• Material:

Piston hub: 45# steel or 40Cr with hardening and tempering
Piston cub: NBR, urethane

• Service life range, depend on the material:

≥200 hours
≥300 hours
≥500 hours
≥700 hours

Piston Classification:

• 1. Bonded piston:

one piece bonded constructed piston, vulcanizing piston cup on piston hub directly, and don’t need press plate and snap spring to fix.

• 2. Replaceable piston:

can remove the piston cup, and the pistons are fixed by press plate and snap ring. Someone also distinguish the pistons by single acting piston and double acting piston.

Applicable pump
American Block / Aplex(Myers) / Bomco / Brewster / Continental Emsco / Drillmec / Ellis Williams (Lewco) / Eweco / Gardner Denver / Gaso / Great American / Hong Hua / Ideco / L.J.R. / Loadmaster / LS-NOW / Massarenti / Maxus / National /Oilwell / OMEGA / OPI / Soilmec / TFI / TSC / Tulsa Rig Iron / Upetrom / Weatherford / Wilson / Wirth / Mattco / Russian Pump /Rongsheng / Qingzhou /