ATEX approved rotary vane vacuum pumps     rotary vane vacuum pumps (non-ATEX)     more ATEX vacuum pumps     BUSCH, Dr.-Ing. K., GmbH, Stammhaus Maulburg - Postfach 1251, 79689 Maulburg, Germany products: BUSCH Enviac vacuum pumps are ATEX certified for Ex II 1/2 G IIB3 T4 with EC type examination, in accordance with directive 94/9/EC (ATEX 95). The technical conception of Enviac vacuum pumps is based on the proven R 5 rotary vane vacuum pumps series. They are designed for industrial applications to pump explosive gas/air and vapour/air mixtures. They are suitable for pumping almost all group IIB3 gases as well as fuel vapours. Enviac rotary vane vacuum pumps are available in three sizes with a suction capacity of 16, 40 an 63m3/h. The pumps are oil lubricated and air cooled and achieve ultimate pressure of 5, respectively 20 hPa (mbar). LEYBOLD Vakuum GmbH Stammhaus - Bonner Str. 498, 50968 Köln, Germany products: TRIVAC D 16 B EX, Explosionsfeste Drehschieber-Vakuumpumpen nach Richtlinie 94/9/EG (ATEX 95) Klassifizierung: - Gerätegruppe: II - Kategorie: 1 G innen / 2 G außen - Zone: 0 innen / 1 außen - Temperaturklasse: T4 - Explosionsgruppe: II B3 und II C Anwendungen: Die zweistufige Drehschieber-Vakuumpumpe TRIVAC D 16 B EX ist zum Abpumpen von explosionsfähigen Gasgemischen der Explosionsgruppen IIC und IIB3 aus Zone 0 geeignet. wie zum Beispiel: Gasbefüllung mit Wasserstoff (IIC), Rektifikation (mehrstufige Destillation)     all rotary vane pump manufacturers (also non-ATEX)     more ATEX vacuum pumps     Keywords     www.vacuum-guide.com