one.Ever-Power Vacuum Pumps Co.,Ltd.
Manufacturer of: Vacuum pumps of spiral slice style, 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 check values and other connected vacuum products and technique.
HangZhou Ever-PowerVacuum Pumps Co.,Ltd. We’ve the strongest improvement potential of vacuum pumps and vacuum equipments technologic.
Organization has innovative design, Sophisticated gear, the largest vacuum pumps check center in China, also has already established the strict Q/C systemas per ISO9001 common. You can find total 25 main series of vacuum tools, Our solutions are broadly used in departments of metallurgical, developing supplies, petroleum, environmental, proteion, chemical, medicine, textiles, food, aerospae, electronic, power, national defence industries and science study and so on.
2.LIQUID (WATER) RING VACUUM PUMPS
Operating principle and functions:
For the series SK, 2SK, YK and 2YK liquid ring vacuum pumps, multi-vane impeller is fixed ecceentrically within the pump casing. When the vanes rotate, the liquid while in the casing forms a liquid ring that is definitely concentric with all the pump casing under the centrifugal effect, the cubage amongst liquid and vanes have a periodic change, so the function of pumping be carried out. Liquid ring vacuum pumps are from the attributes of low energy consumption and minimal noise. They will be made use of to pump water vapor, inflammable and explosive gasoline likewise as ordinary gases. With particular products utilized for key parts, they are able to also pump corrosive gas. Appropriate actuating medium or at times pumped medium is usually selected as actuating liquids, so the pumps can just about take care of all broadly used for light, chemical, meals, electric electrical power and pharmaceutical industries, and so forth.
