foam proportioning & loose equipment section index - Williams Fire ...

FOAM PROPORTIONING / LOOSE EQUIPMENT 


FOAM PROPORTIONING & LOOSE EQUIPMENT 

SECTION INDEX 

Williams’ “High Head” Through-the-Pump 1500 Portable Foam System....J2 

Williams’ Pressure Reducing Valve (WPRV/3, 3P, 4 & 4P)..............................J3 

Tank Farm Fire Fighting Foam System...............................................................J4 

Jet Ratio Controllers.........................................................................................J5-J6 

95 gpm Liquid Eductor...........................................................................................J7 

Spectrum Inline Eductors......................................................................................J8 

Spectrum “Double Action” By-Pass Eductor ....................................................J9 

PKW Dry Chemical Manifold Typical Layouts................................................. J10 

Manifolds for Hydro-Chem Systems.............................................................. J11 

Typical Hose Lay For Hydro-Chem Trailer mount Systems...................... J12 

PRODUCTS 409-745-3232 J1 

EMERGENCY 409-727-2347 

120108 

WWW.WILLIAMSFIRE.COM



Foam Proportioning & Loose Equipment 

Product 

Williams’ “High Head” Through-the-Pump 

1500 Portable Foam System 

Description: 

The Williams High Head Through-the-Pump 1500 Portable Foam System was designed to 

turn any pumper into a foam producing device. This unit will proportion 3% foam solution up 

to 1500 GPM. It can work against hydrant pressure up to 50 PSI with only 150 PSI discharge 

pressure. This economical system is easy to use and is completely water driven; there are no 

pumps or parts to maintain. Can’t get the foam to the pump Not a problem! The WTTP was 

designed to proportion foam from remote locations. 

FEATURES: 

• Operates against 33% Pump Suction Pressure. 

(Example: Master Pressure @150 PSI, Suction Pressure @ 50 PSI) 

• Proportions Class “B” Foam up to 1500 GPM at 3%. 

• Proportions Class “B” Foam up to 750 GPM at 6%. 

• Positive Shut-Off on Metering Valve. 

• Requires no maintenance. 

• Portable. 

• Water Powered. 

• Remote Proportioning Capabilities. 

• Check Valve Prevents Water from “Back Flowing“ 

into Concentrate Source. 

System Includes: 

• Base Unit with Jet Pump & Metering Valve. 

• 2.0” Clear Concentrate Pick-Up Hose. 

• 2.0” Valved Drum Stinger. 

ThunderStorm 

AFFF/ATC 

MATERIALS OF CONSTRUCTION: 

• Brass with Stainless Steel Trim. 

Notes: 

1. The following table is based on 150 psig operating pressure at the jet pump inlet. 

2. At 50 psi water pump inlet, maximum hose lay is 25 ft. of 3.0” hose. 

3. For drafting operations or pressure below 10 psi, use the 10 psi numbers shown. 

Maximum Hose Lay (ft) For Remote Proportioning Portable WATP 1500 System 

PUMP INLET PRESSURE 

Solution Rate 

10 PSI 

HOSE SIZE 

20 PSI 

HOSE SIZE 

30 PSI 

HOSE SIZE 

40 PSI 

HOSE SIZE 

1% 3% 6% 2.5” 3” 2.5” 3” 2.5” 3” 2.5” 3” 

30 12 850 1700 625 1250 400 775 200 325 

100 40 825 1675 600 1225 375 750 175 300 

400 160 80 800 1625 575 1175 350 725 150 275 

1000 400 200 750 1500 525 1050 325 650 125 250 

2000 750 375 650 1325 475 950 300 600 100 225 

4000 1500 750 525 1050 375 775 250 475 75 200 

PRODUCTS 409-745-3232 J2 

EMERGENCY 409-727-2347 

120108 





Product: 

Williams’ Pressure Reducing Valve 

(WPRV/3, 3P, 4 & 4P) 

Description: 

Maintains constant pre-set inlet pressure for use in conjunction with the 

Williams “High Head” Through/Around The Pump (or comparable) foam systems. 

Allows any firewater pump to produce suction side foam at virtually ANY positive 

inlet pressure. As such, the WPRV eliminates need for operator intervention to 

adjust intake gate valves due to suction pressure fluctuations as a result of changes 

in pump discharge flow. Thus, the added burden of assuring a maximum pump intake 

pressure (based on pump discharge pressure) associated with traditional suction 

side foam systems simply goes away. 

Additional Applications: 

Got a CAFS or Balanced Pressure system The WPRV can provide reduced pump inlet pressures to allow increased engine/PTO speed to 

maintain higher compressor or foam pump output when operating with positive pump inlet pressures. Installed within a discharge line, the WPRV 

maintains a preset pressure for hand lines or ground monitors independent of higher pump discharge pressures. 

Features: 

3 Modes of Operation: 

1. AUTOMATIC – Controls pre-set pressure from 15-115 PSI 

2. OPEN – Full flow to rated capacity 

WPRV/3 — 500 GPM w/ 7 PSI drop 

WPRV/4 — 1500 GPM w/ 20 PSI drop 

3. CLOSED — Bubble tight shut off 

• NFPA 1901, 14-6 COMPLIANT — Exclusive WPRV pilot control also provides bubble tight shut off to comply with NFPA 1901, 19-3.6, 

TIA 99-1 preventing foam solution back flow into a potable (hydrant system) water supply 

• PRESSURE RATINGS — 230 PSI Max. — 20 PSI Min. (Prevents reducing hydrant system pressures below 20 PSI) 

• INLET/OUTLET — WPRV/3: 2.5” NST; WPRV/4: 5” Storz 

Options: 

WPRV/3 & 3P (Portable) 

• “In-Truck” installation with panel mount control valve, standard 2.5” (F)NST swivel inlet w/ strainer and bleeder port 

• 3” (F) NST inlet w/strainer/outlet 

• 4” Storz inlet w/strainer/outlet WPRV/4 & 4P (Portable) 

• “In-Truck” installation with panel mount control valve, standard 5” Storz inlet w/strainer, adjustable intake relief, bleeder 

port and mounting hardware 

• Inlet intake relief valve & bleeder (4P) 

• 4” Storz inlet w/strainer/outlet 

• 6” (F)NST swivel outlet for direct mounting to pump intakes 

• Inlet/outlet pressure gauges 

• Carrying handle 

• 5” LDH X 10’ Long with 5” Storz couplings (200 PSI operating pressure) 

Materials of Construction: 

• WPRV/3 & 3P – Epoxy coated cast iron w/brass and stainless steel trim 

• WPRV/4 & 4P – Epoxy coated & anodized aluminum w/brass and stainless steel trim 

PRODUCTS 409-745-3232 J3 

EMERGENCY 409-727-2347 

120108 




Tank Farm Fire Fighting Foam System 

Flow 

Rate 

Solution % Jet Size # of Jet 

lays 

“Old Style” 2 x 6 Gun JRCP Hose Lay Comparison 

2.0” Hose 

Lay (ft) Time (min) 

2.50” Hose 


3.0” Hose 


6,000 1 2 1 N/A N/A 350 1.0 750 2.8 

6,000 1 1.5 2 440 1.4 1,300 6.1 2,550 17.4 

6,000 3 2 3 N/A N/A 75 0.3 150 0.6 

Flow 

Rate 

Solution % Jet Size # of Jet 

lays 

Ambassador JRCP Hose Lay Comparison 

2.0” Hose 


2.50” Hose 


3.0” Hose 


6,000 1 2 1 N/A N/A 350 1.0 750 2.7 

6,000 1 1.5 2 434 1.3 1,250 6.0 2,550 17.2 

6,000 3 2 3 N/A N/A 150 0.5 300 1.2 

PRODUCTS 409-745-3232 J4 

EMERGENCY 409-727-2347 

120108 





Product: 

Jet Ratio Controllers (Jet Pumps) 

Description: 

Utilizing a small amount of water, this high efficiency venturi-type 

device moves foam concentrate from a remote storage location to a 

matched Hydro-Foam nozzle. This all-hydraulic system dramatically 

simplifies and improves the logistics of moving the high quantities of foam 

concentrate required to extinguish a large flammable liquid fire. Foam 

concentrate is delivered from the Jet Ratio Controller to a matched 

Hydro-Foam nozzle via fire hose. Depending on nozzle and hose size, as well as the percentage of foam mixed (1% or 3%), the distance 

between the foam supply and Hydro-Foam nozzle can be up to 2,500 feet. 

Jet Ratio Controllers are supplied in conjunction with matched Hydro-Foam nozzles. Foam concentrate inlet on matched nozzle can 

be provided with 8 ft. of reinforced clear plastic hose with PVC shut-off valve, and/or metering valve “stinger”. This configuration allows foam 

concentrate to be drawn directly from a foam concentrate drum and then delivered efficiently to the nozzle via fire hose. 

Jet Ratio Controllers are provided with connections at three ports, designated as “inlet,” “discharge” and “suction.” Inlet (female swivel) 

and discharge (rigid male) has National Hose thread (NST, NH) connections with NPT (M) connection for the concentrate inlet port. Foam 

concentrate inlet is furnished with standard drum kit, which consists of flexible suction hose, rigid PVC “Stinger” pipe and shutoff valve. Jet 

Ratio Controller body is all brass construction. “H” series jet ratio controllers are available, on special order, for elevated nozzles, or other 

high back pressure applications. 

Typical Schematic 

ThunderStorm ® 

AFFF/ATC 

PRODUCTS 409-745-3232 J5 

EMERGENCY 409-727-2347 

120108 





1.5” 

INLET 

TYPICAL SCHEMATIC 

ThunderStorm ® 

AFFF/ATC 

MODEL 3% Flow Match 1% DISCHARGE “A” SUCTION “B” LENGTH “C” 

1.5JP24 750 GPM 2000 gpm 1.5” 1.5” 12.375” 

1.5JP30 1000 GPM 2500 gpm 1.5” 1.5” 12.375” 

2.0JP60 2000 GPM 5000 gpm 2.5” 2” 15.5” 

NOTE: 6% APPLICATIONS AVAILABLE UPON REQUEST 

PRODUCTS 409-745-3232 J6 

EMERGENCY 409-727-2347 

120108 




Foam Proportioning & Loose 

Equipment 

Product: 

95 gpm Liquid Eductor 

Description: 

The Elkhart 242-95 Eductor is a device used for educting a liquid concentrate 

solution into the water stream of 1-1/2” coupled fire hose lines. 

The Eductor is constructed of Armor-Lyte composite material with 

stainless steel components for resilience and durability. Armor-Lyte is 

impervious to the corrosion caused by high concentrate detergents, salt water and most chemicals. 

Each eductor comes equipped with a 1-1/2” “F” NH female swivel connector input, a 1-1/2” “M” NH male outlet and a 3/4” male Garden 

Hose Thread inlet for the concentrate pick-up hose. 

The 242-95 Eductor is factory calibrated for pump flow rates of 95gpm (356 lt/m). The Eductor comes complete with three different checkvalves 

for three different concentrate eduction rates. When attached, the Black checkvalve will educt at a 0.5% rate, the Purple checkvalve will 

educt at a 1% rate and the Green checkvalve is for educting at a 3% rate. 

To switch checkvalves on the eductor unit, gently grasp the checkvalve body with pliers or vise grips and unscrew. Carefully screw alternate 

checkvalve into eductor body, thread to “hand-tight”. There is no need to over tighten. 

The 242-95 Eductor can be used as either an “End-of-the-Line” or as a “Pump Mounted” System. The eductor is designed for a nominal 

operating pressure of between 75 and 150 psi. If proportioning 3%, the 242-95s are restricted to a maximum hose length of 150 feet between 

the eductor and nozzle. However, at ½% and 1% solution rates, the maximum hose lay with 1.50”ID fire hose goes to 200 feet when used with 

a 95+gpm nozzle. 

The Eductor comes complete with 

three different checkvalves for three different 

concentrate eduction rates. 

*Armor-Lyte is a registered trademark of 

Williams Fire and Hazard Control, Inc ® 120108 

PRODUCTS 409-745-3232 J7 

EMERGENCY 409-727-2347 





Product: 

Spectrum Inline Eductors 

Description: 

Spectrum Inline Foam Eductors provide the simplest and most economical 

method of introducing a controlled flow of foam concentrate into 

a pressurized water stream. As opposed to “Hydro-Foam Technology”, 

(which is used in conjunction with master stream nozzles) these “Venturi- 

Type” foam proportioners are designed to be used in conjunction with a 

matched constant flow end-of-line device (nozzle), where adequate water 

pressure is available. Inline foam eductors are capable of operating at inlet 

pressures as low as 70 psi, but in most cases adequate residual fire fighting 

pressure at the nozzle requires that the eductor inlet pressure be at least 100 psi, or greater. 

Spectrum Inline Eductors are rated to flow 60, 95, or 125 gpm @ 150 psi inlet. Nominal flow rates at other inlet pressures are listed 

below. Eductor outlet pressure is approximately 65% of inlet pressure. Eductor components, including body, venturi jet and metering orifice 

are constructed of corrosion-resistant brass. 

Standard water inlet - NH (F) swivel. Foam solution discharge - NH (M). Complete with clear pvc concentrate pick-up hose with slotted 

brass “stinger”; 1% or 3% fixed orifice; ball check valve. 

RIGID 

Model 

Nominal 

Nominal 

Nominal 

Proportioning 

Flow 

@100 PSI 

Flow 

@125 PSI 

Flow 

@150 PSI 

1.5” -60 gpm 49 gpm 55 gpm 60 gpm 1% or 3% 



PRODUCTS 409-745-3232 J8 

EMERGENCY 409-727-2347 

120108 





Product: 

Spectrum “Double Action” By-Pass Eductor 

Description: 

The Spectrum “Double Action” By-Pass Foam Eductor provides the versatility 

of a full-flow water by-pass foam proportioner in conjunction with the simplicity 

and reduced weight of a standard, single waterway inline eductor. This specialty 

by-pass type foam venturi transforms any 1.5” handline into a foam proportioning 

system. Three flow rates are available: 60 gpm; 95 gpm; 125 gpm. Flows are based 

on 200 psi inlet pressure. The eductor will proportion foam at lower inlet pressures, 

provided that discharge pressure is not excessive. Positive shut-off metering allows foam proportioning to be adjusted and set from 0.5% 

to 3%. Body is constructed of durable 6061 - T6 (black) anodized aluminum. 

In operation, foam is produced by simply installing the system in the hose line, emersing the concentrate pickup tube into an adequate supply 

of ThunderStorm ® AFFF foam concentrate and adjusting the eductor to the “foam” position. When foam application is no longer needed, 

there is no need to remove the eductor for application of water only. This conversion is easily accomplished by simply rotating the foam control 

sleeve to the “water” setting. The result is an enlarged waterway which allows for water only application. 

Other Features Include: 

• Positive Shutoff Metering Valve. 

• Integral Concentrate Ball Check Valve. 

• Clear Plastic Concentrate Pick Up Hose with Rigid “Stinger”. 

• Lightweight, Compact Design (4 lbs., nominal). 

Double 

Action 

Eductor 

Nominal Flow 

@200 PSi 

K-Factor Inlet Discharge Proportioning 

Range 

60 gpm 60 gpm 4.25 1.5 NH (F) Swivel 1.5” NH (M) 0.5%-6% 



PRODUCTS 409-745-3232 J9 

EMERGENCY 409-727-2347 

120108 




“PKW” Dry Chemical Delivery Manifold — Typical Layouts 

PRODUCTS 409-745-3232 J10 

EMERGENCY 409-727-2347 

120108 




Hydro-Chem Technology 

Manifolds for Hydro-Chem Systems 

Dry Chemical Manifiold - 4 Inlets 

Dry Chemical Manifiold - 6 Inlets 

PRODUCTS 409-745-3232 J11 

EMERGENCY 409-727-2347 

120108 




Hydro-Chem Technology 

Typical Hose Lay For Hydro-Chem Trailer mount Systems 

1000 GPM Hose Layout 

Patriot II Hose Layout 

PRODUCTS 409-745-3232 J12 

EMERGENCY 409-727-2347 

120108

foam proportioning & loose equipment section index - Williams Fire ...

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