Welch Wob-L Pressure/Vacuum Dry Pump, 230V 60Hz 1Ph

Welch Wob-L Pressure/Vacuum Dry Pump, 230V 60Hz 1Ph

SKU: 2534C-01

Welch, 2534C-01, Wob-L 34 l/min 1 Phase Pressure/Vacuum Dry Pump with North American Plug, 230V - 60Hz

Reliable Wob-L Piston pumps are perfect for many common laboratory vacuum applications. Features: Vacuum and Pressure - to 70 Torr (27.2"Hg). Includes Vacuum and Pressure Regulators and Gauges - simple to adjust and monitor vacuum level and delivery pressure. 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.


  • Economical
  • Oil Free
  • Adjustable Vacuum / Pressure


  • Aspiration
  • Vacuum Filtration
Applications Filtration (1 to 4 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
Type Laboratory Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz 1.2 (34)
Ultimate Pressure 70 (93)
Max imum Vacuum 27.2
Max Pressure PSIG (pascal) 50 (5 x 105)
Motor Horsepower (watts) 1/8 (93)
Adjustable Vac. / Gas Ballast Yes
Tubing Needed 3/16 (5)
Intake Thread NPT 1/4
Overall Dimensions L x W x H in. (cm) 8.1 x 8.8 x 10 (20.6 x 22.4 x 25.4)
Ship Weight 17 (7.7)
Shipping Carton Dimensions L x W x H in. (cm) 15.3 x 12.3 x 12.7 (39 x 31 x 32)
Intake Catch Jar Yes
Exhaust Catch Jar Yes
Adjustable Vacuum Knob
Adjustable Pressure Yes
Vacuum Gauge Dial
Pressure Gauge Dial