Claw pump and water pump equipment corrosion resistance when pumping relatively acidic medium of the presence of oil-free vacuum pump gas, due to the presence of water, the water ring pumps, acid gas dissolved in water to form acid, the acid in the water ring pumps driven impeller, the pump has a strong erosion-corrosion. The pump is dry claw claw-type vacuum pump operation, acid gas can not form acid pumps, corrosion is very slight. Claw type dry vacuum pump advantage is particularly evident in the solvent recovery vacuum pump manufacturer, has been reused in many industries. Since the claw dry vacuum pumps are dry-type vacuum pump inside the pump chamber without contact, no friction, there is no need lubrication. From before pumping into the matter, through a unique mechanism of condensing claw type dry vacuum pump, secondary recovery can be done. _ Claw vacuum pump oil-free vacuum pump Than Shwe _ Vacuum Equipment Ltd. (certified merchants) are provided by Zibo Vacuum Equipment Co., Than Shwe. Than Shwe Zibo Vacuum Equipment Co. (www.zbdrzk.com) in vacuum in this area devoted boundless enthusiasm and passion, Than Shwe Vacuum Equipment Ltd. has been customer-centric, to create value for customers concept of quality, service to win the market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Mr. Wang.