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Welch™ Standard-Duty Vacuum Pumps

Compact, economical WOB-L™ pumps for aqueous applications

Supplier:  Welch™ 2511B01

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Catalog No. 01-055-60

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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.



Compact, economical WOB-L™ pumps for aqueous applications

  • Ideal for filtration, vacuum ovens, aspiration and chamber roughing
  • Protect against accidental ingestion
  • Wetted parts resist corrosion from moisture

Order Info

For 115V 60Hz. All pumps weigh less than 25 lb. (11.4kg).



0.03 hp
2.7 kg
115 V 60 Hz
5 lb.
11 L/min.
7.5 in.
7.6 in.
4.5 in.
115 V
6 lb.
2.3 kg
60 Hz
19.1 cm
19.4 cm
Vacuum Pump
33 psi


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