Welch 2163 6.1 Cfm Full Chemical-Resistant 8-Head Diaphragm Pump

The Welch 2163B-01 is a high capacity full chemical-resistant, 8-head, oil-free dry diaphragm vacuum pump with all-aluminum contact surfaces and deep vacuum capability. Oil-Free, portable, full chemical-resistant, means less maintenance and no more frequent and costly oil change, or cross contamination.   Specifications  Electrical requirements  110v 60Hz single phase or 220v  Pumping rate  7.8 cfm   Gasket material  All-PTFE  Ultimate vacuum level  6 torr / 8 mbar  Maximum vacuum  29.9 in. Hg  Inlet/Outlet  KF16 flange  Adjustable vac./gas ballast  No  Unit dimensions  21 x 10 x 12" (LxWxH)  Shipping dimensions  28 x 16 x 20" (LxWxH)  Shipping weight  90 Lbs