. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. Fig. 18. Union. Fig. 19. Flange Joint. screws, screwed into the beams or joists. When fireproof con-struction is used, the hangers are either clamped to the lowerflanges of the /-beams or attached to iron plates embedded in themasonry above the arches. The requirements of a satisfactoryhanger are that it shall be adjustable to the proper alignment ofthe pipe and have sufficient lateral movement to swing with theexpansion and contraction of the pipe without straining. Hangersare us
. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. Fig. 18. Union. Fig. 19. Flange Joint. screws, screwed into the beams or joists. When fireproof con-struction is used, the hangers are either clamped to the lowerflanges of the /-beams or attached to iron plates embedded in themasonry above the arches. The requirements of a satisfactoryhanger are that it shall be adjustable to the proper alignment ofthe pipe and have sufficient lateral movement to swing with theexpansion and contraction of the pipe without straining. Hangersare usually placed from 10 to 13 feet apart on straight runs ofpipe, with extra ones at bends or where other special conditionsrequire them. Fig. SO shows an adjustable hanger with lag screwfor attaching to a wooden ceiling, while Fig. 21 is provided witha clamp for fastening to an /-beam. Where pipes run near thefloor they are usually supported on rolls which rest in small cast-iron bases screwed or bolted to the floor. (iSee Fig. 22.) Pipe Expansion.—As pipes expand about ly^ inches in each100 feet when low pre
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectventilation, bookyear
