The overflow pneumatic valve in the hydraulic system

the overflow pneumatic valve is a kind of hydraulic pressure control pneumatic valve, main constant pressure relief role in the hydraulic equipment, voltage regulator, unloading system and safety protection. Under the back pressure pneumatic valve manufacturer to introduce below.
. Overflow effect,
quantitative pump oil supply, it cooperate with throttling pneumatic valve, hydraulic system can adjust and balance the traffic. In this situation, often with pressure pneumatic valve open, due to the variation of oil by the pneumatic valve flow back to the fuel tank, under the constant pressure of the overflow effect.
. Safety protection role
avoid hydraulic system and machine caused by overload. In this situation, pneumatic valve is normally closed, only open load in excess of the prescribed limit, the safety protection. Usually, the overflow of pneumatic valve setting pressure maximum working pressure higher than system ~ %
. For unloading pneumatic valve
by guiding overflow valve pneumatic valve and two the solenoid pneumatic valve, can make the unloading system.
. For much of the pneumatic valve of the pressure regulating
pipe of the overflow pneumatic valve remote control when you received the adjustment convenient remote adjustment pneumatic valve inlet, in order to realize the remote control purpose ( See the figure)
. For high and low pressure multi-stage control
reversing pneumatic valve will overflow pneumatic valve remote control and a few remote connection voltage regulator, high and low multi-stage control can be realized.
. For pneumatic valve order
the guiding type pneumatic valve oil overflow mouth to output pressure oil exports, and to open pressure cone pneumatic valve after the original channel plugging of oil return, to make it after the processing of drainage flow back to the fuel tank, so that it can do pneumatic valve in sequence.
. Used to produce back pressure
will overflow series pneumatic valve on the back to the oil, can produce back pressure, the balance of actuator movement. Some of the overflow of pneumatic valve setting pressure is low, general use pneumatic type low pressure relief valve can be straight.