Welch 2042 DryFast 1.2 CFM 2 Torr 2-Head Diaphragm Chemical Duty Pump
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Manufacturer: Welch Pumps
Welch DryFast PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 2 head diaphragm design simplifies maintenance. Choose from seven dry PTFE vacuum pump models with flows up to 40 L / min and adjustable vacuum down to 0.75 Torr. Economical DryFastTM vacuum pumps are perfect for tough lab applications.
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.
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
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•Chemical resistant. •Constructed with corrosion resistant PTFE and perfluoro plastic materials. •Oil-free. •Built in vacuum controllers. •CSA certification. •Available in 110V/60Hz. •Free air displacement @60Hz: 1.2 cfm (35 L/min) •Ultimate pressure: 2 Torr
Free three feet 3/8" white premium food-grade silicone vacuum tubing included.
The Welch 2042 is a two-head DryFast Ultra diaphragm pump that combines the 2 Torr depth of the Ultra series with a higher 35 L/min flow. The extra flow shortens pump-down time on larger rotary evaporators, while the depth handles high-boiling solvents such as DMF. Welch rates the Ultra pumps to strip 2-4 ml/min of DMF at 35 C with a dry ice condenser.
Wetted parts are solid PTFE heads, PTFE diaphragms, Kalrez valves and fluorinated plastics, so the pump stands up to solvent, acid and base vapours. Advanced Vapor Management (AVM) gives precise control when distilling organic solvents.
No oil and no protective cold trap are needed, which keeps running costs low and the bench clean.
| Model | 2042 |
| Free Air Displacement, cfm (L/min) | 1.2 (35) |
| Ult. Vac. Pressure, torr (mbar) | 2 |
| Number heads/Stages | 2/2 |
| Motor Horsepower, HP (watts) | 1/5 (150) |
| Adjustable Vac/Gas Ballast | Yes |
| Tubing Needed, I.D., in (mm) | 1/4 (7) |
| Intake(Exhaust) Thread NPT | M14 (1/8) |
| Weight lbs.(kg) | 21.25 (9.6) |
| Overall Dimensions, LxWxH in.(cm) | 13.8x6.8x8.8 (35x17x22) |
| Ship Weight, lbs (kg) | 25 (11.3) |
| Shipping Carton Dimensions, LxWxH in.(cm) | 21x14x15 (52x35x37) |
| Wired for 110V, 60Hz, 1Ph, Agency | 2042B-01 |
| Wired for 230V, 50/60Hz, 1Ph, Agency | 2042C-02 |
Standard Package
| Welch 2042 chemical-resistant oil-free diaphragm pump | 1 pc |
| White premium food-grade silicone vacuum hose | 3 ft |
| Power Cord with Plug | 1 pc |
| User's manual | 1 pc |
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What customers say about our store
Quick and reliable service provided! - Scheduled an appointment with Wayne the other day for a Dry Ice order pick up, he will go over and above for his customers to make sure we are well taken care of. Even with a broken foot !
Thanks again Wayne!
You've got my business!
Wayne there has an excellent store, he has everything, really nice stuff at good prices, ultimately very fair compared to others. I will certainly be going back for everything I need. Got some things from a different place and spent 50% more, just go see Wayne first, he seems like he wants to help you out more than sell you out the door.
WOW
I'd like to first start with this business witch is great ,location was easy to find with good directions, the services wayne offers are a excellent industry best, I had items shipped and also picked up at business store front both very easy and quick
Also like to add the quality of the equipment sold as anything with logo extractor king is from my experience also again an industry best!
And last owner and…
Great service. Definitely recommend them to all
Great buisness very quality items and prompt phone and online services, backed by the owner who stands behind the product!! AAA service all around.
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