how control valve works
The possible uses of the pressure control valve are widely varied and well established. It can be used in two possible ways depending on the application:
Pressure Control Valve
Maintain constant back pressure for exact flow rates under free flow conditions, with positive pressure on the inlet side or with varying back pressure, or with the operation under vacuum etc.
Bypass Valve
Serves as a safety device for protection of the pump, motor, pipework, vessels and other accessories. Installed as a bypass valve, it prevents excessive pressure build up in the system caused by dirt, misuse or other problems.
The pressure control valve FDV30/1.30 are able to handle air, gas and liquids.
The pressure control valve can used with KNF products as well as other pump systems. The FDV30/1.30 series are recommended for use with the following pumps.
Metering pumps - all FM Products
Transfer pumps NF10, NF30, NF1.30
Vacuum pumps. Up to a max flowrate of: CALL KNF
Note! Pressure control valves are not absolutely tight shut-off valves. They should always be installed on the pressure side of the pump.
2012-05-02
