ZJ series Roots vacuum pump is a rotary positive displacement pump, there must be before the pump is intended for use with the Roots pump prices over a wide pressure range has a higher pumping speed, to be pumping gas contains dust Roots vacuum and steam insensitive use, widely used in metallurgy, chemical industry, food, electronics coating and other industries. Gas-cooled Roots pumping through both a plum-type rotors, alternating suction and discharge gas to form a vacuum, face contour shape of the rotor includes a lot of curves, such as white lines and arcs cycloid Roots vacuum pump manufacturer, and arcs include line between the rotor and the rotor, there is a gap between the rotor and casing, do not touch, smooth rotation, smooth smooth pumped gas to exhaust estuary, thanks to three valve-type rotors, can guarantee cold-air return oral never communicated with the intake port, so that when the pump is operated at high differential pressures, the gas can be discharged through the cooler return pump cooling pump rotor, without affecting the vacuum's ability to move the motor through V -belt or coupling drive pump. Roots vacuum pump structural characteristics: 1, in a wide pressure range has a higher pumping speed; 2, the rotor has a good geometric symmetry, so little vibration, smooth operation between the rotor and the rotor and the housing between both. gap, no lubrication, small friction loss, can greatly reduce the driving power, enabling high speed; 3, the pump chamber without sealing and lubrication oils can reduce the pollution of oil vapor vacuum system; 4, the pump chamber without compression, no exhaust valve structure is simple, compact, and has been pumping gas for dust and water vapor insensitive;. 5, Roots vacuum pumps at home and abroad in recent years has been rapid development in the metallurgical, petrochemical, electrical, electronics and other industries has been widely used. Roots vacuum lifting and transportation Note 1. Roots vacuum machine lifting methods should be appropriate. 2. lifting capacity spreader and lifting equipment to adapt to the weight of the vacuum pump. 3. spreader to be long enough that the spreader angle is less than 90 degrees. 4. Select the appropriate lifting points. 5. Place the spreader must be correct in order to ensure smooth lifting. 6. Check the integrity of the spreader. 7. Make sure the lifting capacity of lifting equipment! Roots vacuum pump manufacturer | Zhucheng East Han Machinery Co., Ltd. | Shenyang Roots vacuum provided by the Eastern Han Machinery Co., Ltd. Zhucheng. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. John in Zhucheng East Machinery Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Zhucheng East Han Machinery Co., Ltd. a better future.