The pump body adopts a round valve with special structure, which is opened when the outlet pressure is higher than the working pressure. Then, some medium will return to the inlet of the pump or storage tank through this annular valve. At the same time, the pump can be started under full pressure, thus greatly reducing torque.

We can produce and supply various high-quality electric or hydraulic marine pumps (pumps, cargo pumps, oil transfer pumps, bilge pumps, sewage pumps) for different types of ships. It can provide different displacement and capacity as well as different materials (stainless steel, copper or cast iron). We can provide different types of screw pumps, centrifugal pumps, horizontal pumps, displacement pumps, etc. in China. The motors we use can be ABB or other famous Chinese brands.