Roots Vacuum Pumps 2016 by Leybold

More catalogs by Leybold | Roots Vacuum Pumps 2016 | 40 pages | 2017-05-08

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Page 20 of Roots Vacuum Pumps 2016

ruvac ws/wsu 251 to 2001 roots vacuum pumps with air-cooled canned motors single-stage roots vacuum pump ruvac wsu 2001 advantages to the user typical applications supplied equipment two air-cooled lines ws/wsu each with four pump sizes for applications which require a high pumping speed at pressures between 10-2 and 10-4 mbar 0.75 x 10-2 and 0.75 x 10-4 torr the required quantity of oil is supplied separately with the pump exceptions from this are indicated highly leak-tight air-cooled pumps driven by a air-cooled canned motor lubricated with mineral oil alternatively with lvo 400 over-temperature switch in the stator coil of the motor all elastomer seals made of fpm fkm viton integrated pressure equalization line with differential pressure valve prevents overloading on wsu model optional used where the possibility of ­conta­mination due air ingress or pumped media leakage must be avoided suction or pumping of high-purity or radioactive gases if no other type of oil is stated then mineral oil lvo 100 is used as standard purged with nitrogen for corrosion protection gasket in the intake flange with integrated dirt sieve is used in clean rooms were the air must not be recirculated by the motor‘s fan a frequency converter can be used to operate the ruvac ws 251 to 2001 pumps between 20 and 100 hz no shaft feedthrough to the atmosphere thus particularly leak-tight conversion from vertical to horizontal pumping action can be done from the side of the customer 20 leybold full line catalog fall 2016 leybold