3-way flow control valve

With sufficient pressure, the preset flow rate is kept constant in the direction of the arrow. The surplus hydraulic fluid is drained at connection T using a pressure compensator. The inlet pressure pA is load dependent, i.e. it changes with the outlet pressure pB. Therefore a parallel circuit of several 3-way flow control valves is not possible. In this case, the inlet pressures would be defined by the valve with the lowest inlet pressure. Compared to the 2-way flow control valve, the 3-way flow control valve is admittedly more efficient in its energy consumption.

The hydraulic resistance relates to the completely closed pressure compensator.

Adjustable parameters

Designation Range Default value
Nominal flow 0 ... 500 l/min 1
Spring preload 0 ... 10 MPa 0.5
Pressure regulation range 0.01 ... 10 MPa 0.05
Hydraulic resistance 1e-6 ... 1000 bar.min2/l2 0.4