A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 316
gles being too abrupt. The enlarge-ments commonly made in pipe fittings are of little conse-quence when steam flows through them, but they retard theflow of water too much ina hot-water heating sys-tem, because the motiveforce of the current isso small in proportion tothe amount of… … Fig. 69. ^^sssszsssm ^^^^^^ shape, and, consequently, are commonly called bends. When common pipe fittings must be employed, the evilmay be mitigated somewhat by carefully reaming out theends of the pipe. The common scrczv union should never beused in hot-water piping; the right and left coupling…
Architecture · Building
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