Welch - 2052B-01 4-Head Chemical Resistant Diaphragm Pump

The original Welch 2052 is a full chemical-resistant, 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. 2.3 cfm high capacity dry diaphragm vacuum pump with PTFE contact surfaces and deep vacuum with extra high flow. The ideal oil-free vacuum pump for large size vacuum ovens and rotary evaporators (must use foreline trap with vacuum oven).

Vacuum depth and level is not regulated so it recommended to use this pump with a control system such as vacuum manifold with control valve or automatic vacuum controller found here.

These pumps are made in Germany with one year warranty and technical support from Welch Vacuum.

 

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
 Certification
 UL, CSA, CE