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piece and of sufficient design so as not to require a stiffening <br /> member opposite the face plug. <br /> B. Plug valves 6 inches or greater in diameter shall be equipped with <br /> gear actuators, which shall clearly indicate valve position and an <br /> adjustable stop shall be provided. Construction of actuator <br /> housing shall be semi-steel. All gearing shall be enclosed, <br /> suitable for running in oil with seals provided on all shafts to <br /> prevent entry of dirt and water into the actuator. All shaft bearings <br /> shall be furnished with permanently lubricated bearing bushings. <br /> C. Three-way plug valves shall be non-lubricated gear operated. <br /> Valve bodies shall be semi-steel with 125-pound ANSI Standard <br /> flanges, and plugs shall be resilient faced. Three-way valves shall <br /> be 3-way, 3-port, 270-degree turn. <br /> D. Plug valves and actuators shall be as per the Approved <br /> Manufacturer's Product List. <br /> 11.05 AIR RELEASE VALVES <br /> A. The air release valves shall be installed as shown on the <br /> Drawings. Valves shall be provided with a vacuum check to <br /> prevent air from reentering the line. Aboveground air release <br /> valves for wastewater shall be per the Approved Manufacturer's <br /> Product List. <br /> B. The fittings shall be threaded. Belowground air release valves for <br /> wastewater shall be as on the Approved Manufacturer's Product <br /> List. Air release valves for water lines shall be as per the <br /> Approved Manufacturer's Product List. <br /> 11.06 FIRE HYDRANTS <br /> Fire hydrants shall be traffic type, 5W valve opening and manufactured <br /> per the Approved Manufacturer's Product List. Fire hydrants shall comply <br /> with the current AWWA Standard Specification C502-94, or latest <br /> revision, for fire hydrants for water works service. Each hydrant shall <br /> have 6" mechanical joint ends with harnessing lugs ("dog ears") and shall <br /> open by turning to the left (counterclockwise). Fire hydrant shall be of <br /> ample length for 18" clearance above centerline of roadway. It shall be <br /> provided with two 2Y2" hose nozzles and one 5'/a°' pumper nozzle, all <br /> having National Standard hose threads. Nozzles shall have caps <br /> attached by chains. Operating nuts shall be AWWA Standard <br /> (pentagonal, measuring 1'/2" point to flat). Fire hydrants shall be <br /> equipped with "O-Ring" packing. Fire hydrant shall be painted Federal <br /> Safety red. <br /> 11.07 BACKFLOW PREVENTERS <br /> 11 - 3 <br />