JA-3 A Shear Relief Valve
Shear pin safety valve can be connected in two ways, one is threaded connection, and the second is flange connection. It is an insurance of mud pump, before the pump working, according to the cylinder and piston specification determines the rated pressure, the safety valve cover off the shear pin on the clipboard into the pin hole. If the pump head pressure exceeds the rated pressure, shear pin will be cut and mud from the side of the vent valve, play a protective role.
The easily damaged parts in the shear pin safety valve are shear pin, piston, piston rod, rubber cushion, etc.
Specifications
1. Shear pin relief valve
2. Type:JA-3
3. Flange / screw thread connection
4. Max pressure: 5500 PSI
JA-3 type of shear relief valve is applicable to high-pressure spray rig which is widely generalized now and also used for the high-pressure cyclic systems of other media (such as oil and water).
Compared with spring and membrane valves, the valve has following features:
1． Flexible opening and closing;
2． Small pressure-bearing piston area;
3． Simple reset;
4． Good generality available for connection with various pumps.
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