This Welch Duo-Seal 1376 Belt Drive Rotary Vane Vacuum Pump is in used condition, has been tested and is guaranteed to be fully functional. This pump came from a local lab that had surplus equipment. We urge customers to view all photos as they show overall condition, included accessories and useful information.  Please feel free to contact us with any questions.

Please Note: Oil will be drained prior to shipping and will not be included. Oil must be obtained and filled by buyer prior to running pump.


  • Legendary longevity and exceptional durability.
  • Low pump rpm, cool running, longer service life.
  • Large oil reservoir dilutes contaminants.
  • High oil feed port draws cleanest oil.
  • Suitable for toughest applications.
  • Low maintenance.
  • Available in 115V/60Hz and 230V/60Hz.
Free air displacement @60Hz: 10.6 cfm (300 L/min)
Ultimate Pressure 1x10-4 Torr (1.3x10-4 mbar)