pressure-balanced structure, Axial load small, long operating life , sinple structure to open The ... , rubber machine, Mother Machine, etc, espercially in the low pressure pump .1. High performance, low noise and long life, easily to ... , can directly be assembed into Motor pump combination. specifications:1. model: 50T(vane pump)+50T(vane pump)2. maximun working pressure: 7.0Mpa3 ...