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Welch WOB-L Pump 2581

MFR: Welch Vacuum - Gardner Denver

SKU: 2581B-50

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Description - Click to Expand

Welch-L Pump 2581

***Note: This item has a possible 1-2 week lead time depending on stock availability.***

Product Details

  • Economical
  • Oil Free
  • Adjustable Vacuum

Suggested Applications

Reliable WOB-L Piston pump is perfect for many common laboratory vacuum applications. Features: Vacuum to 5 Torr (29.8"Hg). Includes Vacuum Regulator and Gauge - simple to adjust and monitor vacuum level. Inlet Water Trap - float ball rises to seal off pump from accidental ingestion of water. Muffler quiets pump and filters discharge air. For use with dry or aqueous vapor applications only.

Model Number 2581
Applications Vacuum Ovens 2 to 4.5 ft3 (57 to 127 liters); Glove Box transfer chamber and purge / fill cycles - up to 30 ft3 (0.84 m3)
Type Laboratory Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz 3.5(100)
Free Air Displacement m3/hr (l/min.) @50Hz 4.9(83)
Ultimate Pressure 5(6.7)
Maximum Vacuum 29.8
Maximum Vacuum —-
Motor Horsepower (watts) 1/3 (250)
Adjustable Vac. / Gas Ballast Yes
Tubing Needed 1/4(7)
Intake Thread NPT 1/4
Overall Dimensions LxWxH in. (cm) 17x7.5x12
Ship Weight 32(14.5)
Shipping Carton Dimensions LxWxH in. (cm) 21x12x15 (53x30x38)
Intake Catch Jar Es
Exhaust Catch Jar
Adjustable Vacuum Knob
Adjustable Pressure
Vacuum Gauge
Pressure Gauge