Welch Self-Cleaning Dry Vacuum System 2025
This Welch dry vacuum pump has been fully tested, inspected and verified to be in great working condition.
Includes a 60 Day Warranty!
Tested to below 9 torr
Includes Welch 2025 & Power Cord
- Automatic Self-cleaning purge maintains efficiency, extends diaphragm life
- Free air displacement: 35 L/min (1.2 CFM)
- Incremental ballast switch enables fast response to bumping / foaming
Complete oil-free dry vacuum systems for rotary evaporators and concentrators. Corrosion-resistant PTFE diaphragm vacuum pump systems enable superior control and efficiency for each evaporation. Provides controlled solvent stripping in flasks up to 5 L. Use 9 torr Model 2025 for solvents with atmospheric B.P. <120o C. Includes analog gauge and vacuum regulation. Inlet and exhaust separators protect pump and lab atmosphere.
Specifications
| Model Number | 2025 |
| Applications | Concentrator - Gel Dryer Combination, Rotary Evaporator, and other |
| Type | Laboratory Vacuum Pumps |
| Free air displacement: 35 L/min (1.2 CFM) | 1.2(34) |
| Ultimate Pressure, torr | 9 |
| Max Pressure PSIG (pascal) | 29.5 |
| Adjustable Vac. / Gas Ballast | 1/5 |
| Tubing Needed | Yes |
| Intake Thread NPT | 1/4 |
| ISO Exhaust / Intake Flange | 3/8 |
| Overall Dimensions LxWxH in. (cm) | 13.6 x 12 x 11.3 (34.5 x 30.5 x 28.7) |
| Ship Weight (lbs/kg) | 30 (16.4) |
| Intake Catch Jar | Yes |
| Exhaust Catch Jar | Yes |
Product ID # 2228
