pressure-balanced structure, Axial load small, long operating life , sinple structure to ... machine, rubber machine, Mother Machine, etc, espercially in the low pressure pump .1. High performance, low noise and long life, easily ... . model: 50T(vane pump)+50T(vane pump)2. maximun working pressure: 7.0Mpa3. output volume: high-duty pump(17ml/rev), low ...