Whtat is Mud Pump Relief Valve Manual Reset Piston?

Piston Of JA-3 Relief Valve, Manual Reset Relief Valve is mainly used as mud pump relief valve, with the same function as shear relief valve; but Reset Relief Valve can automatically snap to a full open position when the preset pressure is exceed. Once the pressure released, the reset was done to recover to work within several minutes when to operate the reset handle.

The pressure setting is indicated by a pointer and is adjustable over the entire operating range by turning a nut on top. LONGWELL could provide 2”, 3” type to adjust the pressure range from 1500psi to 5000psi. Welded, Flanged, Hammer Union Fig1002 & 1502 end connection available.

JA-3 Shear Relief Valve 3”-5000psi, which is popular used in BOMCO Mud Pump F1300/1600, HHF1300/1600 and 3NB1300/1600. There is Threaded and Flanged connection, union is available upon request.