In the world of vacuum technology, particularly within HVAC, laboratory, and automotive applications, one common question continues to arise: are vacuum pump fittings universal, or are they specific to each system? This question becomes especially important when servicing an air cond vacuum pump, so...

Understanding the Refrigerant Evacuation Process The process of refrigerant evacuation is a critical step in maintaining the integrity and efficiency of a vacuum pump condenser system. Whether it's during maintenance, installation, or repair, removing all traces of air, moisture, and non-condensable...

Shell tube evaporators have been a staple in the refrigeration industry for decades. These units are designed to efficiently transfer heat between two fluids, typically refrigerant and water or air. At Kewei, we manufacture several types of shell tube evaporators, including the flooded shell and tub...

Modern HVAC systems increasingly adopt reversible technology to provide both cooling and heating from the same unit. While this innovation improves energy efficiency, it creates unique challenges for filtration and moisture control. Traditional suction line filter drier designs struggle in these app...

Whether servicing a residential unit or managing a massive commercial cooling system, having a dependable refrigeration tool kit can make a significant difference in both the quality of the job and the longevity of the equipment. With the growing complexity of systems, choosing high-quality HVAC ref...