Performance Characteristics: ★ Pump housing is made of high strength aluminum alloy material. ★ The shaft extension type: P (plain key), H( rectangle spline), flat key, woodruff key. ★ The joining type of inlet/outlet is flange (F) or thread (L). ★ The auto-compensation unit of axial clearance ensures the high volumetric efficiency. ★ Higher working pressure, wider speed range.