Mechanical Contracting & Plumbing January-December 1912 . rfect, but it is something to go onfor almost everybody that has anythingto say about steam traps, neglects toteil what they are. In general there may be said to bethree classes of steam traps; siphontraps, return traps and discharge traps. The return traps are used, as prev-iously mentioned, for the purpose of re-turning the waters of condensation tothe boiler. The trap is constructed sothat it has a live steam connection andcertain means of controlling the dis-charge of the trap; such as a valve or afloat. In some cases the trap is so
Mechanical Contracting & Plumbing January-December 1912 . rfect, but it is something to go onfor almost everybody that has anythingto say about steam traps, neglects toteil what they are. In general there may be said to bethree classes of steam traps; siphontraps, return traps and discharge traps. The return traps are used, as prev-iously mentioned, for the purpose of re-turning the waters of condensation tothe boiler. The trap is constructed sothat it has a live steam connection andcertain means of controlling the dis-charge of the trap; such as a valve or afloat. In some cases the trap is so con-structed that it will tilt and discharge. Steam is admitted into the trap forthe purpose of making the pressure with-in the trap the same as that of theboiler into which it discharges. A dis-charge trap comes under the classifica-tion oi those which allow the condensa-tion to pass to some place having apressure less than the trap. Buckettraps, float traps, expansion traps andcertain tilting traps are some of the dif-ferent kinds of discharge As to the force required to elevatewatej by a trap it may be stated that,generally, for every pound of steam car-ried the trap will elevate the water twofeet. Some traps will do better thanthis. Comparing the work of a steam pumpwith that of a steam trap, the trap willwork with much less power. The workthai would require anywhere from twoto power in a steam pump carthe done with less than half a horse pow-er on a steam trap. If a man is running a plant and throw-ing away the waters of condensation heis wasting a lot of good money in thecourse ol each year, and he needs apractical education on the subject whichit rs up to the steamfitter to furnishhim. He will burn less coal if the condensa-tion is returned hot, to the boiler thanas if he pumped fresh cold water intothe same. Some of the different places wheresteam traps can be used to advantageare on steam separators, vacuum pans,bleeders, and brewers kettles. If you
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplumbin, bookyear1912
