(A) Water main piping.
(1) Polyvinyl chloride (PVC) pipe.
(a) All PVC water main piping shall conform to the requirements of AWWA C900, DR14 (Class 200) or ASTM D2241, SDR-21 (200 psi). PVC pipe shall have a cell classification of 12454B or 12454C.
(b) All pipe shall be marked as to indicate appropriate ASTM or AWWA designation and pressure class.
(c) All PVC pipe joints shall be bell and spigot type with elastomeric gaskets conforming to the requirements of ASTM D3139.
(2) Ductile iron pipe.
(a) All ductile iron pipe shall be manufactured in accordance with ANSI/AWWA C151/A21.51 for pipe barrel construction; ANSI/AWWA C151/A21.51 for determining pipe wall thickness; ANSI/AWWA C151/A21.51 for installing cement mortar lining; and ANSI/AWWA C151/A21.51 for construction of pipe fittings.
(b) All ductile iron pipe and pipe fittings shall be mortar lined with bituminous seal coat in accordance with ANSI 21.4.
(c) Unless otherwise shown on the drawings, the thickness class for ductile iron pipe shall be Pressure Class 350 for pipes 12 inches or smaller and Pressure Class 250 for pipes 14 inches or larger.
(d) Ductile iron pipe joints shall conform to the following requirements.
1. Push-on and mechanical. Push-on and mechanical joints including accessories shall conform to ANSI/AWWA C151/A21.51. Bolts shall be high strength cast iron with tee head with hex nuts.
2. Flanged. Flanged joints shall not be used for underground installations, except within structures. Flanged joints shall meet the requirements of ANSI/AWWA C151/A21.51 or ANSI B.16. All flanged joints shall be rated for 250 psi pressure and have ASA 125-pound bolt patterns. All flanged joints shall be furnished with one-eighth-inch thick full face red rubber gaskets.
3. Bell and spigot. Bell and spigot joints shall conform to ANSI/AWWA C151/A21.51.
(B) Fittings. Fittings for all types of pipe shall be ductile iron mechanical joint type manufactured in accordance with ANSI/AWWA C110/A21.10 and having a minimum pressure rating of 250 psi.
(C) Gate valves. Gate valves shall be cast iron body, double disc, non-rising stem type manufactured in accordance with ANSI/AWWA C500. Valves shall have bronze seat and disc rings, o-ring seals and be rated for a maximum working pressure of 200 psi for valves 12 inches and smaller and 150 psi for valves 14 inches and larger. Valves shall be as manufactured by Mueller Company, Kennedy Valve Company or equal.
(D) Inserting valves. Where inserting valves are required on existing water mains, they shall be ductile iron double disc as specified above. Inserting valves shall be Mueller Type H-800 or equal.
(E) Tapping valves and sleeves.
(1) Tapping sleeves shall be iron body with mechanical joint ends and flanged valve end. Sleeves shall be rated for a working pressure of 200 psi through 12-inch sizes and 150 psi when 14 inches and larger. Sleeves shall be suitable for the existing water main material. Tapping sleeves shall be Mueller Type H-615 or H-616, or equal.
(2) Tapping valves shall be iron body, double disc, non-rising, stem gate valves as specified above. Tapping valves shall have mechanical joint by flanged ends as required to connect with the tapping sleeve. Tapping valves shall be Mueller Type 667 or equal.
(F) Valve boxes.
(1) Valve boxes for buried valves shall be cast iron, either two piece or three piece type. Boxes shall be extension type with slide or screw type adjustment. Each base and bottom section shall be sized for the valve served. Valve box covers shall be stamped “water” for identification.
(2) Valve boxes for curb stops shall be cast iron, extension type with foot piece, curb box and lid.
(G) Fire hydrants.
(1) Fire hydrants shall be of the post dry type barrel design conforming to ANSI/AWWA C502. Hydrants shall be rated for a 200 psi working pressure.
(2) The main valve closure shall be of the compression type, opening against system pressure and closing with the pressure.
(3) The main valve opening shall be five and one-half inches and shall be designed so as to allow removal of the seat and drain valve mechanism without disturbing the ground line. The hydrant shall have two hose nozzles and one pumper nozzle.
(4) Hydrants shall be of the dry type design with o-ring sealed reservoir.
(5) Fire hydrants shall be Mueller Super Centurion 200.
(H) Meter setters.
(1) Meter setters shall be prefabricated copper yoke type sized as required for the service meter.
(2) Units shall include a lock wing type ball meter valve on the inlet and dual check valve on the outlet.
(3) The fittings and arrangement shall be as required for the application.
(4) Meter setters shall be as manufactured by McDonald Brass, Mueller or equal.
(I) Meter boxes.
(1) Meter boxes shall be made of rigid PVC sized as required for the application.
(2) Boxes shall be installed complete with foam insulating pad for protection against freezing.
(3) Meter boxes shall be EZ-Setter as manufactured by Sono-Loc, Mueller or equal.
(J) Meter box covers.
(1) Meter box covers shall be cast iron of standard weight construction. Covers shall be sized as required to fit the applicable meter box; provided, the minimum diameter is 15 inches.
(2) Covers shall be of the flat lid, no lock type having an integral reader lid as required for touch read meters. Covers shall be stamped with the words “water meter”.
(3) Where required for concrete or asphalt installation, the meter box covers shall include a four-inch cast iron frame.
(4) Meter box covers shall be Ford Meter Box, A3-T or A3-TT (double service), or equal.
(K) Tapping saddles. Where plastic mains are tapped, furnish and install service clamp or saddle with threaded tap for three-fourths-inch or one-inch service as manufactured by Mueller, Ford Meter Box or equal.
(L) Curb stop.
(1) For one and one-half-inch services, provide a Ford or Mueller curb stop at the main. Stops to be bronze and ball with Buna-N rubber “O” rings. Connections to be for pack joints.
(2) Furnish cast iron curb stop box and one curb stop wrench.
(M) Service tubing. All single service tubing shall be three-fourths-inch type L copper tubing and double service connections shall be one-inch size.
(2004 Code, Art. III, § A, part 2)