3, closed impeller: the higher the efficiency of the type of impeller normal. And in the long run the situation is more stable 4PW sewage pumps offer, using this type of impeller shaft to force smaller, and you can set the vice blade in the front cover. Deputy leaves on the front cover can reduce the vortex impeller inlet losses and wear particles on the sealing ring. Deputy leaves the rear cover only a balancing axial force 4PW sewage pumps, and can prevent suspended particles into the mechanical seal chamber for mechanical seal protection. Without blocking the type of impeller poor, easy to wound 4PW sewage pump manufacturers, not at the end of the treated sewage pumping media containing large particles (long fibers) and the like. 4, flow impeller: the kind of impeller belong bladeless impeller, impeller from the inlet to an outlet of a curved flow channel. It is appropriate for pumping media containing large particles and long fibers. Anti-blocking is good. WG, WGF, WD, WDF type sewage pump, according to the company according to my JB2975-81 "centrifugal sewage pumps," a new series of sewage pump ministerial standards development. The pump of advanced design, compact structure, high efficiency, easy maintenance, is a highly efficient, energy-efficient water pump. WG, WD series pumps are suitable for pumping below 80 ℃ sewage, manure and liquid containing fibers or suspended matter (suspended solids fast group size does not exceed 80% of the diameter of the discharge). WGF, WDF-type pump flow zero no parts are made of stainless steel, so that the pump for conveying contain acid, alkaline or other corrosive sewage, for the chemical industry, research and other departments in the process of temperature less higher than 80 ℃ chemical slurry purposes. Can also be used in the food industry transport slurry 4PW sewage pump manufacturers | Tianjin sewage pump (certified) | 4PW sewage pump provided by the Anguo City Pump Co., Ltd. Shi Yuan. Anguo Shi Yuan Pump Co., Ltd. (www.shiyuanbeng.com) Hebei Baoding, centrifugal pumps leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Shiyuan pump leadership with the staff warmly welcome all inquiries negotiations to create Shiyuan pump better future.