HVAC Vacuum Pumps for Refrigeration Systems

Welch HVAC Vacuum Pumps are used to remove gas, vapors, and other contaminants from refrigeration systems after refrigerant recovery and repair of cooling systems. To ensure the Air Conditioning system is free from contaminants before recharging it with refrigerant, one must maintain a deep and complete vacuum.Our industrial duty HVAC pumps are engineered to deliver deep vacuum for fast evacuation and dehydration. They can pump down quickly reaching 40 microns in hours; not days or weeks like you might experience with a light duty pump.Welch refrigeration and vacuum pump for HVAC come in two pump styles. DuoSeal® belt-drive vacuum pumps are proven performers with low RPMs and a long service life. Our CRVpro direct-driven vacuum pumps are portable and powerful.

About Welch HVAC Vacuum Pumps

DuoSeal rotary vane vacuum pumps are proven performers with low pump RPM to ensure long service life with durable precision machined steel rotor, cast iron intake, exhaust ring and metal vanes. DuoSeal models are used on the most demanding service applications such as purge pump on absorption chillers and Industrial/commercial chillers.
CRVpro models of rotary vane vacuum pumps are portable but powerful and come with forced oil lubrication and a protective coating against the corrosive effects of chemicals on key internal parts. CRVpro pumps are used where high flow is required, and a lightweight and small footprint is desired for service applications such as rooftop HVAC equipment and RTUs.

Selecting an HVAC Vacuum Pump

In addition to vacuum performance and evacuation time, there are several factors to consider when selecting a vacuum pump for refrigeration systems. Here are a few features of Welch HVAC pumps that you might consider when making your selection.

• Large Oil Reservoir - dilutes contaminants to avoid multiple oil changes during a job
• Gas Ballast - Ability to Handle High Water Vapors
• Pump Size and Performance - Meet the tonnage needs of cold storage, industrial and commercial chillers, rooftops HVAC equipment, RTU’s and absorption chillers

With our quick pump down and fast delivery, Welch HVAC pumps are the ultimate solution to your refrigeration servicing needs. If you are looking for assistance, reach out to our application specialists, who are happy to help you make a right decision.

In the world of HVAC systems, servicing large chillers presents unique challenges. Reliable vacuum evacuation is essential for maintaining these systems' performance. Welch, a reputable vacuum pump brand, offers solutions tailored for large chiller service. In this guide, we'll explore key factors for selecting Welch HVAC Vacuum Pumps for large chillers, including pump capacity, maintenance, vacuum levels, and durability. Whether you're a seasoned HVAC professional or new to the field, this guide equips you to handle large chiller systems effectively using Welch's technology.