No Mark :- Nomenclature of Applied Fluid (Working Oil With Petroleum Contents) - V :- Model No. (V Series Piston Pump) 38 :- Displacement Volume (37.7 cm3/rev A :- Control Method I (Pressure Compensator Control) 3 :- Pressure Adjusting Range (3.5 ~ 21 MPa) R :- Direction of the Rotation From the View of the Shaft end (Clockwise (Rightward)) X :- Piping Direction (Side Port) - 95 :- Design Number (95) No mark :- Control Method III (Without Remote Control System)