1925 (#1403-1607) - Laserfiche WebLink

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All gate valves shall be of the size as indicated on the plans and shall have a cast iron body with hub ends,bronze seats, single disc, bronze stem with a 2 inch square nut on th~ stem and must withstand a working pressure of 150 pounds per square inch. The hub ends of the valves must ~e of such di- mensions that a Standard Class "B" cast iron pipe can be in- serted with ample space to make a proper lead joint. All valves must be of first class material and work- throu~hout and of Standard make and shall open to the mauship left. (d) FIRE HYDBANT: All fire hydrants she]] be Keystone Fire ~ydrants with ~ c,st iron column ~nd bury piece h~vlnm an internal dia- meter of 8 inches. Tbs bury p~ece sh~ll be S8 inbhes long w~ a bell elbow ~nd foot piece all in one casting and shall also have a standard flange on the upper end to bolt to valve col- All hydrants shall be either 2 or 3 way h2drants as indicated on the plans with 2~ inch hose connection Pacific Coast Thread. All valves must open to the left and be provi- ded with the standard sized pentagon nut on the valve stem or the stem shall be milled to s standard pentagon. The bury piece and valve column flanges must be faced and drilled so that the hydrant can be set with the hose ou*lets at a 45 degree angle to the street. The wives must open full and close silently. Tbs v,]ves, column and bury piece must be first lity material and workmanship ttrou~hout. SECTION ~. EXCAVATION. (a) ALIGNmeNT AND GRADE. The alignment grid grade shall be es shown on the plans and profiles. The sub-grade shall be the exterior bottom of the pipe. The grade line shown ou the profile is the invert or interior bottom of the pipe. The excavation shall be made sufficient distance below the grade llne to ~]low for the placin~ of the sewer invert and the concrete foundation if such found,tlon is shown on the plgn or ~rofile. Shoudl the trench be excavated to g depth greater than required, the contractor shall refl]l such excess excavation with screened Fravel wblch sh~ll be tamped until solid. (b) ~I~T~ OF TRMWC~. The trench s~a]l be excavated ~t least twelve (12) ioches greater iu width than tbs outside diameter of the pipe to be l~id and at least six (6) inches clearance shall be allowed on each side of the pipe. (c) EXCAVATED ~ATERIAL. The earth taken from the trench shall be deposited neatly along the sides in a manner such as not to obstruct the street more than is necessary and umn.