The overflow the structure working principle of pneumatic valve

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.

the overflow pneumatic valve main effect
constant pressure overflow effect: in quantitative pump throttle control system, the quantitative pump provides a constant flow rate. When the system pressure, can reduce traffic demand. At this point the overflow pneumatic valve open, excessive flow back to the fuel tank, ensure the overflow pneumatic valve inlet pressure, pump outlet pressure constant ( Pneumatic valve mouth often fluctuates according to pressure open) 。

voltage stabilizing role: overflow series pneumatic valve on the back to the oil, the overflow back pressure pneumatic valve, the moving parts of increase.

system unloading effect: in the overflow of the pneumatic valve remote control mouth concatenated small flow pneumatic valve, electromagnetic spill when the electromagnet electricity, the overflow mouth of pneumatic valve remote control fuel tank, hydraulic pump unloading at this time. The overflow of pneumatic valve used as unloading pneumatic valve at this time.
security protection: the system to work normally, the pneumatic valve is closed. Only load in excess of the prescribed limit, The system pressure more than the setting pressure) When open the overflow, overload protection, no longer increases the system pressure ( Usually make the overflow of the pneumatic valve setting pressure higher than the system maximum working pressure % ~ %) 。 Generally have:
practice for unloading pneumatic valve, a remote regulating pneumatic valve, pneumatic valve for high and low pressure multi-stage control, sequential pneumatic valve, used to produce back pressure ( String on the back to oil) 。

the overflow pneumatic valve has two kinds of structure: commonly, straight moving type relief pneumatic valve. Pneumatic valve, pilot operated relief.

the main requirements for the overflow pneumatic valve, pressure regulating range is big, pressure regulating deviation is small, small pressure oscillator, action quick, large overload capacity, low noise.

the overflow, the basic principle of the pneumatic valve
a pneumatic hydraulic pressure control valve. Main constant pressure relief role in the hydraulic equipment and safety protection.
constant pressure overflow effect: in quantitative pump throttle control system, the quantitative pump provides a constant flow rate. When the system pressure, can reduce traffic demand. At this point the overflow pneumatic valve open, excessive flow back to the fuel tank, ensure the overflow pneumatic valve inlet pressure, pump outlet pressure constant ( Pneumatic valve mouth often fluctuates according to pressure open) 。
security protection: the system to work normally, the pneumatic valve is closed. Only load in excess of the prescribed limit, The system pressure more than the setting pressure) When open the overflow, overload protection, no longer increases the system pressure ( Usually make the overflow of the pneumatic valve setting pressure higher than the system maximum working pressure % ~ %) 。 Generally have:
practice for unloading pneumatic valve, a remote regulating pneumatic valve, pneumatic valve for high and low pressure multi-stage control, sequential pneumatic valve, used to produce back pressure ( String on the back to oil) 。

the overflow pneumatic valve has two kinds of structure: commonly, straight moving type relief pneumatic valve. Pneumatic valve, straight-pilot overflow

- overflow of pneumatic valve China pump pneumatic valve network quality suppliers recommendation: