and pump cover are punched by metl with fluoroplastic lining. Shaft seal bellows mechanical seal set outside. Seal ring is made of Silicone carbide. Rotary ring is made of gland packing Teflon or silicone carbide. The advance structure insures anticorrosion and strict seal and low noise and long life etc.
The pump is widely used to transport the liquids and waste water and add the acid etc in chemical industry and petroleum and pharmacy an