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