T7DS Series are fixed displacement and balanced type single vane Pumps. The pump is designed for higher operating pressure and greater flow at the same housing size. With a balanced pin-vane design, outlet pressure is continuously applied only the pin. The pin provides the steady light force against the vane. Top and bottom areas of the vane are subject to the same pressure, either inlet or outlet pressure, depending on the vane’s location during rotor rotation. This pin-vane design minimizes noise level and improves volumetric efficiency. With the cartridge independent of the shaft, allowing for easy change of flow capacity and servicing without removing the pump from its mounting.