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3 ) Restrained Joints - Fittings used for changes in alignment of pipe <br /> shall be mechanically restrained. As indicated on the drawings, pipe lengths <br /> located upstream and downstream of restrained fittings shall also be <br /> ' restrained. Method of joint restraint shall be as follows : <br /> a. P .V . C . pipe in diameters 4 " through 12 " shall be restrained at fittings <br /> with " EBBA IRON" series 500, or other approved restrainer. Bell and spigot <br /> joints on P .V . C . pipe in diameters 4 " through 12 " shall be restrained with <br /> " EBBA IRON " series 1500 , or other approved restrainer. <br /> ' b . P . V.C . pipe in diameters over 12 " shall be restrained at fittings with <br /> " UNI-FLANGE" large diameter series 1300-C , or other approved <br /> restrainer. Bell and spigot joints on P .V . C . pipe in diameters over 12" shall be <br /> restrained with " UNI-FLANGE " large diameter series 1350-C , or other <br /> approved restrainer. <br /> ' c . Mechanical joint ductile iron pipe and fittings shall be restrained with <br /> "EBBA IRON", Megalug Series 1100 restrainers , or approved equal . Push-on <br /> ' ductile iron pipe and fittings shall be restrained with pipe manufacturer' s <br /> restrained joints , such as U . S . Pipe " TR-FLEX GRIPPER RING" , American <br /> Pipe " LOK-RING " or " LOK-FAST" joints , or approved equal . <br /> d. Retainer glands shall not approved . <br /> ' 4) Gaskets - All gaskets shall be manufactured of an elastomeric material . The <br /> gasket shall provide a positive, tight seal under all combinations of joint and <br /> ' gasket tolerances . Installation and lubrication of gaskets shall be as directed <br /> by the manufacturer. <br /> D . Foundation Rock <br /> A sieve analysis of Foundation Rock shall conform to the following limits : <br /> Passing 3 /4 " - 100% <br /> Passing 3 /8 " - 20 - 55 % <br /> Passing #4 - 0 - 10% <br /> Passing # 8 - 0 - 5 % <br /> ' E . Buried Identification Tape <br /> Detectable buried identification tape shall be installed over all pipe . <br /> Tape shall be 2 inches minimum width, consisting of a minimum 5 mil overall <br /> thickness with a solid aluminum foil core . Construction shall be 2 mil clear film, <br /> ' reverse print laminated to aluminum foil to 2 mil clear film, making the film <br /> permanently printed . <br /> CADoNvn1oad\techspec-0250 Ldoc SC 5 01 - 4 <br />