Specifications include, but are not limited to: - (CU 309192) FIRE HYDRANT 4 1/2 FT. BURY LENGTH, PER THE FOLLOWING SPECIFICATIONS: CONFORM TO AWWA C-502, LATEST REVISION, MODIFIED AS FOLLOWS: A. SEC.1.1 MAIN VALVE SHALL CLOSE WITH THE WATER PRESSURE. B. SEC.3.1 HYDRANTS SHALL CONTAIN FRANGIBLE SECTIONS NEAR THE GROUND LINE DESIGNED TO BREAK ON IMPACT (TRAFFIC OR BREAKAWAY TYPE DESIGN). DESIGN OF FRANGIBLE SECTION SHALL PERMIT FACING OF UPPER BARREL SECTION BY INFINITE DEGREE AND SHALL NOT RELY ON WEAKENED BOLTS. C. SEC.3.2.1 MAIN VALVE ASSEMBLY REMOVAL SHALL BE ACCOMPLISHED FROM THE TOP OF THE UPPER BARREL BY MEANS OF A SHORT LIGHTWEIGHT SEAT REMOVAL WRENCH UTILIZING THE HYDRANT STEM. D. SEC.3.2.1.1 THE MAIN VALVE SEAT RING SHALL BE BRONZE AND SHALL BE THREADED INTO A BRONZE DRAIN RING. E. SEC.3.2.4 THE MAIN VALVE OPENING SHALL BE 4-1/2 INCH DIAMETER.
