Chemical Duty Diaphragm Vacuum Pumps and Systems

THE PNEUMATIC COMPONENT SUPERSTORE

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

Overview of Welch Diaphragm Pump Families

	DryFast	BTpro	Self-Cleaners	High-Capacity	XPRF
Free Air Displacement, cfm	0.9 to 2.5	1.4 to 6	1.2	2.3 to 7.8	4.5 to 6.9
Ultimate Vacuum, torr	40 to 9	15 to 6	9 to 2	56 to 1.5	100 to 25
Chemical Resistant?	Yes	Yes	Yes	Yes	Yes
Self-Cleaning Feature?	No	No	Yes	No	No
Tunable Vacuum?	Yes	Select Models	Yes	No	No
Explosion-Proof Motor?	No	No	No	No	Yes

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SMC Pneumatics, SMCEtech, Etech, SMC Now and SMC USA are marks currently or in the past used by the SMC Corporation of America. We have no affiliation with Air Logic division of Knapp manufacturing. Product selection is the sole responsibility of the user, regardless of any recommendations or suggestions made by the factory. The user shall make selections based upon their own analysisand testing with regard to function, material compatibility and product ratings. Proper installation, operation and maintenance are also required to assure safe, trouble free performance.
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