1963 825 Ordinance - Laserfiche WebLink

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(b) LAYING TIC PIPE: lvhere necessary to deflect pipe from a straigrit li ne, either vertical or horizontal, tl"ie degree of deflection shall be approved by the Engineer, lrhenever it is necessary to cut pipe this shall be done in a neat and worlffnanlike manner without daniage to the pipe, leaving the end. smooth and at right angles to the axis of pipe. 1`To payment 1:~i11 be made for the portion of the pipe cut off and not used in the line. At times tivhei-i pipe laying is not iii progress the open ends shall be closed by approved means and no trench water shall be permitted 'to enter the pipe. ~ . (c) V~LRIATIOn?S Iii DII~:%?~S:i 0i`d5 ; The outside diameter of the spigot end of Uell-and-spigot pipe ,varies 1~~ith the type, size, and class of pipe. There is only one joir_t size for each diameter of mechanical- joint pipe. Thus, difficulty may be met tivhen attempts are made to connect existing bell-and-spigot lines to mechanical-joint pipe. ?Then such a connection must be made, an adapter having a fitting bell and a mechaiical-joint socket is manufactured and may be rzsed.:; %;If 'the existingline ends in a spigot, either a standard sleeve or a special fitting consisting of a bell and. mec~lanica~_•- ~~oi~z~~ soclc~, inay be used, provided that the fitting betvreen the sp~.got end of the existing line and the bell to be conr:ected to it is consistent with the normal fit o f bell-and-spigot pipe . (d) CLi?=11~?IidG ~a i~?) i1SSF~_ ~'LIi~G JOI1?T : The last S in. outside of the spigot and inside of the bell of rnecrianica.l-joint p~_pe shall be thorough- ly cleaned to remove oil, grit, tar (other than standard coating), and other foreign matter from the joint, and then painted. vrith a soap solu- tion made by dissolving one-half cup of granulated soap in 1 gallon of water. The cast-iron ~•1ancl s'rial:]_ then be sl.i_pped on the spigot end of the pipe ~.:ith the lip e..tension of the gland tovrard the soclcet or bell end. The -rubber gasket sh~.lll be painted with the soap solution and placed on the spigot end vrith the thick edge tovra-rd the gland. (e } BOLT Ii'?G Ol'' JGIl~i`I' ; The entire section of the pipe shall be pushed forvrard to seat the spigot encl in the bell. The gasket shall then be presserl into place vrithin the bell, bei ng careful to have the gasket evenly located around the entire joint. The cast-iron gland shall be moved along the pipe into positi on for bolting, all of the bolts in- serted, and the nuts screwed up ti htly i~ith the fingers . All nuts shall be tightened z~rith a suitable (preferably torque-limiting) rmench. The torque :eor various sizes of bolts shall be as follows: Size Range of Torque ii1. e ft.-1.b. 5/8 40- 60 3/4 60- 90 1 70-10U 1--1/!~ ;'G-120 Alats spaced 1&U deb?°ees apart shall be tightened alternately in order to produce an equal pressure on all parts of the Eland. Reference s1Lould. be made to the i~l?otes on ?~~;ethod of Installation~~ incl.del in American Standard Specificat~_ons for a Mechanical Joint for .;a.s+, Iron Pressure Pipe and Fittings--A21.1i (A1::Tt`~ C111). See also ?~?ote ;'b.~.. _7_