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L <br /> L <br /> B . Fittings <br /> All underground fittings shall be ductile iron with mechanical or manufacturer' s <br /> mechanically restrained joints. Fittings shall conform to the following : <br /> it 1 ) Fittings for pipe shall be compact ductile iron conforming to AWWA C 153 . Fittings <br /> shall have a minimum pressure rating of 350 psi . All fittings and the appropriate <br /> number of downstream and upstream joints must be restrained. <br /> 2) All fittings shall be lined and coated as specified for ductile iron pipe. <br /> Ir 3 ) Retainer glands or thrust blocks for restraint shall not be permitted. <br /> C . Joints <br /> 1 ) Push on Joints - Joints for D .I. pipe shall be bell and spigot, rubber gasket <br /> compression, push-on type as specified in AWWA C111 (ANSI A21 . 11 ) . Special <br /> fittings and joints shall be considered for specific installation. <br /> 2) Mechanical Joints - Mechanical joints may be used for downstream restrained joint <br /> pipe. In this circumstance, the joint shall be restrained in accordance with the <br /> following paragraph C.3 ) d. <br /> 3 ) Restrained Joints - Fittings used for changes in alignment, size reduction, valves and <br /> plugs shall all be restrained along with the appropriate number of downstream and <br /> upstream joints. Restraint shall be by the use of mechanical methods . As indicated <br /> on the drawings, pipe lengths located upstream and downstream of restrained fittings <br /> shall also be restrained. Method of joint restraint shall be as follows : <br /> a. Ductile iron pipe with manufacturer' s mechanical restrained joints using <br /> locking rings or wedges may be utilized. These restraints shall be American Pipe <br /> "LOK-FAST" joints, McWane "SUPER LOCK" or approved equal. <br /> b . Ductile iron pipe and fittings with mechanical joint ends shall be restrained <br /> with Ebba Iron "MEGA-LUG" grip type restrainers, series 1100 . <br /> C . Ductile iron pipe with push-on joint ends shall be restrained with "UNI- <br /> FLANGE", large diameter, series 1390 restrainers, or approved equal . <br /> d. Retainer glands or locking gaskets shall not be approved as mechanical <br /> restraints. <br /> 4) Gaskets - All gaskets shall be manufactured of an elastomeric material . The gasket <br /> shall provide a positive, tight seal under all combinations of joint and gasket <br /> tolerances. Installation and lubrication of gaskets shall be as directed by the <br /> manufacturer. <br /> D. Foundation Rock <br /> 02534- Sanitary Sewer Force Mains <br /> 02534 - 3 <br /> �r <br />