Welch 2034 0.9 cfm DryFast 2-Head Diaphragm Chemical Duty Pump
Reference:
Manufacturer: Welch Pumps
Welch 2034 DryFast 0.9 cfm PTFE Diaphragm Vacuum Pumps are great for rotary evaporators, these 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. Economical DryFast vacuum pumps are perfect for tough lab applications.
Free three feet 3/8" white premium food grade silicone vacuum tubing included.
In stock
Customize your product
Payment Providers
The Welch 2034 is a two-head DryFast diaphragm pump for everyday rotary evaporation. Pulling down to 9 Torr, it is well matched to medium-boiling solvents such as water and toluene, and to small vacuum ovens.
The pump is built for chemical vapours. Its heads are solid PTFE, the diaphragms are PTFE, the valves are Kalrez and all other wetted surfaces are fluorinated plastic, so solvent, acid and base vapours do not attack it. PTFE diaphragms also avoid shedding particles back into the process.
The control knob on the front lets you set vacuum precisely, which helps prevent bumping and foaming during evaporation. With no oil to change and no cold trap needed to protect it, upkeep is limited to the occasional diaphragm and valve kit.
| Electrical requirements | 110 or 220 Volts 60Hz single phase, 0.2 HP, 150 Watts |
| Application | Rotary Evaporation/Distillation (medium volatility solvents <110C B.P., volume ~ 1 liter), Vacuum ovens - small, pumping harsh vapors & gases |
| Pumping rate | 0.9 cfm |
| Ult. vacuum pressure | 9 torr |
| Maximum vacuum | 29.6 in. Hg |
| Vacuum connection | 3/8" hose barb |
| Adjustable vac./gas ballast | Yes |
| Pump dimensions (LxWxH) | 13.8 x 6.8 x 8.8" |
| Shipping dimensions (LxWxH) | 21 x 14 x 15" |
| Pump weight | 21.25 Lb |
| Shipping weight | 25 Lb |
| Certification | UL, CSA |
| Warranty | One year |
| Downloads | Users manual, product brochure |
Standard Package
| Welch 2034 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 |
Reviews
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.
Reviews from Google Maps
