(a) Pipe. All pipe shall be centrifugal cast iron, Class 150, with mechanical joints of the stuffing box type adapted for use of a gasket, cast-iron gland and bolts conforming to ASA specifications A21.6 and A21.111 and shall have a "half thickness" cement lining and a bituminous seal coat conforming to ASA specification A21.4. If approved, a rubber seal joint using a molded rubber gasket may be used in lieu of the mechanical joint.
Bell and spigot pipe and special fittings, with ends conforming to AWWA C100-08 standard dimensions and otherwise in accordance with requirements of this section, may be used with lead under special conditions.
(b) Fittings. All fittings shall be cast iron, Class 150 minimum, conforming to ASA specification A21.11, with a lining as per subsection (a) hereof.
(c) Specials. All special fittings shall be cast iron and shall comply with ASA specification A21.10.
(d) Valves and Valve Boxes. All valves shall conform with AWWA specification C- 500, latest revision, designed for 150 psi working pressure, hub or mechanical joint, iron body, bronze mounted, double disc with internal wedging and discs free to rotate 360 degrees, nonrising stem gate valves with operating nut, and shall open by turning counter-clockwise.
All valve boxes shall be cast iron, adjustable two-piece, with five and one-fourth inch shaft and flanged base. The cover shall be marked "water".
(e) Fire Hydrants. All fire hydrants shall be a two-piece protective case and barrel to screw into an elbow, such as the Mathews modernized hydrant as manufactured by Kennedy, or an approved alternate, with a six-inch inlet, provided with a five-inch valve, two, two and one-half inch hose nozzles, a four and one-half inch pumper nozzle and an operating nut turning counter-clockwise to open. The main valve drain shall be threaded.
All hose connections shall have bronze male threads and a square operating nut to match those on existing City hydrants, and shall measure eighteen inches from the center line to the ground.
(f) Installation. Pipe and accessories shall at all times be handled with care to avoid all damage. Whether moved by hand, skids or hoist, material should not be dropped or bumped against pipe or accessories already on the ground or against any other object on the ground. The interior of all pipe and accessories shall be kept free from dirt and foreign matter at all times. Valves and hydrants shall be kept drained and stored before installation in a manner protecting them from damage due to freezing or trapped water. All pipe shall be laid in the bedding of No. 6 limestone and maintained to the required lines and grades. Fittings, valves and hydrants shall be installed in the required location with joints centered and properly bolted and all valves, valve boxes and hydrants shall be plumb. No hydrant, valve or valve box shall be located in such a manner that it will interfere with maintenance of an existing drainage ditch.
Valve boxes shall be installed so that no shock or stress can be transmitted to the valve. The valve box shall be centered over the operating nut of the valve with the box cover flush with the finished grade or as may be directed. Valve and valve boxes shall be installed between all hydrants and the water main.
Fire hydrants shall be set on a suitable concrete bed and shall be provided with a proper drainage of coarse gravel or crushed stone from two feet below the bed or at least six inches above the drain in the hydrant. The stone drain shall not be connected to a sewer. The City Standards shown in Appendix A shall be followed. Fire hydrants shall be painted after installation as directed by the Director of Public Service.
(g) Connections to Existing Mains. All connections to existing mains shall be under the direction of the Director of Public Service, who shall arrange a schedule for their operation.
(Ord. 69-35. Passed 10-27-69.)