Water level gauge

Heating · Components and Problems · printed page 196 (PDF page 197)

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Book index entries

Steam Heat – Water Level Gage Water Level Gauge for Steam Heat Steam Heat – Systems

Text in the illustration

the water level gauge (sight gauge, sight glass) should be installed so that the boiler water line is about midway up the gauge when the boiler is at rest
don't fire up the boiler if you don't see water in the gauge
radiator
supply main
equalizer pipe
returning condensate
main vent
F & T trap (steam trap)
boiler water line
water
steam boiler
Hartford Loop
wet return
burner
cross section

Generated explanation

A building cross section shows a steam boiler connected to a radiator by a supply main and condensate-return piping. A sight glass mounted beside the boiler indicates the water level, with a dashed line marking the boiler water line. The annotation specifies that the resting boiler water line should be about midway up the gauge and warns against firing the boiler when no water is visible in the gauge. The piping diagram identifies an equalizer pipe, Hartford Loop, wet return, main vent, and F & T steam trap, with arrows indicating steam and condensate flow.

Components

steam boiler water level gauge (sight glass)burner radiator supply main equalizer pipe condensate return piping Hartford Loop wet return main vent F & T steam trap flue connector

Materials

glass metal piping

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