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Welch 2042B-01 PTFE Diaphragm Vacuum Pump

$4,389.00 USD Excl. tax
$4,389.00 USD Incl. tax

Clean operation (oil free), low cost of ownership, highest reliability – these are just a few benefits that customers can appreciate when they use a diaphragm pump for laboratory or industrial applications. With a broad range of diaphragm pumps – ultimate vacuum from 75 to 1 mbar and peak flow rates up to 138 l/min – Welch offers specific pump families and models for a variety of uses.

Diaphragm pumps work completely without oil which has several advantages for the user:

Less maintenance compared to other technologies saves time and money Dry vacuum allows cleaner workplace and environment Uncontaminated pumping of gases results in cleaner samples and no risk of oil back-streaming


Model Number
Built-in Adjustable Vacuum
Ultimate Pressure
Inlet Connection
Tubing Needed, I.D. in. (mm)
1/4 (7)
115V Order Number
Free Air Displacement
1.2 (35)
Dimensions, LxWxH, in (mm)
Gas Ballast
Motor Power, HP (kW) at 60 Hz
1/5 (150)
Exhaust Connection
M14 (1/8)
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