one.Ever-Power Vacuum Pumps Co.,Ltd.
Producer of: Vacuum pumps of spiral slice kind, Rotary Piston vacuum pumps, Roots Vacuum pumps, Cas-Cooling Roots Vacuum pumps, Rotary Vane Vacuum Pumps, Water ring Vacuum Pumps,Reciprocating vacuum pumps and Vacuum valves and examine values and other associated vacuum merchandise and process.
HangZhou Ever-PowerVacuum Pumps Co.,Ltd. We’ve got the strongest development ability of vacuum pumps and vacuum equipments technologic.
Company has advanced design, State-of-the-art tools, the biggest vacuum pumps test center in China, also has by now established the rigid Q/C systemas per ISO9001 conventional. There are total 25 important series of vacuum gear, Our products are extensively used in departments of metallurgical, developing products, petroleum, environmental, proteion, chemical, medicine, textiles, food, aerospae, electronic, power, national defence industries and 
science analysis etc.
2.LIQUID (WATER) RING VACUUM PUMPS
Working principle and characteristics:
For the series SK, 2SK, YK and 2YK liquid ring vacuum pumps, multi-vane impeller is fixed ecceentrically while in the pump casing. Once the vanes rotate, the liquid in the casing kinds a liquid ring that is concentric together with the pump casing beneath the centrifugal impact, the cubage between liquid and vanes have a periodic transform, so the function of pumping be performed. Liquid ring vacuum pumps are with the features of lower vitality consumption and lower noise. They might be made use of to pump water vapor, inflammable and explosive gas at the same time as ordinary gases. With exclusive products used for important components, they will also pump corrosive gas. Appropriate actuating medium or in some cases pumped medium is often selected as actuating liquids, so the pumps can nearly deal with all extensively employed for light, chemical, meals, electric power and pharmaceutical industries, etc.
