Welch 2052 2.3 cfm Full Chemical-Resistant 4-Head Diaphragm Pump

The original Welch 2052 is a full chemical-resistant (not like its cheaper version), 4-head, oil-free dry diaphragm vacuum pump with all-PTFE 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. Ai is now the official dealer of Welch vacuum pumps. These pumps are made in Germany with one year warranty and technical support from Welch Vacuum. Free three feet ($19.99 value) included.             Specifications Specifications   Electrical requirements  110V or 220V 50/60Hz single phase 0.53 HP, 390 watts  Pumping rate  2.3 cfm  Gasket material  All-PTFE  Ultimate vacuum level  1.5 torr / 2 mbar  Maximum vacuum  29.9 in. Hg  Inlet/Outlet  1/4" NPT  Adjustable vac./gas ballast  No  Pump dimensions (LxWxH)  9 x 15 x 7 inches  Shipping dimensions (LxWxH)  10.2 x 16.6 x 7.5 inches  Pump weight  40.3 Lb  Shipping weight  50 Lb