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IN STOCK Welch WOB-L Pump

from $345.00sale $310.50 (save 10%)

Reliable WOB-L Piston pumps are perfect for many common laboratory vacuum applications. 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. One year warranty.

+ Model 2511B-01 - Model 2511B-01
  • • Economical
  • • Oil Free
  • • Light, Portable

Handy utility vacuum pump is perfect for basic lab operations .Portable, dry or aqueous applications only, vacuum / pressure.

Suggested Applications

  • • Vacuum Filtration

+ Model 2522B-01 - Model 2522B-01
  • • Economical
  • • Oil Free
  • • Adjustable Vacuum / Pressure

Reliable WOB-L Piston pumps are perfect for many common laboratory vacuum applications. Features: Vacuum and Pressure - to 100 Torr (26"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.

Suggested Applications

  • • Replace Water Aspirator
  • • Vacuum Filtration

+ Model 2534B-01 - Model 2534B-01
  • • Economical
  • • Oil Free
  • • Adjustable Vacuum / Pressure

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.

Suggested Applications

  • • Aspirator
  • • Vacuum Filtration

+ Model 2546B-01 - Model 2546B-01
  • • Economical
  • • Oil Free
  • • Adjustable Vacuum / Pressure

Reliable WOB-L Piston pumps are perfect for many common laboratory vacuum applications. Features: Vacuum and Pressure - to 60 Torr (27.6"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.

Suggested Applications

  • • Desiccator
  • • Replace House Vacuum
  • • Replace Water Aspirator
  • • Solvent Degas
  • • Vacuum Filtration

 

Specifications 2511B-01 2522B-01 2534B-01 2546B-01
Applications Filtration, Aspiration, Desiccation, Replace water aspirator, Vacuum Drying Filtration (1 to 2 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying Filtration (1 to 4 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying Filtration (1 to 6 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
Type Laboratory Vacuum Pumps
Free Air Displacement cfm (l/min.) @60Hz 0.39(11) 0.76(22) 1.2(34) 1.6(45)
Free Air Displacement m3/hr (l/min.) @50Hz 0.55(9.2) 1.1(18) 1.7(28) 2.3(38)
Ultimate Pressure 219(292) 100(133) 70(93) 60(80)
Maximum Vacuum 21.3 26 27.2 27.6
Max Pressure PSIG (pascal) 33(3.3 x 105) 100(106) 50(5 x 105) 100(106)
Motor Horsepower (watts) 1/30(25) 1/8(93) 1/8(93) 1/4(190)
Adjustable Vac. / Gas Ballast Yes
Tubing Needed 3/16(5)
Intake Thread NPT 3/16 in. Hose 1/4
Overall Dimensions LxWxH in. (cm) 7.6x4.5x7.5 (19.4x11.4x19.1) 8.1x8.8x10 (20.6x22.4x25.4) 10x7.5x9 (25.4x19.1x7.7)
Ship Weight 6(2.7) 17(7.7)
Shipping Carton Dimensions LxWxH in. (cm) 11x7x8.3 (28x18x21) 15.3x12.3x12.7 (39x31x32)
Intake Catch Jar --- Yes
Exhaust Catch Jar --- Yes
Adjustable Vacuum --- Knob
Adjustable Pressure --- Yes
Vacuum Gauge --- Dial
Pressure Gauge --- Dial

 

 
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Price Chart
Cat Code Description Model # H.P. Wattage QuantityPrice Add Quantity
2511B-01 Laboratory Vacuum Pump 2511B-01 1/30 HP 25 W Each$345.00$310.50
2522B-01 Laboratory Vacuum Pump 2522B-01 1/8 HP 93 W Each$585.00$526.50
2534B-01 Laboratory Vacuum Pump 2534B-01 1/8 HP 93 W Each$670.00$603.00
2546B-01 Laboratory Vacuum Pump 2546B-01 1/4 HP 190 W Each$740.00$666.00
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Vacuum Pumps for Vacuum Filtrations
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