Lab catalogue - KNF NEUBERGER - #19

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Text version of the page
Data Sheet E 222
Diaphragm Pumps for Air, Gases and Vapours
D
LABOPORT® Diaphragm Vacuum Pumps
Technical features:
■ 100% oil-free transfer
■ Pure transfer, evacuation and compression
■ Highly compatible with vapors and condensation
■ Version for slightly 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.
Series LABOPORT® N 820.3 A_.18 Pumps
Series N 820.3 diaphragm pumps are double-head, dry-run-ning devices used in a wide range of laboratory applications. They transfer and pump down without contamination. The heart of these very compact pumps is a KNF structured diaphragm. This patented diaphragm was 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 pumps are available in various versions differing in the materials which contact the media.
Technical data: N 820.3 AN.18 N 820.3 AT.18
Delivery (l/min)1' 22 20
Ultimate vacuum (mbar abs.) 8 8
Operating pressure (bar g) 1 1
Connectors for tube (mm) ID 9 ID 9 Permissible gas and
ambient temperature +5...+40 °C +5...+40 °C
Mains 230V/50Hz 230V/50Hz
Motor protection IP 44 IP 44
Power P1 120 W 120 W
Operating current 0.7 A 0.7 A
Weight 9.3 kg 9.3 kg
Dimensions LxHxW (mm) 304/204/110 304/204/110 With thermal switch and power fuse
Material in contact with the pumped media
Type/OrderNo. Pump head Diaphragm Valves
N 820.3 AN.18 Aluminium CR NBR
N 820.3 AT.18 Aluminium PTFE-coated FFPM
Motors with other voltages and frequencies on request.
1) at atm. pressure
Accessories and spare parts
Description
Details
Order No.
Silencer
G 1/4
007007
Hose connector
G 1/4, PVDF AD 10 mm
004658
Spares kit
for N 820.3 AN.18
058080
Spares kit
for N 820.3 AT 18
057358
KNF reserves the right to make changes.
1.12

pageCatalog pdf di En 2012-05-22-30