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Designed for Demanding Vacuum Applications

The Welch WOB-L® Piston Pump Model 2567B-50 is built for continuous-duty vacuum performance in laboratory and industrial environments. Its oil-free design eliminates contamination risks and reduces maintenance, while the compact footprint supports benchtop use.

This pump is part of Welch’s long-standing WOB-L® series, known for reliability and low operating costs. The 2567B-50 model includes a thermal protector, quiet operation features, and a corrosion-resistant wetted path. It’s a solid choice for users who need consistent vacuum without the hassle of oil management.

Full Product Manual

Access the official Welch manual for Model 2567B-50 to get detailed specifications, installation instructions, maintenance procedures, and troubleshooting guidance.
WOB-L Piston Pump Model 2567B-50

Key Specifications

Feature

Value

Flow Rate

1.2 CFM (34 L/min)

Ultimate Vacuum

60 Torr

Motor Type

1/8HP, 115V, 60Hz

Noise Level

~50 dB (A)

Weight

10.5 kg (23 lbs)

Wetted Materials

Aluminum, Stainless Steel, PTFE

Thermal Protection

Yes

Inlet/Outlet

1/4"NPT

 

FAQs

Filtration, aspiration, vacuum drying, and degassing in labs and light industrial settings.