Huiren Knock-off Valve Hydraulic Limit Valve for Dump Truck

Huiren Knock-off Valve Hydraulic Limit Valve for Dump Truck

During the lifting process of the hydraulic system of the dump truck with air pressure, the air pressure passes through the inlet port P of the limit valve (connected to the control valve) and port A (connected to the lifting port of the hydraulic valve), causing the carriage to lift. 

When the dump truck is lifted to a certain height, the lifting cylinder or other transmission device touches the distance adjustment limit rod of the limit valve, and the passage between port P and port A is cut off. Port A is released into the atmosphere, and the hydraulic system has no air pressure input. The carriage stops at a certain position, It plays a limiting role.