Roots vacuum structural features (1) over a wide pressure range greater pumping speed; (2) a rotor having a good geometric symmetry, so little vibration, smooth operation. Between the rotor and the gap between the rotor and the housing are without lubrication Henan Roots pump price, small friction loss, can greatly reduce the driving power, enabling high speed; (3) the pump chamber without sealing and lubricating oil, reduce oil vapor pollution Roots vacuum pump vacuum system features are: Start fast, low power consumption, low operating and maintenance costs Roots vacuum pumps, pumping speed, high efficiency Roots vacuum wholesale Henan, was pumping gas in to the containing a small amount of water vapor and dust is not sensitive in the range of 100 to 1 Pa pressure greater pumping rate can quickly rule out a sudden release of gas. This happens in a pressure range between mechanical pump seals and diffusion pump. Therefore, it is often in series between the diffusion pump and mechanical seal pumps, used to increase the range of the intermediate pressure exhaust volume. At this time it is called mechanical booster. Henan Roots vacuum pump manufacturer, Roots vacuum pumps, Zhucheng East Machinery Co., Ltd. is provided by John Han Machinery Co., Ltd. Zhucheng East. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future!