BASIC STEAM HEATING SYSTEMS - gogeisel.com

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HS-901(A) BASIC STEAMHEATINGSYSTEMSnOne-PipenTwo-PipeBas ic SteamHeatingSystems2In a one-pipe, gravity-flowsystem, each HEATING unit has asingle pipe connection throughwhich it receives STEAM andreleases condensate at thesame time. All HEATING units and the end ofthe supply main are sufficientlyabove the boiler water line sothat condensate flows back tothe boiler by a two-pipe system, steamsupply to the HEATING units andcondensate return from heatingunits are through separate accumulation in piping andheating units discharges fromthe system through the openvent on the condensate pumpreceiver. Piping and heatingunits must be installed withproper pitch to provide gravityflow of all condensate to thepump LOOP2ND LOOPHARTFORD LOOPSTEAMSUPPLY MAINEQUALIZERLOOP RISERWATER LINESUPPLYVALVESAFETYFACTORSTATIC HEADPRESSURE DROPDRAIN15"MAINVENTDRIP CONNECTIONWETRETURNVENTVALVEHEATINGUNIT2 "STEAMCONDE

Applications— One-Pipe Systems 4 Parallel Flow Wet Return Up-Feed WATER LINE BOILER VENT VALVE SUPPLY VALVE DRIP CONNECTION HARTFORD LOOP WET RETURN PITCH 1 INCH IN 20FEET

  Return, Boiler, Feed