It's same as BOSCH REXROTH (VSQ-30-LM) G1/2
Applications
They are employed to control the sequence of two or more cylinders or motors, when the second actuator must be allowed to move only after the first actuator has performed a certain function. The incorporated check valve allows free reverse motion without specific control of the sequence.
Description
they are composed by a relief valve (opening "B-A") with hydraulic dampening, and by a reverse flow annular check valve "A-B". Initially the flow goes to a first line connected in parallel to the B side, not shown here, and pressure increases until reaching the selected relief set- ting; then the relief valve opens and the second circuit is supplied out of A port, while the actuator connected to the B side remains pressurized. The incorporated check valve allows the reverse motion of the actuators which happens without specific control of the sequence, only depending from the load/pressure conditions.Note that pressure at A needed to operate the second actuator is additive to the relief setting, and, for this rea- son, this valve is successfully employed to energize a secondary actuator which only requires low pressure.
Basic datasheet:
Max working pressure: 350 bar
Max flow rate: 80L/min (80 lpm)
Spring adjustable pressure:30Bar to 130Bar
Dimensions
symbols
Yuzhou have own R&D department,we can special design the valves for your application.
Choosing YUZHOU hydraulic is choosing high quality!
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