Cyclopedia of heating, plumbing and sanitation; a complete reference work . rrying a single riser to the attic, large enoughto supply the entire building; then branching and running dropsto the basement. In this system the flow of steam is downward, aswell as that of water. This method of piping may be used with goodresults in two-pipe systems as well. Care must always be taken thatno pockets or low points occur in any of the lines of pipe; but if forany reason they cannot be avoided, they should be carefully modification of this system, adapting it to large buildings, isshown in dia
Cyclopedia of heating, plumbing and sanitation; a complete reference work . rrying a single riser to the attic, large enoughto supply the entire building; then branching and running dropsto the basement. In this system the flow of steam is downward, aswell as that of water. This method of piping may be used with goodresults in two-pipe systems as well. Care must always be taken thatno pockets or low points occur in any of the lines of pipe; but if forany reason they cannot be avoided, they should be carefully modification of this system, adapting it to large buildings, isshown in diagram in Fig. 29. The riser shown in this case is one of *?*•» SealeH Return ??I SI Il Sealed Return ff t Fig. 29. Out-Pipe Circuit System. Adapted to a LargeBuilding. 64 HEATING AND VENTILATION 55 several, the number depending upon the size of the building; andmay be supplied at either bottom or top as most desirable. If steamis supplied at the bottom of the riser, as shown in the cut, all of thedrip connections with the return drop, except the upper one, should.
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