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Whats the best type of vacuum pump to use for auto A/C service?

April 26, 2017Auto best pump service type vacuum

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Whats the best type of vacuum pump to use for auto A/C service?

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Typically there isn’t a ‘better’ type of pump to use. It just has to be able to pull deep vacuum in order to boil moisture and remove the air that may be in the system. When you’re deciding on a vacuum pump, you should pay more attention to the ‘micron’ rating. That’s the level of vacuum that the pump is rated for. The lower the number, the better the pump. Water only starts to boil at levels of vacuum under 1,500 micron. Deep vacuum is typically at levels under 750. You should really aim for 500 microns or under. The most popular type of vacuum pump is the rotary vane design. You can read more information on vacuum pumps in our ‘fast track’ section about using vacuum pumps for auto A/C service. If you own a rotary vane vacuum pump, you really need to see this information about What Vacuum Pump Manufacturers Really Don’t Want You to Know.