Roots vacuum pump (referred to as: Roots pump) is the pump contains two opposite directions synchronously rotating lobed rotor Roots vacuum outlets, between the rotor, the rotor and the pump housing wall there is a small gap and do not touch a variant displacement pumps. Roots vacuum pumps in petroleum, chemicals, plastics, pesticides, turbine rotor balancing, aerospace space simulation test has been a long-running production, wholesale Roots vacuum device, it should promote and use at home. But also widely used in petroleum, chemical, metallurgy, textile and other industries. Roots vacuum pump parts for pump for noise control, vacuum muffler. The principle and structure Roots vacuum pump is mainly composed of a pair of high-speed synchronous rotation of the "8" shaped rotor and two semicircular pump chamber components. The pump alone can not exhaust, must be with a pump (such as claw-type pumps, screw pumps, rotary piston pump, water pump, oil ring pumps, etc.) used in tandem. Front air intakes on the front-stage pumps in series Roots vacuum pump unit and increase the degree of vacuum before the pump, the effective range can greatly improve the pumping rate. Roots vacuum pump ultimate pressure is determined by the pre-pump. Roots pumps are widely used in vacuum casting, vacuum distillation vacuum melting, vacuum degassing, vacuum coating industry and the chemical and pharmaceutical industry, vacuum drying. Pump is not sensitive to small amounts of dust. Roots Roots vacuum pump manufacturers, wholesale _ _ Tianjin Machinery Co., Ltd. Zhucheng East Han Han by Zhucheng East Machinery Co., Ltd. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (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 Zhucheng East Han Machinery Co., Ltd. into the brilliant and you work for a better future!