API Mud Pump Assembly Pistons Mud Pump Piston assembly is the important spare parts and expendable parts of oil drilling mud pumps. Mud Pump Pistons are made of high hardness alloy steel, and they are wear-resistant, anti-corrosive and anti-distortion after heat treatment. The seal of the piston can be made of polyurethane, polyether material and it can be also made of thiakol rubber. Characteristics and features ▲100% interchangeable with the most common brands of mud pumps. ▲High tensile strength. ▲Max. mud operating temperature up to 250°F. ▲Extended service life. ▲Customized pistons according to drawings can be produced. Specifications and parameters Type Bonded pistons, Replaceable pistons Material of piston hub 45# steel or 40Cr Material of piston cup urethane NBR rubber Surface treatment of piston hub phosphating /Oxidizing Size 3 ~ 8 in Brand NATIONAL/GD/EMSCO/OILWELL/IDECO/DRILLMEC/WEATHERFORD/BOMCO /TSC/EWCO/AMERICANBLOCK/E…