1, High-quality Oil Drilling Mud Pump Valve Assembly 2, material 35 CrMo 3, insert: PU / NBR 4, working life: 200hours High-quality Oil Drilling Mud Pump Valve Assembly After heat treatment and processing by digital lathes, the product strength is enhanced enough. The valve body fits the valve seat perfectly and the working life is 2-3 times more than ordinaries.
*Grade One: Material: 20CrMnTi Insert material JSR-220S Temperature ≤ 60° C, 120° C Max. Pump working pressure 18 Mpa Working life 200 hours *Grade Two: Material: 20CrMnTi Insert material polyurethane Temperature ≤ 80° C Pump working pressure 20 Mpa Working life 400 hours *Grade Three: Material: 20CrNiMo Insert material PU Temperature 260° C Max. Pump working pressure 35 Mpa Working life 450 hours