Pacific service magazine . ar case happened in an-other district. This was a hatchery. In ahatchery a constant temperature must bemaintained. The operation of a boosterat the noon and night peaks was thecause of increased gas use in the hatch-eries, with the result of increase in tem-perature. It was only necessary to turndown the burner, but usually there wasno one to do this. The installation of ahouse regulator adjusted lower than thelowest pressure in the district has elimin-ated this complaint. INSTALLATION In the installation of mains certain fun-damentals must be observed, accompaniedby
Pacific service magazine . ar case happened in an-other district. This was a hatchery. In ahatchery a constant temperature must bemaintained. The operation of a boosterat the noon and night peaks was thecause of increased gas use in the hatch-eries, with the result of increase in tem-perature. It was only necessary to turndown the burner, but usually there wasno one to do this. The installation of ahouse regulator adjusted lower than thelowest pressure in the district has elimin-ated this complaint. INSTALLATION In the installation of mains certain fun-damentals must be observed, accompaniedby a certain amount of practical ex-perience. The first can be obtained frombooks, the second and important detailcan only be learned from personal serv-ice, with eyes open, under a competentforeman. The depth at which mains should belaid is of great importance, as in this dayof heavy traffic the pipes must haveample protection. In no case should thisdepth be less than thirty inches. Ofcourse the exact depth depends upon the. Lead runner in place and pouring pot. Pacific Service Magazine 69 presence of other subsoil structures. Asit is necessary to lay pipes upon a gradesufficient to properly drain them to drippots, and as it is economical and goodpractice to lay as long a line as possiblewithout such drips, it often develops tobe quite a problem to avoid getting toodeep. Too deep ditching increases the ex-pense of initial installation as well as thesubsequent tapping and laying of servicepipes. When the grade and flow of thegas in the pipes is in the same directionthe bottom of the trench may be almostlevel, but if the contrary is the case andthe flow of condensation is against theflow of gas, then a grade of one-fourthinch for each twelve feet length must beallowed. It is the best practice to gradeall pipes and maintain the depth betweena minimum of thirty inches and a maxi-mum of four feet. Soil conditions require study. Pipesshould never be laid in ash or a trench
Size: 2069px × 1208px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorpacificg, bookcentury1900, bookdecade1910, bookyear1912
