... capability, good performace and servies aluminium hydraulic high pressure single HGP-3A series HGP-3A seriesFeature1,Maximum pressure250bar(3500psi)2,Displacement cc ... . Flow rates up to 1081pm, maximum pressure 250bar. Multi-joint combination can be, with a series of meet SAE, DIN, European standard ... seals, 0-ring or around the cover. aluminium hydraulic high pressure single HGP-3A series gear pump