Welch™ Standard-Duty Vacuum Pumps

Compact, economical WOB-L™ pumps for aqueous applications

Manufacturer: Welch™ 2581B50

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Catalog No. 01-257-113

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May be used with buffer solutions but are not recommended for use with acids, bases or organic vapors.

Products in this grouping may have voltages other than the standard US 110/115V. Please review and confirm your selection before completing your order. Some of these products may not be returned.


    Height (English) 12 in.
    Height (Metric) 30.5cm
    Width (English) 7.5 in.
    Length (English) 17 in.
    Length (Metric) 43.1cm
    Shipping Weight (Metric) 14.5kg
    Includes Liquid trap on inlet, vacuum gauge and adjustment knob, exhaust muffler, suction cup feet and handles for convenient transportation
    Certifications/Compliance CE
    Horsepower 0.33hp
    Hertz 60Hz
    Electrical Requirements 115V 60Hz
    Flow Rate 100L/min.
    For Tube Size (English) 0.25 in.
    For Tube Size (Metric) 0.7cm
    Height (English) Exterior 12 in.
    Length (English) Exterior 17 in.
    Model 2581
    Weight (English) 24.5 lb.
    Weight (Metric) 11.1kg
    Width (English) Exterior 8 in.
    Shipping Weight (English) 32 lb.
    Voltage 115V

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