Air conditioning vacuum pump is used to remove unwanted air and water vapor from the air conditioning system when it is under service. When the air conditioner needs to be repaired, the first step taken is usually to recover the refrigerant from the system for reuse later. Once the recovery job has been done, you can now proceed to do the necessary troubleshooting and repair work. The next step is to check and make sure that the system is leak free else steps will have to be taken to rectify this. The evacuation process is the next step in which the vacuum pump is used to remove the air and moisture from the refrigerant system. Once this is done, the charging process can be carried out before doing a full test on the systems DHVE vacuum Pump manufacture by our Company we have been sale of these vacuum pump in many year is good work for Ac charging unit system and also available in cheap price Applications:- 1. Laboratories/Research Center 2. Air Condition and Refrigerators 3. Graphics Machine 4. Printing Machine 5. Air Sampling 6. Vacuum Coating 7. Filtrations 8. Gas Charging in ACs and Refrigerators