Diaphragm Pumps for Air, Gases and Vapours LABOPORT® Chemically-resistant Diaphragm Vacuum Pumps Technical features: 100% oil-free transfer Pure transferring and evacuation of gases 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. Similar to original product Series LABOPORT® N 840 FT.18 Pumps ATEX compliant according to ATEX II 2G IIB+H2 T3X internal atmosphere only The chemically-resistant series N 840 diaphragm pumps are single-head, dry-running devices used in a wide range of laboratory applications. They transfer and pump down without contamination. Technical data: Delivery (l/min) 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. Connectors for tube (mm) ID 10 Permissible gas and ambient temperature +5...+40 °C Mains 230V/50Hz Material in contact with the pumped media Type/Order No. Pump head N 840 FT.18 TFM™ PTFE Ultimate vacuum (mbar abs.) 100 Operating pressure (bar g) Motor protection Operating current With thermal switch and power fuse Motors with other voltages and frequencies on request. 1) Dimensions and performance characteristics Pump down time for 10 l receiver Performance characteristics 1013 Flow capacity l/min (Litre at STP) KNF reserves the right to make changes.

Spare parts Description 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: [email protected] KNF reserves the right to make changes.