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Ningbo Chap Mechan-Electro-Hydraulic S&T Development Co.,Ltd is specializing in production of Rubber machinery,Hydraulic Valves,Plastic machinery...
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Direct-action counterbalance valve
Model LCYZ is a complex valve composed of a check valve and a operated pressure valve. When the fluid from port B to A, the check valve will open, the fluid can flow without any block. Reserves then the check valve closed. There is pressure difference from port A to port B, when there is pressure in the
control port, then it can reduce the pressure difference from A to B, the value is 1/4.3 of  the pressurex.

Technical specification

Rated Flow (l/min)
Pressure (MPa)
Hydraulic Fluid
Mineral Oil, Phosphate
Viscosity (mm2/s)
Fluid Temp. ()
Control rate in control port

Model description                                    Function symbol


External dimensions                                      Hole size


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