Welch 2052 2.3 cfm Full Chemical-Resistant 4-Head Diaphragm Pump
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Manufacturer: Welch Pumps
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.
These pumps come with a one year warranty and technical support from Welch Vacuum.
Free three feet 3/8" white premium food grade silicone vacuum tubing included.
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The Welch 2052 is a four-head, oil-free diaphragm pump that reaches 1.5 Torr, deep enough for vacuum ovens and for evaporating solvents with higher boiling points. Four heads give it a steady 2.3 cfm while it stays quiet, rated under 44 dBA.
The PTFE wetted path makes it suitable for harsh chemical service, and because it runs dry there is no oil to change and no oil vapour to contaminate the process. It works well on vacuum ovens, rotary evaporators and degassing.
Maintenance is quick and infrequent: when the diaphragms wear, a service kit replaces them. The 1/4 inch NPT ports accept the included threaded hose barbs.
| 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) | 20 x 14 x 11 inches |
| Pump weight | 40.3 Lb |
| Shipping weight | 50 Lb |
| Noise | <44 dbA |
| Certification | UL, CSA (110V model), CE |
Standard Package
| Welch 2052 2.3 cfm full chemical-resistant oil-free diaphragm pump | 1 pc |
| Threaded Hose Barbs (220v unit only comes with 1pc hose barb) | 2 pc |
| White premium food grade silicone vacuum hose (3 ft) | 1 pc |
| Power Cord with plug | 1 pc |
| User's manual | 1 pc |
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