Data Sheet E 262

Diaphragm Pumps for Air, Gases and Vapours

INNOVATIVE
TECHNOLOGY
WORLDWIDE NEUBERGER

LABOPORT® Chemically-
resistant Diaphragm
Vacuum Pumps
Technical features:

100% oil-free transfer

Pure transfer, evacuation and
compression

Highly compatible with vapours and condensation

Chemically-resistant

Therefore suitable for highly aggressive or
corrosive gases and vapours

Maintenance-free

Environmentally friendly
Series LABOPORT®
Gastight, leakage rate approx. 6 x 10-3 mbar x l/s,
N 820 FT.18, N 820.3 FT.18 Pumps not tested in serial production.

The chemically-resistant series N 820 and N 820.3 dia- Technical data: N 820 FT.18 N 820.3 FT.18
phragm pumps are single- and double-head, dry-running Delivery (l/min)1)) 20 20
devices used in a wide range of laboratory applications. They Ultimate vacuum
transfer and pump down without contamination. (mbar abs.) 100 8
Operating pressure
(bar g) 1 1
The heart of these very compact pumps is a KNF structured
Connectors for tube (mm) ID 10 ID 10
diaphragm. This patented diaphragm was stress-optimized Permissible gas and
using the Finite Elements method. As a result, we were able ambient temperature +5...+40 °C +5...+40 °C
to make the pumps smaller while increasing the service life Mains 230V/50Hz 230V/50Hz
of the diaphragm. Motor protection IP 44 IP 44
Power P1 130 W 120 W
Operating current 0.9 A 0.7 A
Weight 7.1 kg 9.3 kg
Material in contact with the pumped media
Dimensions L x H x W (mm) 268/207/159 312/207/154
Type/Order No. Pump head Diaphragm Valves With thermal switch and power fuse
N 820 FT.18 PTFE PTFE-coated FFPM Motors with other voltages and frequencies on request.
N 820.3 FT.18 PTFE PTFE-coated FFPM 1) at atm. pressure

Dimensions and performance characteristics

Pump down time for 10 l receiver Performance characteristics

N 820 FT.18 N 820 FT.18

Vacuum atm. Press.
1013 20
Flow capacity l/min

800
15
(Litre at STP)

600
10
mbar

400

5
200

0 0
0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 0 100 200 300 400 500 600 700 800 900 1013
min mbar

KNF reserves the right to make changes. KNF 7/2005 Produced in Germany
 Data Sheet E 262

Diaphragm Pumps for Air, Gases and Vapours

Pump down time for 10 l receiver Performance characteristics

N 820.3 FT.18 N 820.3 FT.18

Vacuum atm. Press.
1013 20

Flow capacity l/min

800
15

(Litre at STP)
600
10
mbar

400

5
200

0 0
0 1 2 3 4 5 6 0 100 200 300 400 500 600 700 800 900 1013
min mbar

Dimensions (mm)
approx. 159
N 820 FT.18 approx. 268

for tube ID 10

approx. 207
260 110

approx. 154
N 820.3 FT.18 approx. 312
for tube ID 10

approx. 207

304
110

Spare parts
Description Details Order No.
Spares kit for N 820 FT.18 058078
Spares kit for N 820.3 FT.18 057358

KNF Neuberger GmbH, Alter Weg 3, D-79112 Freiburg, Tel. ++49(0)7664/5909-0, Fax ++49(0)7664/5909-99, www.knf.de, E-Mail: info@knf.de
KNF reserves the right to make changes. KNF 7/2005 Produced in Germany