Chapter 9 Flashcards
An electrical control switch that actuated the vacuum pump and senses the pressure at the end of the vacuum return main
Vacuum switch
A steam heating fitting used to elevate condensate in a vacuum steam heating system
Lift fitting
An auxiliary condensate holding tank used when total gravity flow to the vacuum pump receiver is not possible
Accumulator tank
A steam heating device that maintains the pressure differential between the supply and return piping in a sub-atmospheric steam heating system
Differential controller
A device for the conveyance, compression, or mixing gasses, vapor, liquids, or solids in which a gaseous or liquid medium serves as the motive force.
Jet type vacuum pump
A steam heating system that can operate at pressures both above and below atmospheric pressure
Vapor steam
A boiler control device used to regulate the pressure a steam boiler produces graduated in ounces, not pounds, of pressure
Vapor stack
A two pipe steam heating system in which a vacuum is mechanically maintained on the return side of the system
Vacuum steam heating system
A steam heating device in a vapor steam heating system used to return water to a steam boiler
Boiler return trap
A modern steam heating system in which a vacuum can be mechanically maintained on the steam supply piping as well as the condensate return piping
Variable vacuum piping
