Proportioners


Proportioning Equipment introduces the foam concentrate into a flowing stream of water to produce a foam solution. There are many methods of proportioning, but fixed foam systems typically use balanced pressure proportioning equipment. All balanced pressure systems use a modified venturi device called a proportioner or ratio controller.

Proportioners are available in a variety of sizes and styles to match required flow ranges and pipe sizes. Each proportioner consists of a body, inlet nozzle, and metering orifice—all of which are corrosion-resistant brass.

Proportioners are UL listed and FM approved with certain foam concentrates and used in conjunction with bladder tanks and pump proportioning skids. Typical applications include flammable liquid storage tanks, loading racks, aircraft hangars, heliports, and anywhere flammable liquids are used, stored, processed or transported.

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  • Documents
  • Additional Information
Document Type  
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Document Name Document Type
(A-Z) 		Language FileName Action
ANSUL Foam Systems Solutions Brochure (Asia Pacific & Middle East) Brochure/Flyer English F-2020050_AP.pdf View
ANSUL Foam Systems Solutions Brochure (Europe & Africa) Brochure/Flyer English F-2020050_EMEA.pdf View
ANSUL Foam Systems Solutions Brochure (Americas) Brochure/Flyer English F-2020050_US.pdf View
ANSUL Foam Systems Application Case Study - High Expansion Foam for Coal Dust Applications Case Study English F-98206.pdf View
ANSUL 3%x3% AR-AFFF (A336 USCG) Proportioner Specific Design Criteria Data Sheet Data/Specification Sheet English F-2019034.pdf View
Proportioning Test Instruments (Rev. 01) Data/Specification Sheet English F-2007003.pdf View
ANSUL Foam Systems Flowmax CL Variable Range Proportioner Data Sheet (Rev. 07) Data/Specification Sheet English F-2005165.pdf View
ANSUL Foam Systems Threaded Proportioners (2 and 2½ In) Data Sheet (Rev. 16) Data/Specification Sheet English F-85144.pdf View
ANSUL Foam System Flanged Proportioners (3, 4, 6, and 8 in.) Data Sheet (Rev. 13) Data/Specification Sheet English F-85143.pdf View
ANSUL Foam Systems Between Flange Proportioners (3, 4, 6, and 8 Inch) Data Sheet (Rev. 15) Data/Specification Sheet English F-8452.pdf View
Johnson Controls, Inc. - Aircraft Hangar High-Expansion Foam Systems - Section 21 13 00 Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems - Engineering Specifications Sheet Specifications English JCI-2017075.docx View
Johnson Controls, Inc. Cone Roof Tanks Deluge Foam Chamber Systems Section 21 13 00 - Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems Engineering Specifications Sheet Specifications English JCI-2017074.docx View
Johnson Controls, Inc. Deluge Foam-Water Sprinkler Systems Section 21 13 00 Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems Engieering Specifications Sheet Specifications English JCI-2017073.docx View
Johnson Controls, Inc. Diked Areas Deluge Foam Maker Systems Section 21 13 00 Fire Suppression Sprinkler Systems - Section 21 13 39 Foam Water Systems Engineering Specifications Sheet Specifications English JCI-2017072.docx View
Johnson Controls, Inc. Heliport Deluge Foam-Water Fixed Nozzle Systems Section 21 13 00 Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems Engineering Specifications Sheet Specifications English JCI-2017071.docx View
Johnson Controls, Inc. Heliport Deluge Foam-Water Monitor Systems Section 21 13 00 Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems Engineering Specifications Sheet Specifications English JCI-2017070.docx View
Johnson Controls, Inc. Loading Rack Deluge Foam-Water Sprinkler Systems Section 21 13 00 Fire Suppression Sprinkler Systems Section 21 13 39 Foam Water Systems Engineering Specifications Sheet Specifications English JCI-2017069.docx View
Johnson Controls, Inc. - Marine Dock Deluge Foam-Water Systems Section 21 13 00 Fire Suppression Sprinkler Systems and Section 21 13 39 Foam Water Systems - Engineering Specifications Sheet Specifications English JCI-2017068.docx View
ANSUL Technical Bulletin - Replacement Components and Service - Genuine ANSUL replacement components recommended for installation on ANSUL products (Rev. 02) Technical Bulletins English F-8922.pdf View
Johnson Controls Technical Bulletin - Foam Concentrates and Solutions Flushing Procedure for Fixed Foam Systems, Tanks, and Proportioning Piping (Rev. 01) Technical Bulletins English T-2016251.pdf View
Johnson Controls Technical Bulletin - Foam Concentrates and Solutions - Flushing Procedure for Fixed Foam Systems, Tanks, and Proportioning Piping (A4 Format, Rev. 01) Technical Bulletins English T-2016251_A4.pdf View

Additional Product Information

Balanced pressure proportioning systems require the foam concentrate pressure to be balanced with the water pressure at the proportioner inlets.

The balanced pressure that exists between the foam concentrate and the flowing water is achieved through the use of a bladder tank or pump skid. The modified venturi device creates the pressure difference required to allow the foam concentrate to meter into the water stream.

At the concentrate inlet, a metering orifice regulates the rate of concentrate flow, determining the percentage of concentrate in the foam solution. Proportioners are specifically designed to accurately proportion and control the mixing of pressurized foam concentrates into a water stream with minimum pressure loss.

Threaded Proportioners

The proportioner body is designed with a female NPT threaded inlet and a male NPT threaded outlet in sizes of 2 or 2 ½ inches. Clearly marked on the proportioner body are the flow direction arrow, as well as the type and percentage of concentrate for which the proportioner was designed.

Between-Flange Proportioners

The proportioner body is designed in four sizes to fit between 3 in., 4 in., 6 in., or 8 in. pipe flanges. Clearly marked on the proportioner body are the flow direction arrow, as well as the type and percentage of concentrate for which the proportioner was designed.

Flanged Proportioners

The proportioner body is designed with flat-faced flanges to match ANSI 150 lb flanges of the same nominal size. Clearly marked on the proportioner body are the flow direction arrow, as well as the type and percentage of concentrate for which the proportioner was designed.

FLOWMAX CL Variable Range Proportioner

The proportioner is designed to proportion and control the mixing of the foam concentrate into a water stream over a wide range of water flow rates and pressures. With the low flow capability, this proportioner is suited for closed head foam-water sprinkler applications where the system flow starts low and increases as more sprinklers open if the fire intensifies. The FLOWMAX CL proportioner is used only with bladder tank systems and can be located up to 35 equivalent ft (10.7 m) from the bladder tank outlet. It has the capability to proportion foam concentrate at flow rates between 25 to 3000 gpm (95 to 11,356 Lpm) at a maximum working pressure of 250 psi (17.2 bar).

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