This is a typical balanced pressure proportioning set , the pressure of the system comes from the foam pump. Usually the outlet pressure of the foam pump is 0.1-0.2Mpa higher than the water supply pressure, and then the pressure of the foam concentra
More >>Water-turbine driven pump proportioner ,in the new FM standard ,was called hydraulic driven proportioner which composed of hydraulic motor and foam pump. The hydraulic motor and foam pump are positive displacement fluid machinery, that is, the displa
More >>This is the name in FM standard, also known as the direct injection variable pump output proportioner in China. The water side and the foam side are respectively provided with a flow meter, the flow meter measurement results are input to the PLC for
More >>This is a negative pressure proportioner, usually using a venturi tube. When water flow through the tube will generate negative pressure, and then the foam concentrate is sucked into the proportioner. Due to the ratio of the flow area, so as to achie
More >>This kind of proportioner is similar to the in-line eductor, which is installed in the bypass between the outlet of the pump and the suction inlet. Part of the water at the outlet of the pump flows into the proportioner, and then the venturi tube of
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