1 Type:JA-3 safety valve 2 shear pin style 3 flange / screw thread connection 4 Max pressure:35Mpa Shear pin safety valve (JA-3 style ... )Purpose: Cuting off safety valve could be insure the mud pump not ... in mud pump,fluid end. Our products mainly include valve seat and body, valve assy, liners, piston, piston rod and others mud pump ...