and Solar Systems 

2 Turnkey Solutions 

Find more information in our 

brochure “Turnkey Solutions”. 


Products: Wiring, Piping 

(Pre-)Wiring 

Turnkey system from ECOTHERM 

meet highest quality demands. Therefore 

the system is pre-assembled 

and pre-wired in the headquarters in 

Austria. The complete system is fully 

tested and approved according to 

European standards. 

After shipping the pre-wired components 

can be installed very quickly. 

Small systems usually can go into 

operation within a couple of days. 

(Pre-)Piping 

Small systems are delivered including 

pre-piping as a standard. For larger 

turnkey systems ECOTHERM offers 

the option to individually manufacture 

all necessary pipes, to pre-assemble 

and test the complete system including 

the piping in the production facility 

in Austria and then to ship the piping 

in units which can easily be mounted 

at construction site. The complete 

piping is 3d visualized with CAD 

design prior to manufacture. The 

welding is done accordining to 

ISO 3834-2 : 2005 certification. 

Pipe Supports 

Pipe shoes and supports from Sikla 

in Austria have become the widely 

recognized “state-of-the-art” in plant 

engineering’s pipe installations. A modular 

kit gives all the freedom at the 

installation in the plant room. You will 

capitalize on simplified stock logistics. 

Through the combination of base 

unit (skid) with a set, only one type 

is stocked and the variations can instantly 

be generated depending on 

demand. All pipe supports and pipe 

shoes have a safety-relevant function 

within an operating plant. 


23

High Capacity Clean Steam Generators 

Clean steam generators are used wherever plant steam, 

generated in fired steam boilers is not suitable. Due to the 

necessity of chemical dosing and the black material of the 

fired steam boilers, plant steam is not applicable for hygienic 

purposes. The ECOTHERM clean steam generator is 

entirely made of stainless steel to suit hygienic purposes 

like sterilizer units in hospitals or cleaning the stainless 

steel pipes of beverage & food industries. It is a compact, 

skid mounted unit ready for easy installation at site. 

Standard equipment 

• Clean Steam vessel made of AISI 316 Ti or duplex 

stainless steel 

• Pressure / temperature controlled 

• Steam trap set with ball float valve 

• Centrifugal feed water pump 

• Fully automatically control panel 

• Blow down vessel, stainless steel 

• Sample cooler, stainless steel 

• Safety and control utilities 

• Design and manufacturing according to PED 97/23/EC 

Capacities from 250 - 4,000 kg/h as a 

standard. Higher capacities on request. 

Steam generation: 

• by heat exchanger (plant steam / clean steam) 

• by electric heating bundle 

Optional equipment 

• with Steam Flow meter 

• with PRV-unit 

• with steam header 

Applications: 

• Sterilizers for healthcare 

• Sterilize in place (SIP) for 

food and beverages 

• Direct injection into the product for 

pharmaceuticals 

• Clean room humidification for 

biotechnology 

• Operating environments for 

electronics 

• Laboratories for brewing 

• Humidifiers 

Description: 

The clean steam is generated by plant steam or by electrical 

energy. The clean steam generator is loaded with softened 

and heated water (without lime, PH-neutral conductivity, 

0–30 μS). This water will become clean steam. The level 

control guarantees an optimized level of water and causes 

an alarm if the water level falls below the alarm switch. 

The pressure of the clean steam is controlled according to 

the requirement by regulation valve. 

A conductivity measuring unit regulates the level of minerals 

in the water to protect the vessel. 

To avoid any dirt inside the clean steam generator and to 

guarantee a high quality of water and a long life of the vessel 

is installed a blow down valve which is controlled automatically. 

The blow down cooler cools the hot water of the blow down 

to 40°C to drain the water and to avoid burnings. 

The clean steam generators can be manufactured completely 

pre-piped and wired, mounted on a stainless steel 

support frame. 



Products: Clean Steam Generators 

PLANT STEAM 

RO WATER 

SUPPLY 

7 

OVERFLOW TO DRAIN 


DISCHARGING AIR AND 

OXYGEN TO VENT out of 

building 

6 

9 


14 

PRE-HEATING 

TEMPERATURE 

REGULATION 

8 

VENT PIPE OUT 

OF BUILDING 

5 

STEAM 

SUPPLY 

4 

PRESSURE CONTROL 

PT P PL 

LS 

SOFTENED WATER 

SUPPLY 

OPERATING PRESSURE 

0 bar (95°C) 

DRAIN 

12 

TS 

TI 

MASTER CONTROL 

PANEL 

LEVEL 

CONTROL 

BOILER 

FEED 

WATER 

13 

10 

WATER 

SAMPLE 

COOLER 

TS 

11 

16 

CLEAN STEAM GENERATOR 

TI 

HIGH PRESSURE SURFACE 

BLOW DOWN 

TDS CONTROL 

3 

LEVEL CONTROL 

10 

1 

TI 

18 

SOFTENED WATER 

SUPPLY 

17 

2 

12 

TS 

15 

FEED WATER PUMP UNIT 

OVERFILL PROTECTION 

1 Clean Steam Generator: generation of clean, 

sterile steam by using high quality stainless steel 

materials. Steam generation by heat exchanger 

application. 

Consisting of stainless steel tank, removable 

heating bundle and all required connections for 

safety and control. 

2 High pressure bottom blown down control: 

flushing of the boiler bottom where sludge is created 

by timer controlled blow down valve. 

3 High pressure surface blown down control 

(TDS control) continuously measurement of water 

conductivity just below the water surface level. If the 

value is too high, valve opens until the measured 

value drops below the set point. 

4 Pressure control: pressure will be setted 

mechanical (by mechanical pressure control valve) 

or electrical by pressure transmittor (control panel) 

and electrical operated valve. 

5 Steam supply: clean steam outlet port from clean 

steam generator 

6 Feed water tank: preparing feed water for steam 

boilers, collecting condensate, pre-heating of feed 

water. 

7 Overflow: protection against high water 

8 Steam separator unit to prevent steam regulation 

valves from condensate, steam will be separated by 

using steam separator and draining unit 

9 Discharging air and oxygen vent (out of 

building): removing port of waste gases. 

10 Level control: to keep a constant water level in 

the tank a level control system is required. Also 

protection against low an high water is installed. 

11 Pre-heating of feed water to protect the boiler 

against to high temperature differences and heat 

tensions, feed water needs to be pre-heated by 

steam injection. 

12 Drain for draining of the tank 

13 Boiler feed water: feed water supply connection to 

feed water pumps and boilers 

14 Condensate return collecting the condensate 

from different consumers, e. g. steam pipe draining 

points, heat exchangers, laundry mashines. 

15 Blown down cooler to cool down the hot water 

from surface and bottom blow down outlets. 

16 Water sample cooler for daily analysis of feed 

water and boiler water, hot water samples have to 

be cooled down by water sample cooler. 

17 Feed water pump unit vertical multistage 

centrifugal feed water pump which feeds the steam 

generator with feed water. Pump is designed 

according to maximum steam pressure and flow 

capacity of steam boiler. 

18 Master Control panel entire independent steam 

generation regulation and safety devices control 


25

Products: Clean Steam Generators 


(160 - 560 kg/h) 

• Oil or gas fired 

• Vertical evaporation system 

• Without coil / with centrifugal pump 

• Particulary low-maintenance and 

energy-efficent 

In contrast to a steam generator (with 

heating-coil and piston pump), the 

system works as follows: 

• Controlled by the water level 

measured inside of the evaporation 

system, the centrifugal pump refills 

the feed water via the economizer. 

• The burner is controlled by steam 

pressure. 

• A multiplepass pipe transfers the 

burnt-gas heat through the evaporation 

system and to the water inside. 

• Additionally, the economizer transfers 

residual heat from the exhaust 

air to the feed water stream. 

• The special inner structure of the 

evaporation system provides best 

dry steam results. 


High energy efficiency 

• Up to 97% combustion efficiency 

• Condensing heating technology (More than 100% efficiency possible with 

optional use of second economizer) 

• Minimal loss of heat in stand-by-mode 

• High steam quality (little entrainment of water) 

• 3- to 5-pass boiler technology 

Robust and low-maintenance 

• Robust pressure vessel with up to 8mm wall thickness 

• Integreated maintenance-free centrifugal pump 

• State-of-the-art, interchangeable standard burner 

• Gentle heating procedure within 8 minutes 

• Safety-related equipment exceeding the requirements of PED 97/24/EC 

• Components mainly serial products of established suppliers 

Easy 

• Menu-driven, easy operation by full-text touchscreen 

• Simple start / stop procedure by remote control, timer or manual 

• Parallel management of multiple boilers possible as an option 

• Operating pressure up to 11 bar(g). 


Products: Smart Steam Generators 

Multiple Steam Boiler Plants 

(up to 2,240 kg/h) 

If a steam volume in excess of 560 kg/h 

is required or if near 100% safety in 

steam supply by redundancy is required, 

multiple steam plants should be chosen. 

Multiple steam plants usually use a joint 

water supply and joint blow-off vessel. 

Only several steam boiler are set up in 

parallel. 

In multiple steam plants, the capacity 

is adjusted to demand by a boiler 

sequence switching mechanism. 

Your advantages 

• Vertical pressure vessel 

• No heating-coil 

• Especially low maintenance and high energy efficiency 

Electric Clean Steam Generators for low capacities 

• Boiler and components made of high quality stainless steel 

• High clean steam quality 

• Capacity from 20kW to 80kW 

• Simple operation and simple maintenance 

• Innovative design for large water surface leads to dry steam 

• Integrated separator keeps the steam dry even at low pressure 

• Immediate load adjustment by electric power control 

• Operating pressure up to 12 bar 

• Modulating balancing control of the heating rods minimizes 

heating rod strain and extends the service life of the electrical 

components 

• All components are made of high-quality stainless steel and 

therefore offer extremely long service lifes 

• Low space requirements due to compact build 

• Rolls for simple transport or frequent relocation 


• Ideal for: food/beverage producers, lab technology, hospitals, 

medical/pharmaceutics industry 


27

Model EDRE 

Products: Smart Steam Generators 

Vapour Heat Exchangers 

The ECOTHERM vapour heat exchanger is used for: 

• Pre-heating of boiler feed water 

• Condensate relief 

• Degasification of fresh softened water and condensate 

• Flash steam heat recovery 

For this process, thermal degasification, steam is used which deaerates the 

gases (N 2 

, O 2 

, CO 2 

) out of building. Hence there is energy lost on deaerator. 

This “lost energy” can be used for pre-heating of cold softened water or domestic 

cold water. 


ECOTHERM High Capacity Water Heaters 

ECOTHERM “EDRE” high capacity 

water heater with storage tank. 

Description 

High capacity water heater for steam/ 

water operation. External heat exchanger 

with patented free floating 

turbulator rods for increased efficiency 

and self cleaning effect. Perforated 

stainless steel safety cover. 

Fibre-fleece insulated hot water storage 

tank, upright standing. All parts 

in contact with water are made entirely 

of stainless steel AISI-316Ti / 

duplex. “Anti-Legio” design fully compliant 

with European anti-legionella 

recommendations. Microprocessor 

controlled modulating 2 way condensate 

control valve on primary circuit 

return line, secondary circuit circulating 

pump, 4 temperature sensors for 

pre-heat start-up, heating cycle start, 

heating cycle stop and anti-fouling 

cooling cycle. Microprocessor control 

unit mounted on gantry with volt 

free output signals for boiler request 

and alarm. Input signal for remote 

operation. All components are preassembled 

and wired. Simple on-site 

assembly. 

Storage tank insulation 

Fibre-fleece insulation with a robust 

PP exterior shell, patented aluminum 

closure strips and patented self-fixing 

covering rossettes, fire protection 

class B2 (B1 upon request). 

Output performance 

• Output rating: 100 - 2,000 kW 

• Storage capacity: from 300 up to 5,000 liters or larger 

• Peak hot water output: 1,800 - 35,900 liters / hour at 60°C 

(Higher output and storage capacities available on request) 

steam / water 

100 - 2,000 kW 

3 

Model EF 

water / water 

40 - 350 kW 

High Capacity 

Water Heaters 

Model EHRE 

water / water 

100 - 1,000 kW 


Find more information in our brochure 

“High Capacity Water Heaters”. 

Special features 

• Stainless steel AISI-316Ti / duplex for lifelong service 

• Freshly made, hygienic hot water 

• Legionella decontamination cycle, “Anti-Legio” design 

• Anti-fouling cycle 

• Microprocessor control with optional remote control via PC 


Advantages 

ECOTHERM steam solutions offer premium 

service and high quality products with several 

advantages: 

• Efficiency 

• Design 

• Individuality 

• Premium quality 

• Maximum savings 

• Easy control 

• Premium service 

• ECOTHERM Academy 

• Research & development 

• Know-how 

• Certified & approved solutions 

• Experience 


29

Advantages 

Efficiency 

One of ECOTHERM's key values is 

“sustainability”. This especially drives 

the company to produce plants which 

consume as less energy as possible at 

reaching the desired output in means 

of hot water or steam. Therefore 

ECOTHERM has installed its own 

innovation management system at the 

headquarters in Austria. 

This standardarized process ensures 

to permanently improve existing products 

and components and create new 

products to open new possibilities to 

further improve the efficiency of the 

ECOTHERM systems. 

The results are innovative and technologically 

leading products as e. g. 

the ECOTHERM shell & tube heat 

exchanger with the patented free 

floating turbulator rods. With this heat 

Design 

exchanger, hot water system needs 

minimal floor space since hot water can 

be produced just on demand. 

Another example of ECOTHERM's innovative 

and efficient products are the 

ECOTHERM high capacity clean steam 

generators. Using a heat recovery unit, 

primary energy is saved. Moreover the 

clean steam generators have a compact 

design and are skid mounted. This saves 

floor space in the plant room and 

time for installation on site. 

For all individual ECOTHERM turnkey 

systems a detailled 3d visualization 

is already created in design stage. 

Usually 80 to 90 percent of all details 

are included in the design. This ensures 

that the final system meets the 

project's budget, is manufactured and 

delivered in time and that the desired 

performance of the system can be 

reached for sure. 

Moreover the CAD data from the design 

are the basis for the start of the 

operations scheduling. Due to the saved 

parameters e. g. also the bill of 

lading is created. 

Finally the service man uses the 3d 

visualization at the touch screen of 

the control panel in order to monitor 

and modify the most important process 

parameters. 

Optimal overview on the touch screen 

of the control panel for monitoring 

and controlling the system due to the 

3d visualization. 


Advantages 

Individuality 

According to the project specifications, 

the ECOTHERM engineerings 

choose the suitable products for your 

individual steam solution. All components 

are perfectly coordinated with 

each other. This ensures the maximum 

efficiency of the system and therefore 

the maximum return on investment 

of your money. 

Premium Quality 

On the one hand ECOTHERM as a 

company and its products are certified 

and approved according to the highest 

European standards. But “premium 

quality” at ECOTHERM means much 

more. It is the philosophy to supply the 

best possible system to the customer. 

If we are not satisfied with a solution, 

we develop our own standard as e. 

g. the ECOTHERM touch panel for 

the control of the system or the ECO- 

THERM insulation solution, which is 

outstanding due to its patented components. 

These are just two examples 

where we set new 

standards for the 

market concerning 

quality. This philosophy 

is one of the 

main reasons why 

ECOTHERM is the 

market leader for 

individual turnkey 

solar, hot water and 

steam systems in 

the Middle East. 

Maximum Savings 

ECOTHERM systems consist mainly of 

high capacity components. These products 

achieve maximum performance 

with minimal space requirements. Taking 

into consideration that one can utilize 

this space for another purpose, this 

fact saves a lot of money. 

The ECOTHERM microprozessor 

control panel optimizes the overall 

performance of the system. Due to 

the high capacity shell & tube heat 

exchangers with the patented free 

floating turbulator rods, the burners 

are only started at continuous hot 

water demand. For small demands, 

the hot water in the storage tank is 

used. On the other hand only a very 

small capacity of the storage tank 

is heated up to 60°C. Therefore the 

number of burner starts per day is 

significantly reduced compared to 

conventional systems. 

If possible, the experienced ECO- 

THERM engineers further equip the 

system with an economizer, water 

treatment components and a heat 

recovery unit in order to further save 

primary energy. 


31

Advantages 

Premium Service 

Supplying an individual turnkey solution, 

ECOTHERM provides a huge range 

of services ranging from design, 

3d visualization, project management, 

over manufacture, pre-assembly, prewiring 

and testing to shipping, commissioning, 

supervision and maintenance. 

Experienced ECOTHERM engineers 

ensure that your system operates 

stable, save, reaches the desired output 

and they train your staff how to 

monitor and control the most important 

parameters 

of the system. 

Premium quality 

of the products 

and premium service 

during the 

whole project is 

the minimum you 

should claim for 

your individual 

steam system. 

ECOTHERM Academy 

The aim of the ECOTHERM Academy 

is the strategically planned training 

of all employees and partners. 

The ECOTHERM Academy systematically 

identifies the needs and 

wishes of all participants for trainings 

and seminars. The strategic aims of 

the company for the next three years 

are also be considered at planning. 

In addition, the Academy offers optional 

courses from different areas. 

The ECOTHERM International Support 

Centre in Dubai plays a central 

role in the implementation 

of the 

trainings on an 

international level. 

The basis for the 

training courses is 

a library of so-called 

“ECOCELLS”. 

These presentations 

or videos 

cover all important 

issues that have 

to be trained. 

Research & Development 

According to its own innovation management 

system, ECOTHERM is permanently 

working on new innovative 

ideas. The basis for the success of this 

innovation management system is the 

production facility in Austria, which is 

also equipped with a testing lab. 

New ECOTHERM products are tested 

according to the highest European 

standards. Furthermore components 

from selected suppliers are also tested 

in detail before they may become part 

of an ECOTHERM turnkey solution. 

Together with the design 

department the innovative 

and technologically 

leading ECOTHERM 

products are optimally 

coordinated with other 

components in order to 

build a perfect turnkey 

steam system, which 

operates stable, safe 

and efficient from day 

one. 


Advantages 

Know-how 

ECOTHERM is a family owned company 

with a clear vision. The goal is 

to become the leading brand for solar, 

hot water and steam systems in 

defined “core markets”. Furthermore 

there exists a clear strategy how this 

vision will become true. Following 

this strategy ECOTHERM focusses 

very precisely on its core 

business. Employees are 

trained in the ECOTHERM 

Academy, which takes into 

consideration the main strategic 

goals within the next 

three years. This knowhow 

is organized 

in a self-developed 

knowledge management system 

to ensure that all ECO- 

THERM employees have the 

same know-how. Additionally 

more than half of the employees 

at the ECOTHERM headquarters 

in Austria have already 

been working for the company for 

more than five years. All this results 

in experienced engineers who design 

your individual steam system with a 

high efficiency, a compact design, a 

maximum performance and a save 

and stable operation. 

Certified & Approved Solutions 

The quality management system of 

ECOTHERM for sizing, design, production 

and distribution of solar, hot 

water and steam systems as well 

as of pressure vessels and heat exchangers 

is certified according to ISO 

9001 : 2008. 

The products are manufactured in 

high quality stainless steel according 

to the highest European standards as 

e. g. ISO 3834-2 and therefore guarantee 

long service life and perfect 

hygiene. 

Our own test 

bench at the ECO- 

THERM headquarters 

in Austria 

assures the highest 

quality and reliability 

of all products. 

Furthermore products 

from our suppliers must 

also be certified to the 

highest industrial standards 

in order to be approved 

by ECOTHERM. 

Experience 

As a result of our more than thousand 

in stal la tio ns in Eu ro pe, the Middle 

East, Asi a, North Africa and in Central 

America over the past twelve years, 

ECOTHERM has become one 

of the technology and innovation 

leaders on the market for solar, hot 

water and steam systems. The employees 

have long service records 

with the company and they continuously 

refresh their know-how through 

the training and seminars at the 

ECOTHERM Academy. 


33

Technical 

Specifications 

For all products technical details are supplied in 

this chapter. If you need further information, ask our 

ECOTHERM engineers. 



Boiler and Feed Water Specifications 

for Steam Boiler Plants 

Feed water and raw water specifications for water softener, Reverse Osmosis and 

Feed water tank 

Feed water raw water for WS raw water for RO 

Working pressure bar(g) > 1 < 22 > 2.5 < 8 > 2 < 6 

Temperature °C - > 5 < 30°C > 5 < 40°C 

Properties 

1 

Noted in the past at °dH, changing factor: 1 mmol/l = 5.6 °dH (German hardness). 

colourless, clear, free from suspended matter and foam 

pH-value at 25°C > 9 > 9 > 2 < 11 

Sum of alkaline earth elements (Ca + Mg) 1 mmol/l < 0.02 - < 0.02 

°dH < 0.112 - < 0.112 

Conductivity at 25°C µS/cm see guidelines for boiler water specifications only < 1400 

Oxygen (O 2 

) mg/l < 0.02 - - 

Carbon dioxide (CO 2 

) dissolved mg/l < 25 - - 

Iron (Fe), total mg/l < 0.05 < 0.1 < 0.1 

Copper (Cu), total mg/l < 0.01 < 0.01 < 0.01 

Silicate acid (SiO 2 

) mg/l see guidelines for boiler water only 

Chloride mg/l < 0.1 < 0.1 < 0.1 

Consumption of Potassium permanganate mg/l < 10 < 10 < 10 

Oil, fat mg/l < 0.1 < 0.1 < 0.1 

It is not necessary to make continuous control of the following parameters: Conductivity, Oxygen (O 2 

), Carbon dioxide (CO 2 

) dissolved, Iron (Fe), 

total, Copper (Cu), total, Silicate (SiO 2 

), Consumption of Potassium permanganate, Oil, fat. 

Boiler water specifications for natural circulating boilers 

Working pressure bar(g) 1 < 22 >22 < 44 

Properties 

colourless, clear, free from suspended matter and foam 

pH-value at 25°C 10.5-12 10.5-12 10-11.8 

Sum of alkaline earth elements (Ca + Mg) 2 mmol/l < 0.02 < 0.02 < 0.01 

°dH < 0.112 < 0.112 < 0.056" 

Conductivity at 25°C µS/cm < 5000* < 5000* < 2000* 

Acid capacity KS 8,2 3 (p-value) mmol/l 1-12 1-12 0.5-6 

Carbon dioxide (CO 2 

) dissolved mg/l < 25 < 25 < 25 

Iron (Fe), total mg/l -- < 0.05 < 0.03 

Silicate acid (SiO 2 

) mg/l < 150 < 100 < 50 

Phosphate (P 2 

O 4 

) 4 mg/l 10-20 5-10 5-10 

Sodium sulphate (Na 2 

SO 3 

) 4 mg/l 5-10 5-10 3-5 

(Polyamide) 5 mg/l (3-5) (3-5) -- 

1 

Take care to maintain the allowed value of acid capacity - at this point the allowed conductivity has to be lower on many 

plants; for water level electrodes minimum conductivity > 5 μS/cm 

2 

Noted in the past at °dH, changing factor: 1 mmol/l = 5.6 °dH (German hardness) 

3 

Noted in the past as p-value, changing factor: KS 8.2 = 1 according p-value = 1 

4 

Measurements only necessary if dosing chemicals are used which contains these values 

5 

It is recommended to use Amine (film producing) only instead of other dosing chemicals for boilers which have a small 

heating load and up to maximum 16 bar(g) working pressure. Because of the danger of foam production overdosing is not permitted! 


35

THREE PASS REVERSE FLAME WET BACK BOILER 

. 

97 


Steam boiler model ESBI-L is a reverse flame 3 pass wet back horizontal 

boiler . Boiler ’s body is suitable for use on gaseous and liquid fuels. 

The boiler is fully provided with all the accessories for regulating and safety 

for the automatic operation. 

Steam Boilers ESBI-L 

Model 

Boiler code 

Model 

Boiler code 

Heat output Heat input 

Heat output 

Heat input 

Efficiency at 

100% load 

Efficiency at 

100% load 

Steam Working P 

production* min/max 

Steam 

production* 

Working P 

min/max 

Water 

volume 

Water 

volume 

Water 

volume total 

Water 

volume total 

kW kcal/h kW kcal/h % kg/h bar l l kg 

ESBI-L 350 86240350 238 205.100 265 227.900 90,00 90,00 350 350 8-11,5 8-11.5590 590810 810 1500 1500 

ESBI-L 500 86240500 341 293.000 379 325.600 90,00 500 8-11,5 670 920 1620 

ESBI-L 500 86240500 341 293.000 379 325.600 90,00 500 8-11.5 670 920 1620 

ESBI-L 650 86240650 443 380.900 492 423.200 90,00 650 8-11,5 900 1120 2000 

ESBI-L 650 86240650 443 380.900 492 423.200 90,00 650 8-11.5 900 1120 2000 

ESBI-L 800 86240800 545 468.800 606 520.900 90,00 800 8-11,5 950 1250 2120 

ESBI-L 800 86240800 545 468.800 606 520.900 90,00 800 8-11.5 950 1250 2120 

ESBI-L 1000 86241000 681 586.000 757 651.100 90,00 1000 8-11,5 1280 1830 2720 

ESBI-L 1000 86241000 681 586.000 757 651.100 90,00 1000 8-11.5 1280 1830 2720 

ESBI-L 1350 86241350 920 791.100 1022 879.000 90,00 1350 8-11,5 1475 2190 3250 

ESBI-L 1350 1700 86241350 86241700 1158 920 996.200 791.100 1287 1022 1.106.900 879.000 90,00 90,00 1700 1350 8-11,5 8-11.52000 1475 2640 2190 3700 3250 

ESBI-L 2000 86242000 1363 1.172.000 1514 1.302.200 90,00 2000 8-11,5 2300 3050 4250 

ESBI-L 1700 86241700 1158 996.200 1287 1.106.900 90,00 1700 8-11.5 2000 2640 3700 

ESBI-L 2500 86242500 1703 1.465.000 1893 1.627.800 90,00 2500 8-11,5 2490 3380 5000 

ESBI-L 2000 86242000 1363 1.172.000 1514 1.302.200 90,00 2000 8-11.5 2300 3050 4250 

ESBI-L 3000 86243000 2044 1.758.000 2271 1.953.300 90,00 3000 8-11,5 2825 4020 5650 

ESBI-L 2500 86242500 1703 1.465.000 1893 1.627.800 90,00 2500 8-11.5 2490 3380 5000 

ESBI-L 3500 86243500 2385 2.051.000 2650 2.278.900 90,00 3500 8-11,5 3600 5000 6950 

ESBI-L 3000 86243000 2044 1.758.000 2271 1.953.300 90,00 3000 8-11.5 2825 4020 5650 

ESBI-L 4000 86244000 2726 2.344.000 3028 2.604.400 90,00 4000 8-11,5 4800 6950 8550 

ESBI-L 3500 5000 86243500 86245000 3407 2385 2.930.000 2.051.000 3786 2650 3.255.600 2.278.900 90,00 90,00 5000 3500 8-11,5 8-11.55200 3600 7400 5000 9600 6950 

ESBI-L 

*Steam 

4000 

production actual 

86244000 

from feed water at 

2726 

80°C 

2.344.000 3028 2.604.400 90,00 4000 8-11.5 4800 6950 8550 

ESBI-L 5000 86245000 3407 2.930.000 3786 3.255.600 90,00 5000 8-11.5 5200 7400 9600 

Weight 

kW kcal/h kW kcal/h % kg/h bar(g) l l kg 

Weight 

• Standard equipement: 

• 2 level indicators 

• 1 main steam stop valves 

• 1 pressure gauge 

• 1 limit pressure switch 

• 1 second stage pressure switch 

• 1 safety pressure switch, manual reset 

• 1 automatic level control 

• 1 low level safety probe 

• 1 extra low level safety probe 

• 2 feed water pumps 

• 2 strainers 

• 3 isolating valves 

• 3 non-return valves 

• 1 blowdown stop valve 

• 1 control panel 3/N 400V 50 bHz 

Model 

Furnace 

resistance 

Burner blast 

tube length 

Fuel consumption 

Dimensions 

H L L1 P Øc 

mbar mm Natural gas Diesel oil Heavy oil mm mm mm mm mm 

ESBI-L 350 5.0 280-330 27.1 22.3 23.5 1810 1510 1230 1840 250 

ESBI-L 500 6.5 280-330 38.8 31.9 33.6 1810 1510 1230 2090 250 

ESBI-L 650 5.0 320-370 50.4 41.5 43.6 1930 1630 1350 2130 300 

ESBI-L 800 5.0 320-370 62.0 51.1 53.7 1930 1630 1350 2350 300 

ESBI-L 1000 7.0 350-400 77.5 63.8 67.1 2140 1840 1560 2350 350 

ESBI-L 1350 6.5 350-400 104.6 86.2 90.6 2140 1840 1560 2760 350 

ESBI-L 1700 9.5 370-420 131.8 108.5 114.1 2300 1990 1710 2790 400 

ESBI-L 2000 10.0 370-420 155.0 127.7 134.2 2300 1990 1710 3150 400 

ESBI-L 2500 6.5 420-470 193.8 159.6 167.8 2460 2170 1880 3200 450 

ESBI-L 3000 9.0 420-470 232.5 191.5 201.4 2530 2210 1880 3700 450 

ESBI-L 3500 9.0 480-530 271.3 223.4 234.9 2720 2350 2020 3770 500 

ESBI-L 4000 10.0 480-530 310.0 255.3 268.5 2840 2470 2140 4280 550 

ESBI-L 5000 11.0 480-530 387.6 319.2 335.6 2960 2590 2260 4530 600 


Steam Boilers ESBI-H 

Medium - high pressure steam boiler ESBI-H is a genuine three pass 

wet back horizontal fire tube boiler, designed in accordance with 

the latest EU codes and produced especially for industrial plants. 

The ESBI-H boiler is manufactured incorporating the latest technology 

and provides excellent performance, in order to satisfy the special 

requirements of reliability, endurance and control. Technical Specifications 

• supplied fully packaged and ready for installation 

• large steam space and evaporation surface for good quality dry steam 

• large heating surface without use of turbulators for a low heat 

release 

• flanged tube plates for full flexibility of the vessel during the 

combustion process 

• standby feed pump as standard 

Model 

Model 

Boiler code 

Boiler code 

Steam Working P min./max. Water volume Dry weight 

Heat output Heat input 

12 bar 

production 12 bar 15 bar NWL Total 12 bar 15 bar 

12 bar(g) 15 15 bar(g) output input production 12 bar 15 bar NWL Total 12 bar 15 bar 

kW kW kg/h bar bar l l kg kg 

ESBI-H 1000 86161000 86171000 1163 1292 1700 8 / 11.5 10 / 14.3 4565 5940 6500 7300 

ESBI-H 1200 86161200 86171200 1395 1550 2040 8 / 11.5 10 / 14.3 4445 5805 7100 8000 

ESBI-H 1500 86161500 86171500 1744 1938 2560 8 / 11.5 10 / 14.3 5475 6960 8500 9500 

ESBI-H 1750 86161750 86171750 2035 2261 3000 8 / 11.5 10 / 14.3 5395 6890 9600 10700 

ESBI-H 2000 86162000 86172000 2326 2584 3410 8 / 11.5 10 / 14.3 6615 8435 10500 11800 

ESBI-H 2500 86162500 86172500 2907 3230 4270 8 / 11.5 10 / 14.3 7640 9610 11500 12800 

ESBI-H 3000 86163000 86173000 3488 3876 5100 8 / 11.5 10 / 14.3 7955 9865 13000 14300 

ESBI-H 3500 86163500 86173500 4070 4522 6000 8 / 11.5 10 / 14.3 9565 11940 14300 16000 

ESBI-H 4000 86164000 86174000 4651 5168 6820 8 / 11.5 10 / 14.3 10280 12630 16000 18000 

ESBI-H 5000 86165000 86175000 5814 6460 8500 8 / 11.5 10 / 14.3 11180 14120 18000 20000 

ESBI-H 6000 86166000 86176000 6977 7752 10240 8 / 11.5 10 / 14.3 13345 16530 21000 23200 

ESBI-H 7000 86167000 86177000 8140 9044 12000 8 / 11.5 10 / 14.3 15970 20030 24000 26200 

ESBI-H 8000 86168000 86178000 9302 10336 13600 8 / 11.5 10 / 14.3 20050 25700 26500 29000 

ESBI-H 9000 86169000 86179000 10465 11628 15300 8 / 11.5 10 / 14,3 22060 28140 30000 32500 

ESBI-H 10000 86169900 86179900 11628 12920 17000 8 / 11.5 10 / 14.3 24620 31120 

Higher pressure available upon request 

33000 36000 

ESBI-H 12000 86169912 86179912 13953 15500 20000 8 / 11.5 10 / 14.3 29250 37500 38000 42000 

ESBI-H 1000 86161000 86171000 1163 1292 1700 8 / 11,5 10 / 14,3 4565 5940 6500 7300 

ESBI-H 1200 86161200 86171200 1395 1550 2040 8 / 11,5 10 / 14,3 4445 5805 7100 8000 

ESBI-H 1500 86161500 86171500 1744 1938 2560 8 / 11,5 10 / 14,3 5475 6960 8500 9500 

ESBI-H 1750 86161750 86171750 2035 2261 3000 8 / 11,5 10 / 14,3 5395 6890 9600 10700 

ESBI-H 2000 86162000 86172000 2326 2584 3410 8 / 11,5 10 / 14,3 6615 8435 10500 11800 

ESBI-H 2500 86162500 86172500 2907 3230 4270 8 / 11,5 10 / 14,3 7640 9610 11500 12800 

ESBI-H 3000 86163000 86173000 3488 3876 5100 8 / 11,5 10 / 14,3 7955 9865 13000 14300 

ESBI-H 3500 86163500 86173500 4070 4522 6000 8 / 11,5 10 / 14,3 9565 11940 14300 16000 

ESBI-H 4000 86164000 86174000 4651 5168 6820 8 / 11,5 10 / 14,3 10280 12630 16000 18000 

ESBI-H 5000 86165000 86175000 5814 6460 8500 8 / 11,5 10 / 14,3 11180 14120 18000 20000 

ESBI-H 6000 86166000 86176000 6977 7752 10240 8 / 11,5 10 / 14,3 13345 16530 21000 23200 

ESBI-H 7000 86167000 86177000 8140 9044 12000 8 / 11,5 10 / 14,3 15970 20030 24000 26200 

ESBI-H 8000 86168000 86178000 9302 10336 13600 8 / 11,5 10 / 14,3 20050 25700 26500 29000 

ESBI-H 9000 86169000 86179000 10465 11628 15300 8 / 11,5 10 / 14,3 22060 28140 30000 32500 

ESBI-H 10000 86169900 86179900 11628 12920 17000 8 / 11,5 10 / 14,3 24620 31120 33000 36000 

ESBI-H 12000 86169912 86179912 13953 15500 20000 8 / 11,5 10 / 14,3 29250 37500 38000 42000 

Higher duty up to 17441 kW (25000 kg/h) available on request 

Steam production actual from feed water at 80°C 

Heat 

Heat 

Steam 

Working P min/max Water volume Dry weight 

Standard equipment 

• 2 level indicators 

• 1 main steam stop valve 

• 2 spring safety valves 

• 1 pressure gauge 

• 1 limit pressure switch 

• 1 second stage pressure switch 

• 1 safety pressure switch, manual reset 

• 1 automatic level control 

• 1 low level safety probe 

• 1 extra low level safety probe 

• 2 feed water pumps 

• 2 strainers 

• 3 isolating valves 

• 3 non-return valves 

• 1 blowdown stop valve 

• 1 control panel 3/N~ 400V 50 Hz 

Ø C 

Model 

Furnace 

resistance 

Burner blast 

tube length 

Fuel consumption 

Dimensions 

Øc H L L1 P 

mbar mm Natural gas Diesel oil Heavy oil mm mm mm mm mm 

ESBI-H 1000 5.5 min. 320 132.3 108.9 114.5 400 3200 2450 2000 4100 

ESBI-H 1200 7.0 min. 320 158.7 130.7 137.4 400 3200 2450 2000 4100 

ESBI-H 1500 7.0 min. 320 198.4 163.4 171.8 450 3300 2550 2180 4100 

ESBI-H 1750 7.0 min. 320 231.5 190,6 200.5 450 3350 2650 2180 4100 

ESBI-H 2000 8.5 min. 320 264.6 217.9 229.1 500 3350 2650 2180 4600 

ESBI-H 2500 8.0 min. 320 330.7 272.3 286.4 550 3500 2760 2300 4900 

ESBI-H 3000 9.0 min. 320 396.8 326.8 343.6 600 3600 2900 2340 5100 

ESBI-H 3500 10.5 min. 320 463.0 381.3 400.9 600 3600 2900 2400 5600 

ESBI-H 4000 10.0 min. 380 529.1 435.7 458.2 650 3780 3000 2500 5700 

ESBI-H 5000 10.5 min. 380 661.4 544.7 572.7 650 3954 3200 2640 5700 

ESBI-H 6000 12.0 min. 430 793.7 653.6 687.3 700 4110 3300 2740 6300 

ESBI-H 7000 12.0 min. 430 925.9 762.5 801.8 700 4250 3460 2880 6750 

ESBI-H 8000 14.0 min. 430 1058.2 871.5 916.4 800 4400 3620 3040 7250 

ESBI-H 9000 14.0 min. 500 1190.5 980.4 1030.9 900 4550 3750 3200 7650 

ESBI-H 10000 15.0 min. 500 1322.8 1089.3 1145.5 900 4550 3750 3280 8050 

ESBI-H 12000 19.0 min. 550 1586.9 1306.9 1374.2 1100 4850 4000 3500 8600 


37


Steam Boilers ESBH-L 

Technical data boiler without economizer (based on 10 bar(g) working pressure) 

Model 500 650 800 1000 1200 1500 

Steam rating kg/h 500 650 800 1000 1200 1500 

Operating output kW 326 423 521 651 781 977 

Working pressure bar(g) 10 10 10 10 10 10 

Heating surface load (nominal capacity) kg/m 2 66,3 61,4 64,0 64,7 61,5 61,5 

Heating surface flue gas side (complete)* m 2 

*For heating surface water side approximately +15% 

7,54 10,58 12,50 15,45 19,50 24,40 

Boiler efficiency minimum % 88,0 88,0 88,0 88,0 88,0 88,0 

Pressure drop flue gas side mbar 3,5 3,6 3,9 4,0 4,4 4,5 

Water content operating liters 600 910 960 970 1178 1386 

Water content full liters 790 1076 1240 1332 1470 1965 

Technical data Natural gas 

Model 500 650 800 1000 1200 1500 

Natural gas calorific value kJ/Nm 3 36,000 36,000 36,000 36,000 36,000 36,000 

Fuel consumption at full capacity Nm 3 /h 35 45 56 69 83 104 

Wet flue gas volume at 2.4% O 2 

Nm 3 /h 431 547 673 842 1010 1262 

Dry flue gas volume at 3% O 2 

Nm 3 /h 368 467 575 719 863 1079 

Fuel heat input without economizer kW 377 479 590 737 888 1110 

Fuel heat input with economizer kW 347 451 555 694 833 1041 

Flue gas temperature °C 140 140 140 140 140 140 

Technical data Diesel Oil (35 secs) 

Model 500 650 800 1000 1200 1500 

Oil calorific value kJ/kg 42,700 42,700 42,700 42,700 42,700 42,700 

Fuel consumption at full capacity kg/h 31 40 50 62 75 93 


Nm 3 /h 433 550 677 846 1016 1269 


Nm 3 /h 390 495 610 762 914 1143 

Fuel heat input without economizer kW 377 479 591 736 882 1102 

Fuel heat input with economizer kW 347 451 555 694 833 1041 

Flue gas temperature °C 140 140 140 140 140 140 

Technical data boiler with economizer (based on 10 bar(g) working pressure) 

Model 500 650 800 1000 1200 1500 

Additional output with economizer kW 24 29 32 42 47 52 

Boiler efficiency with economizer % 94.0 94.0 94.0 94.0 94.0 94.0 

Pressure drop flue side including economizer mbar 6.5 6.6 6.9 7.0 7.4 7.5 

Flue gas temperature after economizer °C 140 140 140 140 140 140 



Technical data boiler without economizer (based on 10 bar(g) working pressure) 

Model 2000 2500 3000 3500 4000 

Steam rating kg/h 2000 2500 3000 3500 4000 

Operating output kW 1303 1628 1953 2279 2605 

Working pressure bar(g) 10 10 10 10 10 

Heating surface load (nominal capacity) kg/m 2 63.0 58.2 57.6 58.8 58.9 



31.74 42.93 52.10 59.50 67.90 

Boiler efficiency minimum % 88.0 88.0 88.0 88.0 88.0 

Pressure drop flue gas side mbar 5.2 5.3 5.8 6.1 6.8 

Water content operating liters 2000 2575 2894 3240 3540 

Water content full liters 2550 3500 3840 4270 4525 


Model 2000 2500 3000 3500 4000 

Natural gas calorific value kJ/Nm 3 36,000 36,000 36,000 36,000 36,000 

Fuel consumption at full capacity Nm 3 /h 138 184 208 243 278 


Nm 3 /h 1683 2104 2552 2946 3366 


Nm 3 /h 1483 1798 2157 2517 2876 

Fuel heat input without economizer kW 1476 1843 2211 2580 2948 

Fuel heat input with economizer kW 1388 1735 2082 2429 2776 

Flue gas temperature °C 140 140 140 140 140 


Model 2000 2500 3000 3500 4000 

Oil calorific value kJ/kg 42,700 42,700 42,700 42,700 42,700 

Fuel consumption at full capacity kg/h 124 155 186 217 249 


Nm 3 /h 1693 2116 2539 2962 3385 


Nm 3 /h 1524 1905 2286 2667 3048 

Fuel heat input without economizer kW 1473 1846 2211 2580 2948 

Fuel heat input with economizer kW 1388 1735 2082 2428 2776 

Flue gas temperature °C 140 140 140 140 140 

Technical data boiler with economizer (based on 10 bar(g) working pressure) 

Model 2000 2500 3000 3500 4000 

Additional output with economizer kW 69 82 105 134 165 

Boiler efficiency with economizer % 94.0 94.0 94.0 94.0 94.0 

Pressure drop flue side including economizer mbar 8.2 8.3 8.8 9.1 9.8 

Flue gas temperature after economizer °C 140 140 140 140 140 


39


Steam Boilers ESBH-L 

Dimensions and weights 

Model 500 650 800 1000 1200 1500 

Boiler length with insulation, without burner mm 2260 2460 2560 2760 2760 3340 

Boiler length with Eco and insulation, 

mm 

3300 3500 3550 3700 3700 4280 

without burner 

Boiler width with insulation, with pump mm 1760 1850 1950 1950 2030 2050 

Boiler height with insulation, with fittings mm 1870 1960 2060 2060 2140 2160 

Insulation thickness mm 100 100 100 100 100 100 

Flue gas outlet diameter 1 mm 200 200 250 300 300 300 

Minimum draft tube length mm 350 350 350 350 350 350 

Transport weight at 10 bar(g) kg 2100 2300 2600 2900 3200 3400 

Operating weight flooded at 10 bar(g) kg 3100 3500 4200 4600 5000 5800 

Manhole size mm 

420x320 420x320 420x320 420x320 420x320 420x320 

quantity no. 

1 

1 

1 

1 

1 

1 

Inspection port size mm 

80 

80 

80 

80 

80 

80 

quantity no. 

2 

2 

2 

2 

2 

2 

Model 2000 2500 3000 3500 4000 

Boiler length with insulation, without burner mm 3810 3910 3910 4210 4410 

Boiler length with Eco and insulation, 

mm 

4900 4900 4900 5200 5400 

without burner 

Boiler width with insulation, with pump mm 2100 2350 2500 2550 2550 

Boiler height with insulation, with fittings mm 2210 2460 2560 2640 2640 

Insulation thickness mm 100 100 100 100 100 

Flue gas outlet diameter 1 mm 350 450 450 450 450 

Minimum draft tube length mm 350 350 350 350 350 

Transport weight at 10 bar(g) kg 4000 5000 6000 7000 8000 

Operating weight flooded at 10 bar(g) kg 6500 8900 10400 12000 13400 

Manhole size mm 

420x320 420x320 420x320 420x320 420x320 

quantity no. 

1 

1 

1 

1 

1 

Inspection port size mm 

80 

80 

80 

80 

80 

quantity no. 

2 

2 

2 

2 

2 

1 

Ducting and chimney diameters to be sized for site application. 


THD-U E 

Industrial Steam Boiler for Gas and Oil Firing 

Hoval 


Dimensions 

ESBH-L without economizer 

THD-U E without economiser 

1 Boiler 

Boiler base 

23 Boiler Hinged base front door 

34 Hinged Flue gas front outlet door 

5 Explosion/cleaning door (flue side) 

4 Flue gas outlet 

6 Inspection opening (waterside) 

7 Instrument assembly 




8 tds shut 

8 tds 

off valve 

shut off valve 

9 Steam shut off valve 

10 Safety valve(s) 

11 Water 10 level Safety gauges valve(s) 

12 Water level control 

13 Water level alarms 

14 Feed water inlet pipework 


1 

Optional 2nd feed water pump. 

2 

Burner shown is monoblock type. 

3 


11 Water level gauges 




15 Feed water valve(s) 1 

16 Bottom blow down ball valve 

17 Pressure stats 

18 Feed water pump(s) 1 

19 Electrical control panel 

20 Burner 2 

21 Flame viewing point 

Design pressure 11 and 14 bar (overpressure). 

Higher pressures available on request. 

15 Feed water valve(s) 1 



18 Feed water pump(s) 1 


20 Burner 2 

21 Flame viewing point 

1 Dimensions Optional 2nd incl. feed 100 mm water insulation pump. thickness. 

Transport dimensions for pressure level 11 bar. 

2 

Burner shown is monoblock type. 

Design pressure 11 and 14 bar(g) (overpressure). 

3 


Higher pressures available on request. 

Main dimensions Boiler base Flue gas 

connection 3 

Dimensions 

THD-U E 

incl. 

L 

100 mm 

B 

insulation 

B 2 thickness. 

B 3 

H H 2 

H 4 

D 

Model 

Transport dimensions for pressure level 11 bar(g). 

500 

2260 

2760 

3810 

2500 3910 2350 2075 2050 2460 1100 877 1800 2500 1300 2060 450 

800 3000 3910 25602500 

19502225 

1775 2150 1650 2560 2060 1150 900 882 1900 735 2500 1400 1450 15002160 

1000450 

1660 250 

4210 

4410 

1760 

2030 

2100 

2550 

2550 

1625 

1875 

1975 

2225 

2225 

1460 

650 2460 1850 1675 1550 

800 2560 1950 1775 1650 

1000 2760 1950 1775 1650 

1200 

2000 

3500 

4000 

1730 

1800 

2200 

2200 

1870 

1960 

2060 

805 

850 

900 

673 

700 

735 

1210 

1300 

1400 

1300 

1500 

1500 

850 

900 

1000 

1470 

1560 

1660 

200 

200 

250 

Main 2060 dimensions 900 735 1400 1500 1000 Boiler 1660 base 300 Fuel gas connection 3 

2140 

2210 

2640 

2640 

940 

975 

1175 

1175 

760 

771 

945 

945 

1480 

1550 

1950 

1950 

L 1 

B 1 

H 1 

D 1 

Model L B B 2 

B 3 

H H 2 

H 4 

D L 1 

B 1 

H 1 

D 1 

1500 

500 

3340 2050 

2260 

1875 

1760 

1750 

1625 

2160 

1460 

950 

1870 

770 

805 

1500 

673 

2200 

1210 

1100 1760 

1300 

300 

850 1470 200 

650 2460 1850 1675 1550 1960 850 700 1300 1500 900 1560 200 

1000 2760 1950 1775 1650 2060 900 735 1400 1500 1000 1660 300 

1200 2760 2030 1875 1730 2140 940 760 1480 1500 1100 1740 300 

1500 3340 2050 1875 1750 2160 950 770 1500 2200 1100 1760 300 

1-6 2000 3810 2100 1975 1800 2210 975 771 1550 2500 1200 1810 350 

2500 3910 2350 2075 2050 2460 1100 877 1800 2500 1300 2060 450 

3000 3910 2500 2225 2150 2560 1150 882 1900 2500 1450 2160 450 

3500 4210 2550 2225 2200 2640 1175 945 1950 2800 1450 2210 450 

4000 4410 2550 2225 2200 2640 1175 945 1950 3000 1450 2210 450 

1500 

2500 

2800 

3000 

1100 

1200 

1450 

1450 

1740 

1810 

2210 

2210 

300 

350 

450 

450 


41


Steam Boilers ESBH-H 

Technical data boiler without economizer 

Model 2000 2500 3000 4000 5000 6000 8000 

Steam output 

kg/h 2000 2500 3000 4000 5000 6000 8000 

Operating output 

at 10 bar(g) kW 



1304 

1308 

1311 

1630 

1635 

1639 

1956 

1963 

1967 

2608 

2617 

2623 

3260 

3271 

3278 

3912 

3925 

3934 

5216 

5234 

524 

Boiler efficiency Natural gas at 10 bar(g) % 

at 13 bar(g) % 


Boiler efficiency at 10 bar(g) % 

Diesel Oil (35 secs) at 13 bar(g) % 



89.8 

89.3 

89.0 

90.2 

89.7 

89.3 

90.0 

89.5 

89.1 

90.1 

89.6 

89.2 

Flue gas resistance mbar 9.0 9.0 10.0 10.0 10.0 10.0 10.0 

Model 2000 2500 3000 4000 5000 6000 8000 

Natural gas calorific value kJ/Nm 3 36000 36000 36000 36000 36000 36000 36000 

Fuel consumption at at 10 bar(g) Nm 3 /h 

at 13 bar(g) Nm 3 /h 


145.3 

146.7 

147.7 

181.1 

182.7 

184.0 

89.7 

89.2 

89.9 

89.8 

89.3 

89.0 

220.7 

222.7 

224.2 

89.9 

89.4 

89.0 

89.9 

89.4 

89.0 

290.3 

292.9 

294.9 

90.2 

89.7 

89.3 

90.2 

89.7 

89.3 

361.7 

364.9 

367.5 

90.4 

90.0 

89.5 

90.4 

90.0 

89.5 

432.9 

436.5 

439.8 

89.7 

89.2 

89.0 

89.7 

89.2 

89.0 

581.9 

587.1 

583.6 

Flue gas volume, at 10 bar(g) Nm 3 /h 

excess air @10% at 13 bar(g) Nm 3 /h 


1688 

1701 

1414 

2018 

2036 

2050 

2458 

2481 

2498 

3234 

3263 

3285 

4030 

4066 

4094 

4822 

4863 

4899 

6482 

6540 

6501 

Fuel heat input 




1453 

1465 

1476 

1811 

1826 

1839 

2181 

2201 

2215 

2902 

2928 

2948 

3614 

3647 

3671 

4327 

4361 

4396 

5815 

5868 

5901 


Model 2000 2500 3000 4000 5000 6000 8000 

Diesel Oil calorific value kJ/kg 42700 42700 42700 42700 42700 42700 42700 

Fuel consumption at 

full capacity 

at 10 bar(g) kg/h 



121.9 

123.0 

123.9 

152.6 

154.0 

155.1 

183.8 

185.4 

186.7 

244.6 

246.8 

284.5 

304.9 

307.6 

309.8 

364.9 

368.0 

370.8 

490.3 

494.7 

491.8 




1647 

1661 

1673 

2061 

2080 

2094 

2482 

2504 

2522 

3304 

3333 

3365 

4117 

4154 

4183 

4928 

4970 

5007 

6621 

6680 

6641 





1446 

1458 

1468 

1810 

1825 

1838 

2179 

2199 

2213 

2900 

2926 

2947 

3614 

3647 

3671 

4327 

4361 

4396 

5815 

5868 

5894 

Technical data with integral economizer, fuel natural gas and low sulphur fuel oil 

Model 2000 2500 3000 4000 5000 6000 8000 

Additional operating output 

with economizer 




Boiler efficiency with economizer % 

Flue gas resistance of economizer 

mbar 

62 

68 

74 

94.4 

2.5 

79 

88 

95 

94.4 

2.5 

Flue gas temperature after economizer °C 140 140 140 140 140 140 140 

102 

116 

120 

94.4 

2.5 

131 

144 

156 

94.4 

2.5 

154 

171 

186 

94.4 

2.5 

154 

171 

186 

94.4 

2.5 

272 

299 

315 

94.4 

2.5 




Model 2000 2500 3000 4000 5000 6000 8000 

Boiler length with insulation, without burner, 

without economizer 

mm 

3750 3950 4150 4500 4950 5150 5650 

Boiler length with economizer, 

without insulation, without burner 

mm 

4700 4900 5100 5450 5900 6100 6600 

Boiler width with insulation, with pump mm 2450 2550 2600 2700 2800 2900 3100 

Boiler height with insulation, with fittings mm 2700 2800 2850 3075 3250 3400 3650 

Insulation thickness mm 120 120 120 120 120 120 120 

Flue gas outlet diameter (ducting, and 

mm 

chimney diameters to be sized for site application 

350 450 450 550 550 650 650 



47.4 57.3 65.9 88.4 108.3 129.2 169.7 

Water content operating liters 2750 4350 4850 5850 7200 8200 10000 

flooded liters 4600 5450 6000 7250 9000 10300 12500 

Transport weight without 

burner and without Economizer 

including accessories 

at 10 bar(g) kg 



Manhole (size) mm 

(quantity) 

Inspection opening (size) mm 

Fittings 

(quantity) 

5000 

5500 

6000 

420 x 

320 

1 

220 x 

150 

2 

Model 2000 2500 3000 4000 5000 6000 8000 

1 Flue gas tube cleaning equipment YES YES YES YES YES YES YES 

1 Main steam valve 10 bar(g) 

13 bar(g) 

16 bar(g) 

DN80 

DN65 

DN65 

6000 

6500 

7000 

420 x 

320 

1 

220 x 

150 

2 

DN80 

DN80 

DN65 

7000 

7500 

8000 

420 x 

320 

1 

220 x 

150 

2 

DN100 

DN80 

DN80 

8000 

8500 

9500 

420 x 

320 

1 

220 x 

150 

2 

DN100 

DN100 

DN80 

9500 

10500 

11500 

420 x 

320 

1 

220 x 

150 

2 

DN100 

DN100 

DN100 

11000 

12000 

13500 

420 x 

320 

1 

220 x 

150 

2 

DN125 

DN100 

DN100 

1 Vent valve DN25 DN25 DN25 DN25 DN25 DN25 DN25 

2 Safety valves* 10 bar(g) 

13 bar(g) 

16 bar(g) 

DN80 

DN65 

DN65 

DN80 

DN80 

DN65 

DN100 

DN80 

DN80 

DN100 

DN100 

DN80 

DN100 

DN100 

DN100 

DN125 

DN100 

DN100 

2 Isolation valves DN20 DN20 DN20 DN20 DN20 DN20 DN20 

2 Reflection indicators fixing centre (mm) 420 420 420 420 420 420 420 

1 Blow down sight glass drain (screwed) 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 

1 Desalting shut off valve DN15 DN15 DN15 DN15 DN15 DN15 DN15 

1 Blow down shut off valve DN40 DN40 DN40 DN40 DN40 DN40 DN40 

1 Blow down ball valve DN40 DN40 DN40 DN40 DN40 DN40 DN40 

1 Pressure gauge with three-way valve (screwed) 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 

Water level control type 

ON/OFF 

1 Feed water valve DN25 DN32 DN32 DN32 DN40 DN40 DN50 

1 Feed water non-return valve/anti syphon valve DN25 DN32 DN32 DN32 DN40 DN40 DN50 

1 Strainer pump (suction side) DN40 DN50 DN50 DN50 DN65 DN65 DN80 

1 Ball valve pump (suction side) DN40 DN50 DN50 DN50 DN65 DN65 DN80 

1 Pressure gauge (pump) with shut off valve (screwed) 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 

1 Feed water pump 10 bar(g) 

CR CR CR CR CR CR CR 

Motor rating 

kW 

2.2 

2.2 

3.0 

4.0 

4.0 

5.5 

5.5 



Motor rating 

kW 

2.2 

3.0 

4.0 

4.0 

4.0 

7.5 

7.5 



Motor rating 

kW 

3.0 

4.0 

4.0 

5.5 

7.5 

7.5 11.0 

14500 

15500 

16500 

420 x 

320 

1 

220 x 

150 

2 

DN150 

DN125 

DN125 

DN150 

DN125 

DN125 


43



Technical data boiler without economizer 

Model 10000 12000 14000 16000 18000 20000 


kg/h 10000 12000 14000 16000 18000 20000 

Operating output 




6520 

6542 

6557 

7824 

7850 

7868 

9128 

9159 

9180 

10432 

10467 

10491 

11736 

11776 

11802 

13040 

13084 

13114 

Boiler efficiency Natural gas at 10 bar(g) % 



Boiler efficiency at 10 bar(g) % 

Diesel Oil (35 secs) at 13 bar(g) % 



89.9 

89.4 

89.2 

89.9 

89.4 

89.1 

Flue gas resistance mbar 11.0 10.0 10.0 10.0 11.0 11.0 

Model 10000 12000 14000 16000 18000 20000 

Natural gas calorific value kJ/Nm 3 36000 36000 36000 36000 36000 36000 

Fuel consumption at at 10 bar(g) Nm 3 /h 



725.7 

732.2 

728.0 

89.8 

89.5 

89.1 

89.89 

89.5 

89.0 

871.4 

877.4 

883.6 

89.8 

89.4 

89.0 

89.9 

89.5 

89.0 

1016.7 

1024.6 

1031.7 

89.9 

89.4 

89.0 

89.8 

89.5 

89.0 

1162.1 

1171.1 

1179.3 

89.6 

89.2 

89.0 

89.7 

89.2 

89.0 

1310.0 

1320.1 

1329.4 

89.9 

89.4 

89.0 

89.9 

89.4 

89.0 

1451.5 

1464.5 

1474.7 




8084 

8156 

8110 

9707 

9774 

9843 

11327 

11414 

11494 

12946 

13046 

13137 

14594 

14706 

14809 

16170 

16315 

16429 





7253 

7318 

7351 

8713 

8771 

8831 

10165 

10245 

10315 

11604 

11708 

11788 

13098 

13020 

13291 

14505 

14635 

14735 


Model 10000 12000 14000 16000 18000 20000 

Diesel Oil calorific value kJ/kg 42700 42700 42700 42700 42700 42700 

Fuel consumption at 

full capacity 




611.5 

617.0 

613.6 

734.3 

739.5 

744.7 

856.8 

863.5 

869.7 

979.3 

987.0 

994.0 

1103.8 

1112.4 

1120.3 

1223.2 

1234.2 

1245.9 




8259 

8333 

8287 

9916 

9987 

10057 

11571 

11662 

11745 

13226 

13329 

13424 

14907 

15023 

15129 

16520 

16667 

16756 





7253 

7318 

7359 

8703 

8771 

8860 

10154 

10234 

10338 

11617 

11695 

11788 

13084 

13202 

13291 

14505 

14635 

14735 

Technical data with integral economizer, fuel natural gas and low sulphur fuel oil 

Model 10000 12000 14000 16000 18000 20000 

Additional operating output 

with economizer 




Boiler efficiency with economizer % 

Flue gas resistance of economizer 

mbar 

326 

366 

382 

94.4 

2.5 

Flue gas temperature after economizer °C 140 140 140 140 140 140 

399 

432 

464 

94.4 

2.5 

465 

513 

557 

94.4 

2.5 

522 

586 

637 

94.4 

3.0 

622 

686 

716 

94.4 

3.0 

652 

732 

796 

94.4 

3.0 




Model 10000 12000 14000 16000 18000 20000 

Boiler length with insulation, without burner, 

without economizer 

mm 

6150 6550 6850 7150 7350 7850 

Boiler length with economizer, 

without insulation, without burner 

mm 

7050 7450 7750 8050 8250 8750 

Boiler width with insulation, with pump mm 3300 3400 3600 3700 3800 3900 

Boiler height with insulation, with fittings mm 3925 4125 4350 4425 4625 4725 

Insulation thickness mm 120 120 120 120 120 120 

Flue gas outlet diameter (ducting, and 

mm 

chimney diameters to be sized for site application 

800 850 950 1000 1000 1000 



211.8 284.5 324.9 381.3 410.7 467.6 

Water content operating liters 14200 15900 17600 20000 23000 24250 

flooded liters 18000 20350 22700 25000 29200 31400 

Transport weight without 

burner and without Economizer 

including accessories 




Manhole (size) mm 

(quantity) 

Inspection opening (size) mm 

Fittings 

(quantity) 

17500 

18500 

19500 

420 x 

320 

1 

220 x 

150 

2 

21500 

21500 

24000 

420 x 

320 

1 

220 x 

150 

2 

25000 

26000 

28000 

420 x 

320 

1 

220 x 

150 

2 

28000 

29000 

31000 

420 x 

320 

1 

220 x 

150 

2 

30000 

31000 

35000 

420 x 

320 

1 

220 x 

150 

2 

33000 

35000 

39000 

Model 10000 12000 14000 16000 18000 20000 

1 Flue gas tube cleaning equipment YES YES YES YES YES YES 

1 Main steam valve 10 bar(g) 

13 bar(g) 

16 bar(g) 

DN150 

DN150 

DN125 

DN200 

DN150 

DN150 

DN200 

DN200 

DN150 

DN200 

DN200 

DN150 

DN200 

DN200 

DN200 

1 Vent valve DN25 DN25 DN25 DN25 DN25 DN25 

2 Safety valves* 10 bar(g) 

13 bar(g) 

16 bar(g) 

DN50/80 

DN40/65 

DN40/65 

DN50/80 

DN50/80 

DN40/65 

DN65/100 

DN50/80 

DN50/80 

DN65/100 

DN65/100 

DN50/80 

DN65/100 

DN65/100 

DN50/80 

420 x 

320 

1 

220 x 

150 

2 

DN250 

DN200 

DN200 

DN65/100 

DN65/100 

DN65/100 

2 Isolation valves DN20 DN20 DN20 DN20 DN20 DN20 

2 Reflection indicators fixing centre (mm) M=420 M=420 M=420 M=420 M=420 M=420 

1 Blow down sight glass drain (screwed) 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 

1 tds shut off valve DN15 DN15 DN15 DN15 DN15 DN15 

1 Blow down shut off valve DN40 DN40 DN40 DN40 DN40 DN40 

1 Blow down ball valve DN40 DN40 DN40 DN40 DN40 DN40 

1 Pressure gauge with three-way valve (screwed) 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 

Water level control type 

MODULATING 

1 Feed water valve DN50 DN50 DN65 DN80 DN80 DN80 

1 Feed water non-return valve/anti syphon valve DN50 DN50 DN65 DN80 DN80 DN80 

1 Strainer pump (suction side) DN80 DN80 DN100 DN125 DN125 DN125 

1 Ball valve pump (suction side) DN 80 DN 80 DN100 DN125 DN125 DN125 

1 Pressure gauge (pump) with shut off valve (screwed) 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 


CR CR CR CR CR CR 

Motor rating 

kW 

11.0 11.0 11.0 11.0 15.0 15.0 



Motor rating 

kW 

11.0 11.0 15.0 15.0 18.5 18.5 



Motor rating 

kW 

15.0 15.0 18.5 18.5 18.5 22.0 


45


THSD-I E 

Industrial Steam Boiler for Gas and Oil Firing 


Technical data 

THSD-I E without economiser 

ESBH-H without economizer 

Hoval 

Boiler 

12 Boiler 

base 

23 Boiler Front reversal base chamber 

Hinged front door 

3 Front reversal chamber 

4 Flue gas outlet 

5 Hinged Explosion/cleaning front door door (flue side) 

46 Flue Inspection gas outlet openings (water side) 





THSD-I E 

Model 

L 

B 

H 

H 1 

8 tds shut off valve 






14 Feed water inlet 

15 Feed water valve(s) 

H 2 

L 3 

L 4 

L 1 



18 Feed water pump(s) 


20 Burner 5 

21 Vent valve 

22 Condensate drainage 20 Burner 5 

23 Flame viewing port 

Main dimensions Boiler base Flue gas 

15 Feed water valve(s) 

connection 6 

D 

2000 3750 2450 2700 2250 Main 1175dimensions 1990 300 700 2300 400 1175Boiler 160base 1750 350 Fuel gas connection 6 

Model 2500 3950 L 2550 B 2800 H 2350 1225 H 2 

2090 H 4 

300 D 700 L 3 

2500 L 4 

400 L 1 

1225 L 2 

160 B 1825 

1 

B 450 2 

H 3 

D 1 

3000 

2000 

4150 2600 

3750 

2850 

2450 

2400 

2700 

1250 

2250 

2140 

1175 

300 

1990 

700 

300 

2700 

700 

400 1250 160 1850 

2300 400 1175 

450 

160 1750 350 

4000 4500 2700 3075 2550 1350 2240 300 700 3000 400 1350 160 1950 550 

2500 3950 2550 2800 2350 1225 2090 300 700 2500 400 1225 160 

5000 4950 2800 3250 2650 1400 2340 300 700 3400 400 1400 160 2000 550 

1825 450 

3000 6000 

4000 8000 

10000 

5000 

5150 4150 2900 

5650 4500 3100 

6150 3300 

4950 

2600 3400 

2700 3650 

3925 

2800 

2850 2800 

3075 2925 

3200 

3250 

2400 1450 

2550 1550 

1700 

2650 

1250 2440 

1350 2640 

2840 

1400 

2140 300 

2240 300 

350 

2340 

700 300 

700 300 

850 

300 

3600 700 

4100 700 

4500 

700 

4002700 1450400 160 12502100 

4003000 1550400 160 13502200 

475 1700 200 2350 

3400 400 1400 

160650 

160650 

800 

160 

1850 

1950 

2000 

450 

550 

550 

12000 6550 3400 4125 3300 1750 2940 350 850 5000 475 1750 200 2400 850 

6000 5150 2900 3400 2800 1450 2440 300 700 3600 400 1450 160 

14000 6850 3600 4350 3500 1850 3140 350 850 5000 475 1850 200 2500 950 

2100 650 

8000 16000 

10000 18000 

20000 

12000 

7150 5650 3700 

7350 6150 3800 

7850 3900 

6550 

3100 4425 

3300 4625 

4725 

3400 

3650 3600 

3925 3700 

3800 

4125 

2925 1900 

3200 1950 

2000 

3300 

1550 3240 

1700 3340 

3440 

1750 

2640 350 

2840 350 

350 

2940 

850 300 

850 350 

850 

350 

5500 700 

5500 850 

6000 

850 

4754100 1900400 200 15502550 

4754500 1950475 200 17002650 

475 2000 200 2700 

5000 475 1750 

1601000 

2001000 

1000 

200 

2200 

2350 

2400 

650 

800 

850 

1 

up to THSD-I E (4000) 100mm less 

Design pressure 10, 13 and 16 bar 

2 

14000 6850 3600 4350 3500 1850 3140 350 850 5000 475 1850 200 2500 950 

up to THSD-I E (4000) 200mm less 

(overpressure) 

3 

up 16000 to THSD-I E (4000) 7150 100mm 3700 less, 4425 from THSD-I 3600 E (12000) 1900 100mm 3240 more350 Other 850 models 5500 available 475 for different 1900 working 200 2550 1000 

4 

up 18000 to THSD-I E (4000) 7350 200mm 3800 less, 4625 from THSD-I 3700 E (12000) 1950 100mm 3340 more350 pressures. 850 5500 475 1950 200 2650 1000 

5 

Burner shown is monobloc type. Width/height may alter with fabricated Transport dimensions for pressure level 10 bar. 

20000 7850 3900 4725 3800 2000 3440 350 850 6000 475 2000 200 

wind box type burner. 

Add 100mm to H 1 for crane hooks. 

2700 1000 

6 

Ducting and chimney diameters to be sized for site application 

1 

up to ESBH-H (4000) 100mm less 

Pos. 14 up to THSD-I E (4000) 400mm less 

Dimensions 2 

up to ESBH-H incl. 120 (4000) mm 200mm insulation lessthickness 

2-8 

8 tds shut off valve 







3 

up to ESBH-H (4000) 100mm less, from THSD-I E (12000) 100mm more 

4 

up to ESBH-H (4000) 200mm less, from THSD-I E (12000) 100mm more 

5 

Burner shown is monobloc type. Width/height may alter with fabricated wind box type burner. 

6 

Ducting and chimney diameters to be sized for site application 

46 ECOTHERM Steam Solutions 

L 2 

B 1 



18 Feed water pump(s) 


21 Vent valve 

22 Condensate drainage 

23 Flame viewing port 

B 2 

H 3 

D 1 

Pos. 14 up to ESBH-H (4000) 400mm less 

Dimensions incl. 120 mm insulation thickness 

Design pressure 10, 13 and 16 bar(g) (overpressure) 

Other models available for different working pressures. 

Transport dimensions for pressure level 10 bar(g). 

Add 100mm to H1 for crane hooks.



60 

unit 

g/h 

/min 

W 

W 

tes 

g/h 

3 /h 

r 

kg/s 

m 

bar 

50 Hz 

Type of Boiler DG 160 DG 260 DG 360 DG 460 DG 560 2 x DG 560 3 x DG 560 4 x DG 560 

Unit type Single unit Single unit Single unit Single unit Single unit Double unit Double unit Double unit 

Steam generating capacity 160 kg/h 260 kg/h 360 kg/h 460 kg/h 560 kg/h 1120 kg/h 1680 kg/h 2240 kg/h 

capacity per Minute 2.6 kg/min 4.3 kg/min 6 kg/min 7.6 kg/min 9.3 kg/min 18,6 kg/min 27.9 kg/min 37.2 kg/min 

Thermal load 110 kW 175 kW 245 kW 315 kW 400 kW 800 kW 1200 kW 1600 kW 

Thermal output 105 kW 170 kW 235 kW 300 kW 380 kW 760 kW 1140 kW 1520 kW 

Max. operating pressure 13 bar(g) 13 bar(g) 13 bar(g) 13 bar(g) 13 bar(g) 13 bar(g) 13 bar(g) 13 bar(g) 

Warming up time 8 Minutes 8 Minutes 8 Minuten 8 Minutes 8 Minutes 8 Minutes 8 Minutes 8 Minutes 

Max. oil throughput* 9.2 kg/h 14.6 kg/h 20.5 kg/h 26.5 kg/h 32.6 kg/h 65.2 kg/h 97.8 kg/h 130.4 kg/h 

Max. gas throughput** 10.6 m3/h 17 m3/h 23.7 m3/h 30.5 m3/h 37.7 m3/h 75.4 m3/h 113.0 m3/h 150.7 m3/h 

Gas flow pressure min. 20 mbar 20 mbar 20 mbar 20 mbar 20 mbar 20 mbar 20 mbar 20 mbar 

Gas connection 1“ 1“ 1“ 1“ 1“ 1“ 1“ 1“ 

Exhaust mass flow 0.05 kg/s 0.08 kg/s 0.11 kg/s 0.14 kg/s 0.18 kg/s á 0.18 kg/s á 0.18 kg/s á 0.18 kg/s 

Exhaust stack D 150 mm 300 mm 300 mm 300 mm 300 mm á 300 mm á 300 mm á 300 mm 

Flue draft min. 0.15 mbar 0.15 mbar 0.15 mbar 0.15 mbar 0.1 mbar á 0.1 mbar á 0.1 mbar á 0.1 mbar 

El. connection 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 400 V / 50 Hz 

El. power consumption 2,4 kW 3,2 kW 3,2 kW 4,0 kW 4,0 kW 8,0 kW 12.0kW 16.0 kW 

Total weight 580 kg 700 kg 800 kg 1200 kg 1300 kg á 1300 kg á 1300 kg á 1300 kg 

Boiler height B 1580 mm 1756 mm 2043 mm 2043 mm 2140 mm 2140 mm 2140 mm 2140 mm 

Boiler width C 800 mm 800 mm 800 mm 930 mm 930 mm á 930 mm á 930 mm á 930 mm 

Boiler depth D 1380 mm 1620 mm 1620 mm 1750 mm 1750 mm á 1750 mm á 1750 mm á 1750 mm 

Installation height A 1250 mm 1363 mm 1563 mm 1563 mm 1563 mm 1563 mm 1563 mm 1563 mm 

Installation width C 690 mm 800 mm 800 mm 930 mm 930 mm 930 mm 930 mm 930 mm 

Installation depth I 780 mm 800 mm 800 mm 930 mm 930 mm 930 mm 930 mm 930 mm 

Exhaust stack H 850 mm 1438 mm 1438 mm 1438 mm 1438 mm 1438 mm 1438 mm 1438 mm 

The supplied data applies to the use of the exhaust economizer 

and feed water temperature of 90°C. 

*Oil - El: Hu = 11.86 kWh/kg 

** Natural Gas: Hu = 10.35 kWh/m 3 n 

kg 

m 

m 

mm 

m 

m 

* Height can be reduced up to 100 mms if requested. However, 

the transport with the forklift will then be limited. 

Connections 

Steam valve: 

Safety valve: 

Feed pump: 

Flange DIN 2633 DN20 

(exept DG 460 and 

DG 560: DN25) 

Flange DIN 2633 DN25 

(exept DG 460 and 

DG 560: DN32) 

1“ internal thread 

Clarification line: ¾“ external thread 

Technical data are subject to change. 

Alternatively: Flue gas connecting piece 

to the left or right side 


47


Feed Water Tanks 

N18 

N12 

N1 

N4 

N5 

N3 

Material: 

Mild Steel (P235GH) 


(AISI 304 / 316 / DUPLEX) 

Function: 

preparation of feed water 

for steam boiler 

Pre-heating, deaeration, 

chemical adding, 

N13 

condensate recovery 

Design: 

Horizontal Feed Water tank 

pressureless without 

deaerator (smaller plants) 

Horizontal Feed Water tank 

pressurized with vertical 

trickling deaerator 

N10 

(bigger plants) 

Conditions: Max. operating pressure 

0.5 bars, test pressure 2 bars 

Max. operating temperature 120°C 

Flange Standards: acc. to DIN-EN 1092-1, PN6 / 16 / 40 

Standards: The product fully complies with the requirements of the European Pressure 

Certification: 

H 

L2 

L1 L 

Directive 97 / 23 / EC and carries the CE mark when so required. 

acc. to EN 10204 certifiable as standard and certificates are available on request. 

Note: All certification / inspection requirements must be stated at the time of order replacement 

N9 

N2 

N17 

N7 

N7 

D 

N6 

N16 

N11 

Type ESWB 1 2 3 4 6 8 10 15 20 

Volume [m 3 ] 1 2 3 4 6 8 10 16 20 

D [mm] 800 1,100 1,200 1,350 1,500 1,550 1,650 2,100 2,200 

L [mm] 1,500 1,750 2,250 2,500 3,000 4,000 4,000 4,000 5,000 

L1 [mm] 1,900 2,200 2,900 3,100 3,600 4,600 5,000 5,100 6,200 

L2 [mm] 800 1,200 1,200 1,300 1,500 2,000 2,100 2,000 2,500 

H [mm] 1,100 1,500 1,600 1,750 1,900 2,000 2,000 2,500 2,600 

Inspection Flange DN 200, PN 6 400, PN 6 500, PN 6 

Pressure sensor N2 G if required ½ 

Safety valve N3 DN sizing in accordance with required heating capacity 

Vacuum breaker N4 DN sizing in accordance with required heating capacity 

Deaerator dome N5 DN 250 350 350 450 550 550 650 800 1000 

Overflow N6 DN sizing in accordance with flowrate 

Water level N7 DN 15 15 15 15 15 15 15 15 15 

Feedwater N9 DN 32 40 50 65 80 100 100 150 150 

Drain N10 DN 25 25 32 32 32 40 40 50 50 

Heating steam inlet N11 DN sizing in accordance with required heating capacity 

Stand-by N12 DN 40 40 50 50 50 80 80 80 80 

Thermometer N13 G 1/2 

Thermostat N16 G sizing in accordance with required mechanical heating-up controller 

Heating steam inlet N17 DN sizing in accordance with required heating capacity 

condensate N18 DN 25 40 40 50 50 65 65 80 80 

Sizing in accordance to customer requirements 

Subject to change without change 



Deaerators 

N1 

Material: 

Stainless Steel (AISI 316 / DUPLEX) 

Function: 

preparation of feed water for steam boiler 

Deaeration of fresh water and condensate, removal of gases. 

Design: 

Pressurized vertical trickling deaerator 

Conditions: 

Max. operating pressure 0.5 bars, test pressure 2 bars 



Standards: 

The product fully complies with the requirements of the European Pressure 

Equipment Directive 97 / 23 / EC and carries the CE mark when so required. 


acc. to EN 10204 certifiable as standard and certificates are available 

on request. 

Note: All certification / inspection requirements must be stated at the time 

of order replacement 

H 

N2 

N5 

N3 

N4 

D 

Type EDD 250 350 450 550 650 800 1000 

Deaerator Capacity [m 3 /h] 0.5-1.6 1.7-3.0 3.1-5.0 5.1-8.0 8.1-11.0 11.1-15.0 15.1-20.0 

D [mm] 250 350 450 550 650 800 1000 

H [mm] 1150 1250 1300 1300 1800 1800 2000 

Gas vent N1 DN 15 20 25 32 32 40 50 

Condensate inlet N2 DN 25 40 40 65 80 100 125 

Make-up water inlet N3 DN 15 20 25 32 40 40 50 

Pressure gauge connection N4 G 1/2 

Sensing line N5 G 1/2 




49


Water Softeners 

Material: 

Function: 

Design: 

Conditions: 

Connecting 

Standards: 

Standards: 


Note: 

Electrical rating: 

pressure vessel (softener): PE liner reinforced 

with epoxydic resin and fibreglass 

Valve body: brass 

Brine tank, chemical dosing tank: PVC storage tank 

conditioning of fresh water 

two vertical pressure vessels fitted with 

control head, water meter, brine tank, 

chemical dosing tank, equiped with interconnecting 

stainless steel or plastic piping and accessories 

ready for installation, skid mounded on steel 

coated base frame. 

Unit pre-wired for easy installation and operation, 

ready for start-up 

inlet water pressure 2,0 -6,0 bar(g) 

Operating temperatures 1-40°C 

L 

BSP / NPT treated 

The product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC 

and carries the CE mark when so required. 


All certification / inspection requirements must be stated at the time of order replacement 

230V, 50-60Hz, IP44 

H 

N2 

W 

N1 

Type ASW 100 180 240 320 400 500 1200 1800 2400 

nominal capacity m³x°dH 100 180 240 320 400 400 1200 1800 2400 

filling for one ion-exchange tank l 25 45 60 80 100 125 300 450 600 

max. admiss. flow m³/h 1.0 1.5 2.0 3 4.0 6 10 15 20 

salt consumption per reg. kg 6 10,8 14,4 19,2 24 30 72 108 144 

hose nozzle ½“ for woven hose 13 x 3.5 

thread connection IT 1“ NPT 

rinse water connection 

hose 13 x 3.5 

NPT 

capacity of brine tank l 100 100 100 150 150 200 500 500 1000 

chemical dosing capacity l 60 60 100 100 100 100 2x100 2x100 2x100 

dosing pump max. admiss. Flow l/h 2.5 2.5 2.5 4.3 4.3 4.3 2x4.3 2x4.3 2x4.3 

pipe connection in/out N1/N2 BSP 1" 1" 1" 1" 1" 1 1/2" 2" 2" 2" 

height 

mm 1,500 1,500 1,800 2,000 2,000 2,200 2,500 2,500 2,500 

dimensions of 

width mm 1,000 1,000 1,100 1,300 1,300 1,500 1,900 1,900 2,300 

the unit HxWxD 

depth mm 800 800 1000 1,200 1,200 1,400 1,800 1,800 2,200 

1 

Noted in the past at °dH, changing factor: 1 mmol/l = 5,6 °dH (German hardness). 

Selection of water softener depends always on water hardness. 

Therefore water analysis at the time of order placement is required. 

(The higher the water hardness the bigger the nominal capacity of 

water softener and vice versa) 





Condensate Return Stations 

N1 

N1 

E 

N2 

N5 

C 

D 

A 

B 

Material (Tank): 


Stainless Steel (AISI 304 / 316 / DUPLEX) 

Function: 

Return of condensate from consumers back to feed water tank 

Design: 

Horizontal condensate tank pressureless, fitted with pumps, level control, control panel, 

for easy installation and operation, ready for start-up 

Conditions: 

Max. operating pressure 0.5 bars, test pressure 2 bars 



Standards: 

The product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC and carries the 

CE mark when so required. 




Connections 

Condensate 

N5 

A B C D E 

capacity 

Model N1 

N2 

N3 

N4 

Pumped mm mm mm mm mm 

m³/h 

Vessel inlet Vent Overflow Drain 

condensate 

ECR-500 DN40 DN50 DN25 1" BSP DN32 2,400 1,000 1,700 900 2,000 0.5-1 

ECR-1,000 DN65 DN80 DN40 1" BSP DN32 2,400 1,100 1,700 1,100 2,100 1-2 

ECR-1,500 DN65 DN80 DN40 1" BSP DN40 2,600 1,300 1,800 1,200 2,100 2-3 

ECR-2,000 DN65 DN100 DN40 DN40 DN65 2,800 1,500 2,000 1,400 2,200 3-4 






51


Clean Steam Generators 

H 

W 

L 

Material: 

Function: 

Design: 

Conditions: 

Stainless Steel (AISI 316 Ti / DUPLEX) 

generation of clean steam quality by using steam heat exchanger or electrical heating element as a primary heating energy for high 

steam demands. 

The unit comprises of clean steam tank, heat exchanger or electric heating element, frame, pumps, valves, level controls and control 

panel. Unit is pre-piped, pre-wired, tested, mounted on a structural steel base and delivered as completely package unit ready for 

installation and operation with simple connection. 

Sizes, capacities, inlet- and outlet connections will be designed according to customer requirements. 

Also single tanks are available on request 

Standard operating pressures from 1 to 5 bar(g) 

Capacities from 250kg/h – 4,000kg/h 

Higher pressure rates and capacities on request 


Standards: 

The product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC and carries the CE mark. 

Model No. 

Capacity* 

kg/h 

Design pressure* 

bar(g) 

Dimensions without EFWT 

(L x W x H in mm) 

ECSG-.-250 250 5 3,200 x 1,500 x 2,000 200 

ECSG-.-500 500 5 3,750 x 1,500 x 2,300 400 

ECSG-.-620 620 5 4,200 x 1,500 x 2,500 500 

ECSG-.-750 750 5 4,200 x 1,500 x 2,500 600 

ECSG-.-1000 1,000 5 4,500 x 1,500 x 2,600 800 

ECSG-.-1,500 1,500 5 4,000 x 1,750 x 3,200 1,200 

ECSG-.-2,000 2,000 5 5,500 x 1,750 x 3,500 1,600 

ECSG-.-3,000 3,000 5 6,000 x 2,000 x 3,800 2,400 

ECSG-.-4,000 4,000 5 7,000 x 2,000 x 4,000 3,200 

EFWT 

liters 

* Other/higher capacities and operating pressures are available on request. 

ECSG-S/E = ECOTHERM Clean Steam Generator, S..Steam or E..Electric 

EFWT = ECOTHERM Feed Water Tank 





Electric Clean Steam Generators 

Material: 

Stainless Steel (AISI 316 Ti) 

Function: 

generation of clean steam quality by using an electrical heating 

element as a primary heating energy for low steam demands. 

Design: 

The unit comprises of clean steam tank, electric heating element, 

frame, pumps, valves, level controls and control panel. Unit is prepiped, 

pre-wired, tested, and delivered as completely package unit 

ready for installation and operation with simple connection. 

Conditions: 

Standard operating pressures up to 12 barg 

Capacities from 28kg/h – 114kg/h 

For higher steam demands several units can be combined together 


Standards: 

The product fully complies with the requirements of the European 

Pressure Equipment Directive 97 / 23 / EC and carries the CE mark. 

Certification: acc. to EN 10204 certifiable as standard and certificates are available 

on request. 

Note: All certification / inspection requirements must be stated at the 

time of order replacement 

W 

H 

D 

Model No. 


kg/h 

Thermal output 

kW 

Dimensions 

L x W x H in mm 

Protection 

Ampere 

EDI 20 28 20 659 x 921 x 1,425 35 

EDI 40 57 40 659 x 921 x 1,425 63 

EDI 53 76 53 659 x 1,205 x 1,425 80 

EDI 80 114 80 659 x 1,205 x 1,425 125 

Steam Separators 

Material: 


Stainless Steel (AISI 304 / 316) 

Function: In the steam contained water drops are thrown at a baffle and therefore 

steam will be dried. 

Design: 

vertical compact design, long life, low pressure loss 

Conditions: 

Max. operating pressure 10 barg 


Flange Standards: acc. to DIN-EN 1092-1, PN 16 / 40 

Standards: 

The product fully complies with the requirements of the European Pressure 

Equipment Directive 97 / 23 / EC and carries the CE mark when so required. 

Certification: acc. to EN 10204 certifiable as standard and certificates are available on request. 

Note: All certification / inspection requirements must be stated at the time of 

order replacement 

Model No. N1/N2 

D 

B 

H 

N3 

N4 Capacity 

mm mm mm BSP BSP (kg/h) 

ESS-1 DN15 114.3 250 450 1/2" 1/2" 80 

ESS-2 DN20 114.3 250 450 1/2" 1/2" 160 

ESS-3 DN25 114.3 250 450 1/2" 1/2" 230 

ESS-4 DN32 168.3 300 500 1/2" 1/2" 330 

ESS-5 DN40 168.3 300 500 1/2" 1/2" 600 

ESS-6 DN50 168.3 300 500 1/2" 1/2" 900 

ESS-7 DN65 323.9 450 600 1" 1/2" 1400 

ESS-8 DN80 323.9 450 600 1" 1/2" 2400 

ESS-9 DN100 323.9 450 600 1" 1/2" 3800 

ESS-10 DN125 355.6 500 800 1" 1/2" 5000 

ESS-11 DN150 355.6 500 800 1" 1/2" 8000 

ESS-12 DN200 355.6 500 800 1" 1/2" 17000 

ESS-13 DN250 406.4 550 1,000 1" 1/2" 22000 

ESS-14 DN300 406.4 550 1,000 1" 1/2" 32000 

H 

N1 

D 

B 

N4 

N3 

N2 


53


Sample Coolers 

Material: Stainless Steel (AISI 316L) 

Function: 

cooling of sample water from steam boilers and feed water tanks 

Design: 

cooling water body with internal coil 

Conditions: 

Max. operating pressure coil 40 barg, body 10 barg 

Max. operating temperature coil 200°C, body 80°C 



acc. to EN 10204 certifiable as standard and certificates are availa 

ble on request. 

Note: All certification / inspection requirements must be stated at 

the time of order replacement 

H 

N1 

N3 

D 

N3 

N2 

N3 

A mm 206 

B mm 127 

D mm 104 

Cooling water inlet and 

outlet connections N1/N2 

Sample tube inlet and 

outlet connections N3 

1/2" BSP 

8mm O/D 

A 

N4 

B 

H mm 623 

Drain tube connector N4 

3/8" BSP 

Vapour Heat Exchangers 

L 

N3 VENT 

IN 

N1 

D 

OUT 

N2 

DRAIN 

N5 

FLASH STEAM 

N4 

Material: Stainless Steel (AISI 316) 

Function: 

use the waste energy of generated flash steam (feed tanks, flash tanks, condensate recovery) to heat up fresh water. 

Design: 

horizontal compact design, long life, low pressure loss 

Conditions: 

Max. operating pressure 10 barg 


Flange Standards: acc. to DIN-EN 1092-1, PN 16 / 40 




Model No. Steam flow Heat load Water Flow 

(50 -> 70°C) 

Connection 

vapour steam 

(max. 15m/s) 

Connection 

Condensate 

Connection 

Secondary 

kg/h kW m³/h 

VHX-1 30 18.7 0.8 DN40 DN15 DN32 1400 50 

VHX-2 50 31.3 1.4 DN40 DN15 DN40 1400 50 

VHX-3 75 46.9 2.0 DN50 DN15 DN50 1400 50 

VHX-4 100 62.5 2.7 DN80 DN15 DN65 1500 80 

VHX-5 200 125 5.4 DN80 DN25 DN65 1500 80 

VHX-6 300 187.5 8.0 DN100 DN25 DN80 1500 100 

VHX-7 500 312.5 13.4 DN100 DN40 DN80 1500 100 

L 

D 


Find our references at 


Philosophy 

Our Mission 

ECOTHERM amazes its customers with individual solutions for hot water, steam and solar systems. 

Our Vision 

ECOTHERM is the leading brand for individual hot water, steam and solar solutions for hotels, hospitals 

and industry in Europe, Middle East, Asia, North Africa and Central America. 

Our Values 

Quality 

Individuality 

Innovation 

Partnership 

Sustainability 

Experience 

ECOTHERM 

Individual Heat Transfer Solutions 


55

20170426 Bro Steam ECOTHERM-e 

ECOTHERM 

Pressure reducing stations 

Control panels 

Steam boilers Burners Steam generators Economizers 

Feed water tanks 

individual turnkey steam solutions 

High capacity water heaters 

Condensate return stations Water treatment Clean Steam Generators Chimneys 

ECOTHERM Austria GmbH 

Karlingerstrasse 8 

4081 Hartkirchen, Austria 

Tel. +43 7273 6030-0 

Fax +43 7273 6030-15 

office@ecotherm.com 

www.ecotherm.com

BRO Steam Solutions

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