Fire hydrants shall be manufactured in accordance with AWWA Standard C-502, latest revision, or as specified herein, whichever is the more stringent requirement. Fire hydrants shall be designed for 250 P.S.I. working pressure. Records of production testing shall be made available to the Water Board upon request. Fire hydrants shall be of the compression type, closing with the line pressure and opening against the line pressure. Fire hydrants shall be of the dry barrel type with at least two (2) drain outlets and shall be of a "dry top" construction so that the main operating rod threads are never exposed to water when the hydrant is in the open position. The "dry top" shall be packed with grease or filled with oil when the hydrant is assembled. The "dry top" shall be fitted with "O" ring seals to keep water out of the "dry top." Fire hydrants shall have a main valve with a 5¼" opening which is to be situated below ground in the "shoe" of the fire hydrant or in the end of the lower barrel at the point where the lower barrel is connected to the shoe. The lower barrel shall be attached to the “shoe” by bolted, screwed or welded connection. The use of keys or pins are not acceptable methods of connecting lower barrel to “shoe”. Hydrants are to be designed in a manner that will allow the removal of all working parts through the top of the hydrant; repairs to be accomplished without excavating hydrant. The seal and valve are to be constructed of bronze and installed in the hydrant in a manner that will allow the valve assembly to be screwed into a bronze seat ring that is attached to the shoe of the hydrant, or the lower barrel of the hydrant at the shoe.
