Roots vacuum biggest advantage is with high pumping speed at low inlet pressure, but it can not be used alone Hebei Roots vacuum where there must be a stage-stage pump series, until pressure in the system is pumped by the former Roots vacuum pump pumped when class population pressures allow Roots vacuum Hebei purposes Roots Roots vacuum pump to begin work, and, in general, does not allow Roots vacuum pressure differential at work, otherwise it will overload and overheating damage, so use Roots vacuum; reasonable selection must pre-vacuum pump, install the necessary protective equipment. Roots vacuum pump (referred to as the Roots pump) is a rotary positive displacement pumps. It is evolved from the Roots blower. Depending on the scope of work Roots vacuum pump, is divided into vertical atmospheric low Roots vacuum pump; Roots vacuum pump (also called mechanical booster) and high vacuum multi-stage Roots pump. In general, the Roots pump has the following characteristics: in a wide pressure range greater pumping speed; starting fast, able to work immediately; not sensitive to dust and water vapor contained in the gas to be drawn; the rotor does not have to lubricate, oil-free pump chamber; vibration, rotor balancing condition is better, there is no vent; small drive power, small mechanical friction losses; compact, small footprint; low operation and maintenance costs. Therefore, Roots pump in metallurgy, petrochemical, paper, food, electronics industry has been widely used. Hebei Roots Roots vacuum pump manufacturers, wholesale _ _ Zhucheng East Machinery Co., Ltd. is provided by John Han Machinery Co., Ltd. Zhucheng East. 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 the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future! You can also access (www.dhlcfj.com/supply_details_40611325.html), for more information about the company.