Welch® WOB-L Fluid Aspiration Vacuum Pumps
Image SKU Description Maximum Vacuum Ultimate Pressure Free Air Displacement Electrical Quantity Price Add to Cart
2511B-01 WOB-L Pressure Vacuum Station 21.3 in Hg 219 Torr (292 mbar) 0.39 cfm (11 L/min) 115V, 60Hz, 1Ph 1 Each
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2511B-75 WOB-L Aspirator & Pressure Transfer Station Vacuum Pump 21.3 in Hg 219 Torr (292 mbar) 0.39 cfm (11 L/min) 115V, 60Hz 1 Each
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Welch Standard Duty vacuum pumps use dry, oil-free WOB-L® Piston technology to deliver industry-leading, strong pumping dynamics that support filtration, drying, aspiration, parts forming, and other rough vacuum applications.

Welch Standard Duty dry vacuum pumps can be used for such vacuum applications as cell culture media sterile filtering/aspiration, DNA/RNA/Plasmid extraction, vacuum ovens, vacuum filtering, vacuum bag parts forming, sampling, cell harvesters, pick and place, package integrity testing, turbidity testing, Rice porosity testing, air sampling and many other laboratory and industrial applications.

*Note: Standard duty dry pumps are not recommended for pumping organic, acidic or basic vapors.

Model Number 2511
Applications Filtration, Aspiration, Desiccation, Replace water aspirator, Vacuum Drying
Type Laboratory Vacuum Pump
Free Air Displacement @60Hz 0.39 cfm (11 L/min)
Free Air Displacement @50Hz 0.55 m3/hr (9.2 L/min)
Ultimate Pressure 219 Torr (292 mbar)
Maximum Vacuum 21.3 in Hg
Max Pressure PSIG (pascal) 33 (3.3 x 105)
Motor Horsepower 1/30 HP (25 kW)
Tubing Needed 3/16" ID (5 mm)
Intake Thread NPT 3/16" ID (5 mm)
Overall Dimensions LxWxH in. (cm) 7.6x4.5x7.5 (19.4x11.4x19.1)
Ship Weight 6(2.7)
Shipping Carton Dimensions LxWxH in. (cm) 11x7x8.3 (28x18x21)

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