2008-213 (5) - Laserfiche WebLink

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e a. Push-on ductile iron pipe joints shall be restrained with " EBBA IRON " series 4500 restrainers , pipe manufacturer ' s restrained joints , such as U . S . Pipe "TR-FLEX GRIPPER RING" , American Pipe "LOK-RING" or " LOK- FAST" joints , or approved equal . b . Mechanical joint ductile iron pipe and fittings shall be restrained with "EBBA IRON" , Megalug Series 1100 restrainers , or approved equal . C, Set screw type Adapter or Retainer glands shall not approved. 5 . Sections of polyethylene pipe and fittings shall be joined in the field by the butt fusion process into one continuous length at the job site. The joining method shall be the heat fusion method and shall be performed in strict accordance with the pipe manufacturer ' s recommendations . The heat fusion equipment used in the joining procedures shall be capable of meeting all conditions recommended by the pipe manufacturer . D . Gaskets - All gaskets shall be manufactured of an elastomeric material . The gasket shall provide a positive, tight seal under all combinations of joint and gasket tolerances . Installation and lubrication of gaskets shall be as directed by the manufacturer. 2 . 16 VALVES .r A . Plug Valves Plug valves shall be of the non -lubricated, eccentric type with neoprene faces and have flanged joint ends as shown on the Plans and shall be for hand operated service. Ports on valves to 20-inches shall beat least 80% of full area. Valve bodies shall be semi-steel . Seats shall have a welded-in overlay of not less than 90 % pure nickel on all surfaces contacting the plug face. Valves shall have stainless steel permanently lubricated upper and lower plug stem bushings . Valves shall be designed so they can be repacked without removing the bonnet from the valve body or the actuator, and the packing shall be adjustable. Actuators shall clearly indicate the valve position and an adjustable stop shall be provided to set closing torque. Plug valves shall be DeZurik Series 100 or approved equal , suitable for a working pressure of 150 psi . Plug valves shall be provided with concrete supports to prevent the transmittal of shear forces to the P . V . C . pipe. B . Check Valves Check valves shall be of the horizontal , single-disk, non-slam , swing type, having a 150 psi pressure rating . The valves shall be equipped with an externally mounted lever with adjustable weight for control of closing speed. Access Covers and Guide of valve shall be designed for non-buried service. Valves shall have semi -steel bodies with 125 lb . flanged ends . The discs shall be semi - steel with elastomeric seat rings designed for use with raw sewage. 2 . 17 WATER SUPPLY A . A metered water supply shall be supplied to the pump station by the Contractor as indicated on the Drawings . Contractor shall provide and install the service, backflow preventer, and hose bib as shown on the Drawings . 2 . 18 ELECTRICAL SUPPLY 02539 — Submersible Pump Station (Rev.) 02539- 11