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KNF diaphragm pump, 8 mbar ultimate vacuum, 20 l/min | 3-8503

SKU: 3-8503

20 l/Min
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Excl. Tax: €1,594.90 Incl. Tax: €1,897.93
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Diaphragm pumps are double-head, dry-running devices used in a wide range of laboratory applications. They transfer and pump down without contamination. The pumps are available in various versions differing in the materials which contact the media.
Order Nr.: 3-8503
Pump head PTFE, Membran PTFE coated, Valve FFPM

Technical features:

  • 100 % oil-free transfer
  • Pure transferring, evacuation and compression of gases
  • Version for aggressive or corrosive gases and vapours
  • Maintenance-free
  • Environmentally friendly

Permissible gas and ambient temperature: +5 to +40 °C
Power supply: 230 V/50 Hz
Motor protection: IP 44
Power: P1 120 W/ 245 W model 3-8504
Operating current: 0.7 A/ 1.5 A model 3-8504
Gastight, leakage rate: approx. 6 x 10-3 mbar x l/s

Technical Data:
MIN pressure 8 mbar abs.
For inner hose diameter 1 10,0 mm
Type of protection IP 44
Operation electric
Ouput connection type 0
Pump type vacuum pumps (with and without membrane)
Voltage 230 V
Input connection type 0
With special chemical resilience Yes
Application pump Evacuate/ Suction out
Power 120 W
Pump head material (wetted) polytetrafluoroethylene (PTFE)
Height 207 mm
Weight 9,3 kg
For medium air/ gases/ vapors
MAX pressure 2 bar abs.
Length 154 mm
Width / Breadth 312 mm
Valve material (wetted) perfluorinated rubber (FFPM/FFKM)
Membrane material polytetrafluoroethylene (PTFE)
MAX transportation capacity 20 l/Min
Vacuum pump type Vakuum-Membranpumpe
Vacuum membrane pump type Vakuum-Membranpumpen für Gase, ölfrei
Number of pump buttons 1
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