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Piston PumpsWOB-L® 2581

Item# 2581B-50 2581B-24 2518C-24

The Welch Piston Pump WOB-L 2581 is engineered for robust and efficient vacuum performance, ideal for laboratory and industrial applications. Discover more WOB-L Piston Pumps on our category page.

Delivery time will be confirmed in the order

The WOB-L® 2581 dry piston pump is ideal for pumping water vapor, and for applications with vacuum requirements above 6.7 mbar. The pump provides continuous, reliable, high flow vacuum. It is light and compact. Its oil-free operation reduces maintenance. Pump comes with inlet liquid trap, mounted vacuum gauge and vacuum regulator.

Note: pump is not recommended for pumping organic, acidic and basic vapors.

Article Number

U2581C-50

Max. pumping speed at 50 Hz in m³/h (l/min)

4.9 (81.7)

Max pumping speed at 60 Hz in m³/h (l/min)

6 (100)

Max. pumping speed at 60 Hz in cfm (l/min)

3.5 (100)

Ultimate pressure in mbar (Torr)

6

Wired for

230V, 50Hz

Dimensions (W/D/H) in mm

432/191/305

Weight kg (lbs)

11.2 (24.7)

*Without handle
  • Replacement container (Glas) for WOB-L® 2561, 2567, 2581, 2585 - U1415B
  • Connection-Kit 5 for Vacuum oven - 404005
  • Connection-Kit 6 - 404006
  • Maintenance Kit for WOB-L® 2581 - U2581K-03
  • Seal Kit for WOB-L® 2581 - U2581K-04
  • Vacuum regulator for WOB-L® 2581, 2585 - U2585K-50
  • Post-Pump Protection - Exhaust Silencer for WOB-L® 2581 - U1412E