What are Perimeter Solutions Ratio Controllers?
What are Perimeter Solutions Ratio Controllers?
forede® Perimeter Solutions Ratio Controller is an intelligent foam proportioning system that precisely mixes water and foam concentrate at preset ratios (e.g., 1%, 3%, 6%). It features:
Flow-sensing technology: Real-time water flow monitoring via integrated turbine/paddlewheel.
Dosing control: Adjustable metering valve governed by microprocessor logic.
Fail-safe design: Built-in alarms for low concentrate/flow errors.
Mounted in-line with firewater pipelines, it automates foam injection for Class B (flammable liquid) fire suppression systems, ensuring optimal foam solution quality.
forede® Perimeter Solutions Ratio Controllers are specialized fire-fighting devices. They function as foam concentrate proportioning tools, accurately metering foam concentrate into water streams within specific flow and pressure ranges, with minimal pressure loss. Composed of a water-inlet body, a metering orifice at the foam inlet, and a downstream throat, they ensure proper mixture ratios for fire suppression.
Precision proportioning: Maintains ±0.5% ratio accuracy across 20–5,000 LPM water flows.
Zero energy operation: Hydraulically driven – no external power required.
Corrosion resistance: 316L stainless steel wetted parts withstand AFFF/AR-AFFF concentrates.
Adaptive calibration: Self-adjusts for viscosity/temperature changes in foam tanks.
Low maintenance: No moving parts in contact with foam; field-serviceable components.
System Workflow:
1️⃣ SET RATIO: Adjust dial to required % (e.g., 3% for foam).
2️⃣ CONNECT: Link concentrate supply line to controller inlet.
3️⃣ ACTIVATE: When water flows, the controller:
Measures water flow rate
Calculates foam demand
Opens metering valve proportionally
4️⃣ MONITOR: Check sight glass for solution homogeneity.
5️⃣ RESET: After operation, flush with water per foam manufacturer guidelines.
As a leading company in firefighting field,FOREDE has a wide product range including Fire Nozzle＆Monitors, Fire Sprinkler Systems, Foam Systems, Fire Hydrant Systems,Fire Truck Accessories.etc.
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