SKS Brochure for web - Neptronic

Each year, Neptronic ® produces thousands of humidifiers to meet
a diverse and expanding worldwide demand. Great care has been
taken to select materials which have proven themselves for their
exceptional performance in very harsh conditions.
The SKS series of steam-to-steam humidifiers offers an innovative
design and trouble free operation. Chemical free steam is produced
by using on-site boiler steam as a heat source. The wide modulation
range, high capacities and ease of servicing makes it the most
dependable and best humidifier on the market.
The attractive and innovative design of the SKS has a scale management system that
simplifies the maintenance of scale removal. The SKS also uses a patented water level
control called the AFEC ® System which is energy efficient.
Modulating Controls
The SKS are supplied with a linear actuated globe valve giving full modulating
control of low pressure steam.
Principle of Operation
The main energy source of
the SKS is either raw steam
under pressure or high temperature
hot water (HTHW)
from a central boiler.
The raw steam or HTHW
passes through the heat
exchanger of the humidifier, thus
providing the energy to produce
clean sterilized steam to be distributed
to the Air Handling Unit (AHU) system.

Features
• Capacities from 100-1250lbs/hr (45-568kg/hr) of clean steam
• Maximum boiler steam pressure 15 psi on standard unit
to 100 psi on special applications
• Plated copper and stainless steel heat exchangers are available
• Uses either “Domestic”, “RO” or “DI” water
• Comprehensive system of scale management
• AFEC ® system, mass measuring water sensor
• Temperature of the drain water is tempered below 140ºF (60ºC)
• Ease of servicing: cleans and re-installs within minutes
• BACnet remote communications protocol
Simplicity of Operation
and Service
Check
Unit indicates an abnormal
condition of operation
Fill
Water supply valve is open
Easy to remove
scale trap trays
Fan
Indication that fan is on
Steam
Humidifier is on and there is
a humidity demand
The SKS offers built in “scale trap trays”
located at the bottom of the evaporation
chamber. These trays can be accessed from
the top of the unit allowing for easy
maintenance and scale removal.
Self Cleaning System
A comprehensive system of scale management
where the supply of cold water at the sloped
bottom of the evaporation chamber forces
the precipitated mineral deposits into the
“scale trap trays”.

The AFEC ® - System
The AFEC ® technology developed by the Neptronic ®
engineering team offers a unique, safe and energy efficient
control of boiling water and steam. The AFEC ® system consists
of a mass measuring water sensor, antifoam sensor,
electronic high temperature sensor, interactive LCD display
and microprocessor controller.
The AFEC ® system is unique because the water level
sensor cannot be falsely triggered by foam forming on the
surface of the boiling water.
The foam sensing probe which is unique to our design
automatically initiates a drain cycle upon foam formation.
Unlike other humidifiers the drain can be initiated only
when necessary without having a continuous skimming to
drain off expensive boiling water.
AFEC ® is designed to work equally well in deionized,
reverse osmosis or potable water.
Water and Temperature Probe
LCD Display & Control Panel
Power
Unit is connected to
power source
Clean steam outlet(s)
Drain
Unit is in drain cycle
Control panel
Raw steam or HTHW
Inlet(s)
Condensate or return outlet(s)
Power supply
Electrical controls
Main drain outlet
Water supply inlet
Exceptional Reliability
Legs (Optional)
Skirt Panels (Optional)
The SKS was designed and built upon the Neptronic philosophy to provide high quality, safe, easily maintained and
energy efficient units. The fully enclosed cabinet eliminates the possibility of accidental contact with hot surfaces
and saves energy by virtue of the insulated panels. Adjustable legs (optional) can be provided in order to ensure
proper level when installed directly on the floor. Skirt panels are also available (see illustration above).

Steam Distribution Systems
In order to prevent the accumulation of condensation in air ducts, NEP has designed 2 basic configurations of A
steam distribution to provide the most economical solution for any particular application.
"Multi-Steam" System
The multi-steam system is to
be installed in critical locations,
particularly where
absorption distances are very
short (less than 3 feet/900mm)
or low air duct temperatures
are in effect.
"S.A.M.E2"
(steam absorption manifold)
The SAME2 is to be
installed where absorption
distances are short (less
than 5 feet/1500mm) and/or
low duct temperatures are in
effect.
Technical Information
Dimensions in. (cm)
Weight lbs (kg)
A
B
Model
A B C D Empty
4Ӓ In
[10.1] Operation
6Ӓ
[15.2]
12 í
[30.5]
“
C
D
SKS-100
SKS-130
SKS-190
SKS-290
SKS-390
SKS-500
SKS-690
SKS-950
SKS-1250
19.7
(50.0)
19.7
(50.0)
22.8
(57.9)
22.8
(57.9)
27.5
(69.9)
27.5
(69.9)
31.0
(78.7)
31.0
(78.7)
30.0
(76.2)
45.8
(116.3)
45.8
(116.3)
45.8
(116.3)
47.2
(120.0)
58.8
(149.3)
58.8
(149.3)
58.8
(149.3)
58.8
(149.3)
58.8
(149.3)
26.2
(66.5)
26.2
(66.5)
29.4
(74.7)
29.4
(74.7)
27.3
(69.3)
27.3
(69.3)
33.2
(84.3)
33.2
(84.3)
42.3
(107.2)
44.1
(112.0)
44.1
(112.0)
47.3
(120.1)
47.3
(120.1)
45.2
(114.8)
45.2
(114.8)
51.1
(128.8)
51.1
(128.8)
60.3
(153.2)
265
(120)
270
(122)
310
(141)
315
(143)
395
(179)
400
(182)
470
(213)
475
(215)
570
(259)
487
(221)
484
(220)
578
(263)
616
(280)
E 828
F (376)
822
(373)
1102
2.6“í(501)
[6.6] 1168
(531)
1574
(715)
G
SKS Neptronic
Heat Exchanger - SLP Stainless Steel 316 - Low Pressure (15 PSI Max.)
Model
Nb of
heat
exc.
SKS-100-SLP 1
SKS-130-SLP 1
SKS-190-SLP 1
SKS-290-SLP 1
SKS-390-SLP 1
SKS-500-SLP 1
SKS-690-SLP 1
SKS-950-SLP 1
SKS-1250-SLP 2
Output steam capacity lbs/hr (kg/h) for supply steam pressure
5 PSI
34.5kPa
33
(15)
43
(19)
63
(28)
97
(44)
130
(59)
167
(76)
230
(104)
317
(144)
417
(189)
8 PSI
55.1kPa
53
(24)
69
(31)
101
(46)
155
(70)
208
(94)
267
(121)
368
(167)
507
(230)
667
(303)
10 PSI
68.9kPa
67
(30)
87
(39)
127
(57)
193
(87)
260
(118)
333
(151)
460
(209)
633
(287)
833
(378)
12 PSI
82.7kPa
80
(36)
104
(47)
152
(69)
232
(105)
312
(142)
400
(182)
552
(251)
760
(345)
1000
(454)
15 PSI
103.4kPa
100
(45)
130
(59)
190
(86)
290
(132)
390
(177)
500
(230)
690
(314)
950
(432)
1250
(568)
Steam outlet
Qty & Ø
in (mm)
(1x) 3” (76)
(1x) 3” (76)
(1x) 3” (76)
(1x) 4” (108)
(1x) 4” (108)
(1x) 5” (133)
(1x) 5” (133)
(2x) 4” (108)
(2x) 5” (133)
Heat Exchanger - CHP Plated Copper High Pressure (100 PSI Max.)
Model
SKS-200-CHP
SKS-333-CHP
SKS-667-CHP
240˚F
(116˚C)
10 PSI
(69kPa)
40
(18)
65
(29)
130
(59)
Output steam capacity lbs/hr (kg/h) for supply steam pressure
250˚F
(121˚C)
15 PSI
(103kPa)
65
(30)
110
(50)
220
(100)
260˚F
(127˚C)
20 PSI
(137kPa)
85
(39)
145
(66)
290
(132)
280˚F
(138˚C)
35 PSI
(241kPa)
150
(69)
255
(116)
510
(231)
300˚F
(149˚C)
50 PSI
(344kPa)
220
(99)
365
(166)
730
(331)
320˚F
(160˚C)
75 PSI
(517kPa)
330
(150)
550
(249)
1100
(499)
338˚F
(170˚C)
100 PSI
(689kPa)
440
(200)
730
(333)
1465
(667)
Steam
outlet
Qty & Ø
in (mm)
(1x) 4” (108)
(2x) 4” (108)
(2x) 5” (133)

distributed by:
Manufacturer of actuators, actuated valves, controls, humidifiers and electric heaters.
Head Office
National Environmental Products Ltd
400 Lebeau Blvd, Montreal, Quebec H4N 1R6
Tel.: (514) 333-1433 Fax: (514) 333-3163
Toll Free (Canada/USA): 1-800-361-2308
U.S. Office
NEP Inc.
355 North Main Street, Suite 2
Hiawassee, Georgia 30546
Tel.: (954) 421-6216 Fax: (954) 421-8785
Middle East & Asia
NEP International
P.O. Box 125687, Dubai, UAE
Tel.: +97155 8825487 Fax: +9714 3426772
email: shyam@neptronic.com
Copyright 2012, Neptronic ® All Rights Reserved.
090001 _KS 271212