we can offer premium piston with replacement rubber ,also
offer a full line parts for this piston ,including piston
rubber,piston hub,snap ring ,plate.
Material of the piston hub is 40Cr forging steel,After rough
process, hardness is HB283-302 or HB 255-285.After intensive
process, the surface will be phosphorated or oiled according to
customers demand. If it is not specified,it is phosphorated. Piston
hub have sigle-acting abd doule acting. Outsaide dimension is
according to customers requiement. Our standard size is
D-0.08(-0.10-0),D is the liner nominal insiade dimension from 3” to 8”. The multi-ply fabric reinforced backings used in the
production of the piston rubbers provide positive, wear resistant
seals. High tensile strength, resistance to chemicals,
hydrocarbons, and abrasion, long lasting service, and full
interchangeability with other API designed pistons make our Premium
piston a sound value.