Welch™ Self-Cleaning Vacuum System

Complete oil-free dry vacuum systems for rotary evaporators and concentrators

Brand: Welch™

Manufacturer Part Number: 2025-03

Self cleaning dry vacuum pump with dial gauge

UNSPSC: 41110000

Code: 04

Additional Details:
Additional Details: Weight: 30.00000kg

Product Code. 10229801

Quantity Price
1 £ 3414.92 / Each
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Description and Specification


Horsepower 0.2hp
Voltage 230V
Hertz 50Hz
Height (Metric) 28.7cm
Length (Metric) 34.5cm
Shipping Weight (Metric) 16.4kg
Amperage 0.75A
Certifications/Compliance CE, CSA
Flow Rate 35L/min.
Electrical Requirements 230V 50Hz
For Tube Size (Metric) 0.63cm
Material PTFE
Model 2025
Weight (Metric) 13.6kg

Corrosion-resistant PTFE diaphragm vacuum systems enable superior evaporation control and efficiency. Preserve your sample and your time with rapid, controlled solvent stripping from flasks up to 5L. Use 2 torr models for fast stripping of DMF.

Programmable Model 2028 enables walk-away control for up to five vacuum / time methods for 2 solvent samples.


  • Automatic self-cleaning purge maintains efficiency, extends diaphragm life
  • Free air displacement: 35 L/min (1.2 CFM)
  • Incremental ballast switch enables fast response to bumping/foaming
  • Inlet and exhaust separators protect pump and lab air from contaminants
  • Select 9 torr model for atmospheric B.P to 120°C; 2 torr model to B.P. 160°C