Welch® 8-Head Diaphragm Pump

Model 2163

6.1 CFM

SKU: 30-20009

In stock


Diaphragm pumps are designed with a diaphragm built-in that moves up and down. The up movement is going to create a suction that is going to pull liquids through the inlet. The downward motion is going to push them through the outlet.

These types of pumps can handle liquids of varying viscosities--liquids with low levels of friction will move through this pump easily; liquids with higher levels of friction will also pass through this pump easily. Liquids with higher viscosities can include water with mud or sludge in it.

This pump was made in Germany. All components of this piece that come in contact with liquids being pumped are made from chemically resistant materials that make this pump ideal for pumping corrosive gasses or vapors.

Because this machine doesn't require oil in order to run, the misting, handling, and disposal of contaminated oil has been completely done away with.



 Electrical requirements
 110V or 220V, 50/60Hz single phase
 Pumping rate
 6.1 cfm / 174 L/min
 Gasket material  All-PTFE
 Ultimate vacuum level
 6 torr / 8 mbar
 Maximum vacuum  29.9 in. Hg
 10mm hose barb
 Adjustable vac./gas ballast  No
 Unit dimensions  21.25 x 9.25 x 12" (LxWxH)
 Package dimensions  28 x 16 x 20" (LxWxH)
 Shipping dimensions  40 x 48 x 25" (LxWxH)
 Package weight  90 Lbs
 Shipping weight  130 Lbs
 Compliance  cUL (optional, 110V only), CE

Payment & Security

American Express Discover Mastercard Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


Recently viewed