Nominal sealing outer diameter: 6 inch (152.4 mm), matched with dedicated 6-inch bimetallic cylinder liner for HHF-1600HL pump
Central metal hub thread: M90×3 coarse thread, universal compatible with 1600 series half-stem QF36001-04.11
Overall piston axial width: 76 mm; outer HNBR sealing lip maximum outer diameter φ156.5 mm
Structure: One-piece integral vulcanized bonded piston (42CrMo alloy steel core + thick HNBR outer sealing layer, non-detachable integrated hot vulcanization molding)
Single pump consumption: 3 pcs per full HHF-1600HL triplex mud pump set
Pump matching core parameters: Rated stroke 305 mm (12″), max stroke frequency 120 SPM, max rated discharge pressure 34.5 MPa (5000 PSI)
