WRP FP Foam Proportioner supplied by Dafo Fomtec
The Fomtec WRP FP Foam Proportioner is suitable for bladdertanks based fixed foam systems where a variable flow rate can occur, such as in sprinkler systems or multiple deluge systems. The WRP allows very accurate proportioning which is constant over the whole flow range. The advantage of the WRP is the very wide flow range.
Fomtec have a comprehensive range of low-maintenance foam proportioning devices. Each inductor is calibrated specifically to the system properties to ensure very accurate proportioning. Our unique range of inductors includes the new wide range inductor that combines the simplicity of any inductor system combined with the flow ratio of a traditional foam proportioner. The Fomtec range proportioners offer accurate proportioning in real-life installations at 1:10 flow ratio for GB versions or 1:100 for WRP versions. Both are available for bladdertank och foam pump use.
Application
Fixed foam systems where a variable flow rate can occur, such as in sprinkler systems or multiple deluge systems.
Recommended Foam
All types of foam concentrates with induction rates of 1%, 3% or 6% can be used. For AR (alcohol resistant) foam concentrate a special calibration is necessary and should be mentioned when ordering.
Operation
The Fomtec WRP FP Foam Proportioner is designed to work with Foam Pumps and can be installed horizon-tally or vertically with a minimum pipe length of 5 times the diameter before and 3 times after the WRP. The foam inlet is connected to the foam pump. The operating temperature should be above 0°C. The proportioning ratio is constant over the whole flow range.
Key Data
The Wide Range Proportioner, WRP, for foam pumps offers an exact pre-settled proportioning ratio of 1%, 3% or 6% over a wide water flow range between 70 lpm and 7,000 lpm. The maximum pressure loss is not more than 2.3 bars at 7,000 lpm flow. The foam and the water line are connected to a balance valve that guarantees the pressure difference between water and foam concentrate.
WRP FP Foam Proportioner supplied by Dafo Fomtec
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