2BV series water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can reach 33mbar (abs) (i.e. 97 % vacuum degree). When the liquid ring vacuum pumps work under the condition near the limited vacuum for a long time, it is necessary to couple with the cavitation protection pipe in order to get rid of the screaming and protect the pump. If used as a compressor, its pressure is up to 0.26MPa (absolute pressure). 2BV series water ring vacuum pumps and compressors will replace the SK and 2SK series water ring pumps and the W, WY, WL series reciprocated vacuum pumps completely with their superior performance and advantages.

2BE1 series water ring vacuum pumps and compressors are the products with high efficiency and economic power, which are manufactured by our company integrating with the advanced technology of the imported products from Germany.

2BE3 series water ring vacuum pumps and compressors are designed and manufactured by our company integrating with the advanced technology abroad. They not only can save energy, but also can work constantly for a long time.

The water ring vacuum pumps are used widely in chemical and pharmacy areas for its characteristics of the work principle and structure. Normally, the operating liquid of the water ring vacuum pumps is almost discharged out directly or drained into the large circulation pool, as Figure 1.

The Roots vacuum pump is also known as the mechanical booster which is a positive displacement type pump. It is one of the special pumps which can reach middle, high vacuum range. Its work principle is similar to the Root fan. Both of them used a pair of rotors, whose shape looks like 8, to achieve the suction and discharge process“Please refer to Work Principle of the Roots Pump.”

ZJQ Series air-cooling roots vacuum pump is in ZJ Roots series vacuum pump based on the increased bypass gas cooling system is designed. Because of its special structural design, make its can run reliably for a long time under the high pressure.