[Amended 4-30-1996 ATM by Art. 39]
Hydrants shall conform in design and manufacture to the latest issue of AWWA Standard C502, "Dry Barrel Fire Hydrants." Acceptable hydrants are the U.S. Pipe Metropolitan 250 Model 94, the Darling B62B and the A423 Mueller 200 Super Centurion.
A. Hydrants shall be manufactured to highest quality and design.
B. Hydrants shall be compression type, i.e., the main valve shall open against and close with water pressure. Hydrants shall be of the dry top design with "O" ring seals to ensure that the operating threads will be protected from water entry. Dry top design is to include a factory-lubricated operating mechanism that allows supplemental lubricant to be added in the field without the removal of the top section. The downward travel of the main rod and valve assembly to the full open position shall be controlled by a travel stop device located in the upper stem section of the rod or have a positive stop in the base of the hydrant shoe. The drain mechanism shall be an integral part of the valve assembly. All internal parts shall be removable through the top of the hydrant when the bonnet has been removed.
C. Hydrants shall comply with the following:
(1) Main valve opening: 5.25 inches.
(2) Outlets:
(a) Hose connections: two to 2.50 inches.
(b) Steamer connection: one to 4.50 inches.
(3) Operating nut size: pentagon 1.50 inch point to flat.
(4) Thread type: national standard.
(5) Shoe: six-inch mechanical joint (range 6.90 to 7.10 outside diameter).
(6) Direction of opening: counterclockwise.
(8) Height (bury line to operating nut): 28.75 inches minimum.
(9) Subseat material: bronze.
(10) Model: traffic (breakaway design).
(11) Color: orange body, black bonnet and caps.
D. All hydrants shall have a permanently mounted marking device approved by the Division.