Wide-Range Variable Orifice Foam Proportioner

Standard: NFPA 11, EN 13565, GB 20031 Connection Type: Wafer, installed between ANSI Class 150 or EN1092 PN16 flanges Operating Temperature: 1.7°C to 49°C Pressure Rating: 30–175 psi or 250 psi Surface Finish: Rough brass, bronze, etc. Available Sizes: 6″ wafer and 8″ wafer System Benefit: Reduces the need for multiple ILBP units

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The Wide-Range Variable Orifice Foam Proportioner is designed to control foam concentrate flow accurately across a broad range of flow rates and pressures. By covering wider operating conditions, it can reduce the need for multiple in-line balanced pressure proportioners in foam fire protection systems.

Key Features

Variable orifice design for wide-range foam proportioning
Provides accurate control of foam concentrate flow
Suitable for different flow rates and pressure conditions
Helps reduce the need for multiple ILBP units
Wafer type installation between ANSI Class 150 or EN1092 PN16 flanges
Brass or bronze material options available
Designed for fixed foam fire protection system applications
Working pressure options of 30–175 psi or 250 psi

Product Configurations

Item	Details
Proportioning Method	Variable orifice flow control
System Application	Fixed foam fire protection system
Main Function	Controls foam concentrate flow across wide operating ranges
Installation Type	Wafer type, installed between flanges
Size Options	6″ and 8″ wafer
Foam Concentrate Inlet	2-1/2″ grooved or 2″ flanged inlet
Material Options	Brass or bronze
Working Pressure	30–175 psi or 250 psi

FAQ
Q1: Who are we?
A: We are a fire fighting equipment manufacturer based in Fujian, China. Since 2004, we have supplied a wide range of fire safety products for domestic and international markets, including fire sprinklers, hydrants, valves, hoses and extinguishers.
Q2: How do we ensure product quality?
A: We follow strict quality control procedures from raw material inspection to production and final shipment. Pre-production samples and final inspections can be arranged according to order requirements.
Q3: What products do we supply?
A: We supply fire sprinklers, fire extinguishers, fire hydrants, fire valves, fire hoses, hose reels, fire cabinets, foam equipment and other fire fighting accessories.
Q4: Why choose Sunroom?
A: Sunroom has over 21 years of experience in fire fighting equipment manufacturing. We offer a wide product range, support customized production, and provide certificates or technical documents according to product and project requirements.

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