Welch® Vacuum Pumps and Systems
For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have allowed Welch to develop an in-depth knowledge of selecting the correct vacuum pump solution for many laboratory applications.

Welch's innovative engineering provides industry-leading designs for belt-drive and direct-drive vacuum pumps, dry (oil-free/oil-less) PTFE diaphragm pumps and dry WOB-L® piston pumps. Welch also enables walk-away control for vacuum-induced evaporation with our Self-cleaning dry PTFE diaphragm pump systems.

For vacuum maintenance of commercial and industrial refrigeration and HVAC systems, Welch offers a complete line of refrigeration servicing pumps.

Because of the famous Durability of Welch products, many of our pumps are still in service decades after purchase. If you need to repair or refurbish your Welch pump, see our Repair Service for fast restoration at a fair price. For do-it-yourself repairs, find your pump model number for original Welch component repair kits.