We are leading manufacturer and supplier of solenoid operated relief valve in China, specializing solenoid operated pressure relief valve.
*These valves are used for the pressure reducing valve and could couple with check valve to act adjustable back-pressure control.
*These types of valves are applied at back-pressure control for plastic injection molding machine & hydraulic pressing machine ect.
*Smaller package on the larger pipe sizes.
*More options for control.
*Seals more tightly as the system pressure approaches but does not reach set pressure.
*Control pilot can be mounted remotely.
*Some designs allow for changes in orifice size within the main valve.
*Can be used in engines.
It consists of a main valve (safety valve) and a pilot valve (direct acting safety valve). The main valve is a real safety valve, and the pilot valve is used to feel the pressure of the pressure system and open and close the main valve.
The amount of closing force of the pilot operated safety valve before it is about to open may be unrestricted, but for some configurations the pilot operated safety valve may also be limited by selection.
To ensure the sealing performance of the pilot operated safety valve and other performance indicators:
1.There are strict requirements on the flatness and surface roughness of the seat sealing surface and the disc sealing surface of the main valve.
2. There are strict requirements on the flatness and roughness of the valve seat sealing surface and the valve sealing surface of the pilot valve, and strict requirements are also imposed on the geometry, material and heat treatment of the compression spring.