mud pump parts JA-3 safety relief valve

Specifications: 

Shear pin relief valve
Max pressure:35Mpa
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.