DIAPHRAGM VACUUM PUMPS AND COMPRESSORS Concept The diaphragm vacuum pumps from KNF are based on a simple principle -an elastic diaphragm, fixed on its edge, moves up and down its central point by means of an eccentric. In this way the medium is transferred using automatic valves. Thanks to the KNF modular system, the parts used to transfer the gases can be made from materials with varying degrees of resistance. The customer has a choice of pump drives ranging from a selection of motors to explosion-proof models. No contamination of the media due to oil-free operation approx. 6 x 10-3 mbar x l/s (not tested in serial production) even when in constant use The diaphragm pumps offer a high level of performance despite their compact construction style, as well as an excellent price performance ratio. They are required especially in the fields of analysis, chemicals, medicine and production technology. The pumps are used for transferring and sucking gases, taking samples (even liquids in a vacuum), evacuating vessels and compressing gases in process systems and vessels.

PERFORMANCE DATA PERFORMANCE DATA Type MOTOR DATA

HEAD CONNECTIONS N 145.2 A_EHeads with pressure side in parallelN 145.2 S_EHeads with pressure side in parallel ACCESSORIES

An elastic diaphragm is moved up and down by an eccentric (see illustration). On the down-stroke it draws the air or gas being handled through the inlet valve. On the up-stroke the diaphragm forces the medium through the exhaust valve and out of the head. The compression chamber is hermetically separated from the drive mechanism by the diaphragm. The pumps transfer, evacuate and compress completely oil-free. ■ Range of use: Transferring air and gases at temperatures between +5 °C and +40 °C. ■ Permissible ambient temperature: ■ Please check the compatibility of the materials of the pump head,...