Description

1. Shear pin safety valve is used at the discharge part of the mud pump, and the structure is shown in the following figure: when pump 3 raises the shear pin plate 10, shear pin 11 is cut off and the in-pump pressure is emptied quickly.

2. JA-3 shear pin safety valve changes the discharging pressure by changing the position of the shear pin, which is operation easy and work reliable.

3. JA-3 shear pin safety valves can be divided into joint type and flange type