Welch Chem Duty Diaphragm Pump: Explosion Proof Motor, 4.5 CFM
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Welch Chem Duty Diaphragm Pump: Explosion Proof Motor, 4.5 CFM
Buy Welch vacuum pumps from MSE Supplies at the best value.
Clean operation (oil free), low cost of ownership, highest reliability – these are just a few benefits that customers can appreciate when they use a diaphragm pump for laboratory or industrial applications. With a broad range of diaphragm pumps – ultimate vacuum from 75 to 1 mbar and peak flow rates up to 138 l/min – Welch offers specific pump families and models for a variety of uses.
Explosion proof motor is rated for Class I, Groups C&D and Class II, Groups E, F &G.
•Corrosion resistant.
•Portable.
•PTFE coated aluminum head with PTFE diaphragm liner.
Diaphragm pumps work completely without oil which has several advantages for the user:
- Less maintenance compared to other technologies saves time and money
- Dry vacuum allows cleaner workplace and environment
- Uncontaminated pumping of gases results in cleaner samples and no risk of oil back-streaming
MSE Supplies is an authorized distributor of Welch vacuum pumps.
Technical Data
| SKU# |
2090W-01 (115/230V, 60Hz 1Ph) |
| Welch Model | 2090 |
| Free Air Displacement @60Hz, CFM | 4.5 |
| Ult. Vac. Pressure, Torr | 25 |
| Standard Flange Size | NW25 |
| Weight, lbs | 54 |
| Overall Dimensions LxWxH, mm | 686x287x287 |
Frequently Asked Questions
What hazardous locations is the motor rated for?
The explosion proof motor is rated for Class I, Groups C and D, and Class II, Groups E, F and G.
Is this pump suitable for corrosive vapors?
Yes. It has a PTFE coated aluminum head and a PTFE diaphragm liner, so it resists chemical attack.
Why choose an oil-free diaphragm pump?
There is no oil to change or contaminate your samples, maintenance is lower, and there is no risk of oil back-streaming into your system.