Welch™ Standard Duty WOB-L™ Piston Vacuum Pump: Model 2561

For non-chemical applications

Brand: Welch™

Manufacturer Part Number: 2561C-50

Wob-L dry vacuum pump with inlet trap, regulator& gauge

UNSPSC: 41110000

Code: 50

Additional Details:
Additional Details: Weight: 30.00000kg

Product Code. 10095921

Quantity Price
1 £ 1506.5 / Each
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Description and Specification


Horsepower 0.3hp
Voltage 230V
Hertz 50Hz
Height (Metric) 26.7cm
Length (Metric) 43.9cm
Shipping Weight (Metric) 9.7kg
Includes Convenient gauge read cut, pressure adjustment valve, protective separator jar, Euro (Schuko) plug
Pressure 6.7mbar
Certifications/Compliance CE
Flow Rate 1.8L/min.
For Use With (Equipment) Vacuum filtration, vacuum oven, vacuum chamber/roughing, desiccation, aspiration, automation, cell culture
Electrical Requirements 230V 50Hz
For Tube Size (Metric) 0.7cm
Model 2561
Type Vacuum Pump
Weight (Metric) 7.5kg

Wobbling piston wobbles providing air resistance on upward stroke expanding Teflon seal on piston and increases its efficiency for wobble action.

  • Oil free dry pump powered by WOB-L piston
  • Intake/Exhaust thread NPT: 1/4

Model 2561

  • Free air displacement: CFM (L/min) at 60Hz: 2.1 (60); m2/hr at 50Hz: 3.0 (50)
  • Ultimate pressure: 5 torr (6.7mbar)
  • Maximum vacuum in Hg: 29.8
  • Motor: 0.3 hp (250w)

  • For pumping vapors of aqueous solutions including buffers but not for acidic, basic or organic vapors or gases
  • 50Hz units supplied with CE marking

Vacuum filtration, Vacuum oven, Vacuum chamber/Roughing; Dessication; Aspiration; Automation; Cell culture; Glove box