Your cart contains  0 items
Quick Order
Last Order
Diamed # Qty.
Need more items?

2 Stage Teflon Pump, 20L/min. 6 Torr

2 Stage Teflon Pump, 20L/min. 6 Torr
2 Stage Teflon Pump, 20L/min. 6 Torr


  • Maintenance Free!
  • Uses NO Water or Pump Oil!
  • Perfect for: Rotary Evaporators, Gel Dryers, Solvent Recovery Systems, Desiccators, Vacuum Ovens, Vacuum Filtreation & De-Gassing
  • Pure transfer and evacuation
  • Highly compatible with vapours and condensation
  • Chemically-resistant
  • Therefore, suitable for highly aggressive or corrosive gases and vapours
  • Environmentally friendly
  • Gastight, leakage rate approximately 6 x 10-3 mbar x l/s. Not tested in serial production.

The chemically-resistant series N820.3FT.40P diaphragm pump is a two-stage unit with an integrated PowerDry self-drying system. There is a wide range of applications for this pump in laboratories, especially whenever clean vacuum is required and most gases must be pumped down. Examples include vacuum-drying of vacuum oven chambers for drying or heat-treating substances and components or steam sterilizers for sterilizing instruments, vessels, filters and textiles. Due to its high resistance to aggressive media, this pump can be used universally.

The heart of these very compact pumps are KNF structured diaphragms (PTFE-coated). These patented diaphragms were stress-optimized using the Finite elements method. As a result, we were able to make the pumps smaller while increasing the service life of the diaphragm.

The KNF PowerDry system allows condensed liquid to be blown out of the pump heads at high speed during evacuation. The vacuum in the vessel is not distrubed. The drying cycle can be adjusted to the requirements of the individual process using three variables. After drying, the pump reaches a better vacuum and is able to evacuate significantly faster compared with pumps without a drying system.

Included with Purchase:

  • 1 x KNF Vacuum Pump
  • 1 x Power Cord & Instruction Manual


No accessories available at this time


Delivery (I/min) 20
Ultimate Vacuum (Torr) 8
Operating Pressure (PSI) 15
Connectors for Tube (in.) ID 3/8
Permissible gas & ambient temperature +5° to 40° C
Voltage/Frequencies 115 V, 60 Hz
Motor Protection IP 44
Power P1 130 W
Operating Current 1.2 A
Weight 21.2 lbs
Dimensions 31.2 x 22.0 x 17.7 cm
Warranty 1 Year
I Need a Quote

Reviews Quantity: