KNF LABOPORT SD Self-drying Vacuum Pump N 840.3 FT.40.18

Item number: KNF_28020

EAN: 4064343210065

Category: KNF

Manufacturer: KNF

Price on application


KNF LABOPORT SD Self-drying Vacuum Pump N 840.3 FT.40.18

The chemically-resistant series N 840.3 FT.40.18 diaphragm pump is a twin-head unit with an integrated KNF self-drying system. There is a wide range of applications for this pump in laboratories, especially whenever clean vacuum is required and moist gases must be pumped down. Examples include vacuum-drying of vacuum drying 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 self-drying system allows condensed liquid to be blown out of the pump heads at high speed during evacuation. The vacuum in the recipient remains constant. 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.

Technical features
  • Pure transferring and evacuation
  • Highly compatible with vapours and condensation
  • Chemically-resistant
  • Therefore suitable for highly aggressive or corrosive gases and vapours
  • Maintenance-free
  • Environmentally friendly
  • Gastight, leakage rate approx. 6 x 10-3 mbar x l/s, not tested in serial production

Max. Conveying capacity: 2,04 m³/h
Model of pump: diaphragm pump
Shipping weight: 16,00 Kg
Product weight: 13,50 Kg
Technical data N 840.3 FT.40.18
Delivery (l/min)1) 34
Ultimate vacuum (mbar abs.) 10
Operating pressure (bar g) 1
Connectors for tube (mm) ID 10
Permissible gas and ambient temperature +5...+40 °C
Mains 230V/50Hz
Motor protection IP 44
Power P1 245 W
Operating current 1.5 A
Weight 12.9 kg
Dimensions L x H x W (mm)
With thermal switch and power fuse
341/239/189

1)
at atm. pressure


Material in contact with the pumped media
Type Pump head Diaphragm Valves
N 840.3 FT.40.18 PTFE PTFE-coated FFPM