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Welch™ Standard-Duty Vacuum Pumps

Compact, economical WOB-L™ pumps for aqueous applications

Manufacturer: welch™  2522B01

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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.

Catalog No. 01-051-1A

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Description & Specifications


Model 2522
Weight (English) 11.7 lb.
Width (English) Exterior 8.8 in.
Includes Liquid trap on inlet, vacuum gauge and adjustment knob, exhaust muffler, suction cup feet and handles for convenient transportation
For Tube Size (English) 0.18 in.
Certifications/Compliance CE
Flow Rate 22L/min.
Width (English) 8.8 in.
Length (English) 8.1 in.
Pressure 100psi
Height (Metric) 25.4cm
Weight (Metric) 5.3kg
For Tube Size (Metric) 0.5cm
Height (English) Exterior 10.1 in.
Voltage 115V
Electrical Requirements 115V 60Hz
Hertz 60Hz
Length (English) Exterior 8.1 in.
Horsepower 0.12hp
Shipping Weight (English) 17 lb.
Height (English) 10 in.
Shipping Weight (Metric) 7.7kg
Length (Metric) 20.6cm