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  • Roots vacuum test temperature and outlet pressure
    Roots vacuum test temperature and outlet pressure Roots vacuum pump means that under the conditions of temperature rise in the nominal ultimate vacuum or vacuum ( refers to a straight platoon Roots vacuum atmosphere ) steady work , the difference ...

  • Vacuum toilets on the train design
    Vacuum toilets on the train design   Our former Green Train is basically using the direct discharge toilets, faeces fall by gravity directly on the track. This practice is not only unsightly, but also very unsanitary. With the speed of the train, toilet direct discharge of sewage genera...

  • The reason water ring vacuum pump cavitation generated and its characteristic curve
    The reason water ring vacuum pump cavitation generated and its characteristic curve The reason water ring vacuum pump cavitation generated by the work of vapor and water ring vacuum compression inadequate. When water ring vacuum pump, the pump pressure is reduced to the work of the local ...

  • Water pump designed irrational factors
    Water pump designed irrational factors   Design pump water from the condensate pump outlet, as a result of condensation of water temperature is generally lower than the exhaust temperature 1 ℃ ~ 2 ℃, while due to work pressure pump condenser pressure lower than about 0.6kPa, correspon...