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Welch Vacuum Application I Vaccum/Pressure Control with Welch Single-Head Wob-L Pumps

How Welch’s WOB-L technology simplifies lab vacuum and pressure workflows

Labs running filtration, aspiration, or degassing processes often face inconsistent vacuum levels, noisy operation, and frequent maintenance. Welch’s single-head WOB-L pumps address these issues with oil-free performance, stable control, and compact design—ideal for benchtop setups where reliability and footprint matter.

This video walks through how the WOB-L pump works, what makes it different, and where it fits best. It’s designed for lab managers, technicians, and procurement teams evaluating vacuum solutions for routine tasks.

Why WOB-L Pumps Matter

Welch’s WOB-L pumps use a piston-driven mechanism to deliver consistent vacuum and pressure without oil contamination. That means fewer service interruptions and cleaner results. The single-head configuration is optimized for moderate-duty applications like:

  • Vacuum filtration
  • Solid-phase extraction
  • Degassing liquids
  • Aspiration of biological samples

Compared to diaphragm pumps, WOB-L units offer higher flow rates and better pressure stability. They’re also quieter than rotary vane systems and require less maintenance.

FAQs

Typical models reach down to 60 Torr, suitable for most lab filtration and aspiration tasks.