Edwards EXT-250 Turbomolecular Vacuum Pump

Edwards EXT-250 Turbomolecular Vacuum Pump

Inlet Flange ISO 100K  

Exhaust Flange KF-25

Vent Port 1/8” BSP

Purge Port 1/8” BSP

Pumping Speed

Nitrogen 220 Liters/Second

Helium 230 Liters/Second

Hydrogen 180 Liters/Second

Compression Ratio

Nitrogen >1x10⁸

Helium 2x10⁴

Hydrogen 1500  

Recommended Backing Pump Edwards RV-3  

Cooling Method Forced air or water  

Edwards EXT-250 turbomolecular vacuum pump price