WELCH CRR-1B CAPTURE, 230V 50Hz 1Ph, Belt Drive Rotary Vane Vacuum Pump

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 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.