Equalizer pipe

Heating · How They Work · printed page 192 (PDF page 193)

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Book index entries

Equalizer – Pipe for Steam Heating Steam Heat – Equalizer Pipe Steam Heat – Systems

Text in the illustration

air vent
exhaust flue
supply main
main vent
returning condensate
hot steam
boiler water line
steam boiler
water 212°F
P
an equalizer pipe is used to make sure that the pressure on the boiler water and the return pipe water are the same
wet return
burner
cross section

Generated explanation

A cross-sectional schematic shows a steam boiler supplying a radiator on the floor above through a supply main. Red arrows indicate rising hot steam, while blue arrows indicate returning condensate flowing toward the wet return and boiler. An equalizer pipe connects the boiler's steam-side piping to the wet return, with an annotation explaining that it maintains equal pressure on the boiler water and return-pipe water. The boiler is shown with a burner, exhaust flue, water-level gauge, and dashed boiler water line; the radiator air vent and a main vent are also identified.

Components

steam boiler equalizer pipe supply main wet return condensate return piping radiator radiator air vent main vent burner exhaust flue boiler water-level gauge radiator supply valve

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