12CFM 1 Hp HVAC Air Vacuum Pump

How many CFM vacuum pump do I need?
To estimate what your CFM needs, look at the tonnage of the systems you work on. Take the square root of that number and you'll get the approximate CFM you need to have to work with that system. Typical residential systems need 4-5 CFM, while commercial and rooftop systems generally need as much as 6-8 CFM or more.

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Founded in 1998, Chongqing Xincheng Refrigeration Equipment Company Limited is located in Chungqing city which is under the direct control of the central government.
As a professional manufacturer, we have accumulated over twenty years of rich experiences in Research and development on refrigeration parts and materials. With advanced equipment and professional R&D team, the quality of our products has become more and more popular among customers. 
In addition to our main manufactured products, we also established long-term business strategy cooperation ship with many leading factories, such as copper products, insulation materials, refrigerant, refrigeration equipment, AC compressor, all kinds of different hand tools and other refrigeration spare parts. All these products and factories are qualified with relevant certificates, such as WaterMark, Kitemark, CSA, SABS, TUV, WHI, WRAS, UPC, BV, CRN, CUPC, CE, RoHS, UL, 3C, CB, ISO9001 and etc.