City of Magnolia, TX: Materials and/or equipment.

Pressure Rated PVC Pipe.

Pressure rated PVC pipe, used for force mains or gravity lines, shall be polyvinyl chloride Type 1, Grade 1. The pipe shall meet AWWA specifications and bear the seal of the National Sanitation Foundation on each joint. The diameter and applicable commercial standard shall be shown on each length of pipe. The type of PVC pressure rated pipe required for the project shall be as shown on the plans.

Schedule 40 PVC Pipe.

Schedule 40 PVC pipe shall conform to the requirements of ASTM D-1785. Joints for schedule 40 PVC shall be solvent weld with recessed bells. Pipe and fittings shall be made of PVC plastic having cell classification of 12454-B as specified in ASTM D-1784.

ASTM D-2241 PVC Pipe.

Pipe other than schedule 40 PVC shall comply with the requirements of ASTM D-2241. The pressure rating of the pipe shall be SDR 21 (Class 200) for four inch (4") and smaller pipe and SDR 26 (Class 160) FOR SIX INCH (6") and larger pipe unless otherwise shown on the plans or in the bid form. Joint seals for ASTM D-2241 PVC pipe shall conform to ASTM F-477. Pipe and fittings shall be made of PVC plastic having cell classification of 12454-B as specified in ASTM D-1784.

Non Pressure Rated PVC Pipe.

Pipe for gravity sewers shall conform to ASTM D-3034 or ASTM F-675, SDR 26 unless otherwise shown on the plans. Pipe shall have fluid tight gasket type joints with joint bells formed integrally with the pipe. Joint seals shall conform to ASTM F-477 Pipe and fittings shall be made of PVC plastic having cell classification of 12454-B as specified in ASTM D-1784. The diameter and applicable commercial standard shall be shown on each length of pipe.

PVC Fittings.

PVC fittings for the pipe shall be constructed of the same material as the pipe. Fittings shall be of the molded type or machined from extruded stock. PVC fittings for pressure rated PVC pipe conforming to ASTM D-2241 used for gravity lines shall have a minimum pressure rating of 150 p.s.i. PVC fittings for pressure rated PVC pipe conforming to ASTM D-2241 used for force mains shall be rubber gasket and shall have a minimum pressure rating of 200 p.s.i. PVC fittings for Schedule 40 PVC pipe shall normally be Schedule 40 solvent weld, but rubber gasket fittings may be used in some applications. Fittings for ASTM D-3034 and ASTM D-2241 PVC pipe shall be push on type and have elastomeric seals and shall be compatible with the pipe. The seals shall meet ASTM F-477 for elastomeric seals. Fittings shall have smooth interior free of ridges or obstructions to sewer flow.

Ductile Iron Pipe.

Ductile iron pipe shall be thickness Class 50 per ANSI/AWWA C151/A21.51, unless shown otherwise on the plans. Pipe joints shall be push on joint per ANSI/AWWA C111 unless shown otherwise. Interior flange pipe shall conform to ANSI/AWWA C115.

Coating, Lining and Encasement.

Underground pipe and fittings shall be asphaltic coated outside per ANSI/AWWA C151/A21.51 unless shown otherwise. Inside lining shall consist of a 30 mil dry film thickness of polyurethane high solids, high build two component coating (Corropipe II TX Five Minute Number 17115) as manufactured by Madison Chemical Industries, Inc., or 24 mil dry film thickness epoxy coating. Applicators of polyurethane and epoxy lining shall be approved by the pipe manufacturer. Encase pipe with 8 mil low density or 4 mil high density polyethylene in accordance with ANSI/AWWA C105/21.5.

Ductile Iron Fittings - Full Body.

Fittings shall be cast iron or ductile iron push-on type conforming to ANSI/AWWA C110/A21.10 and ANSI/AWWA C111/A21.11, unless shown otherwise on the plans. Mechanical joint fittings shall conform to ANSI/AWWA C110/A21.10 and ANSI/AWWA C111/A21.11, Class 250 for 4" through 12" and Class 150 for 14" and larger unless shown otherwise on the plans. Flanged fittings to be in accordance with ANSI/AWWA C110/A21.10 and ANSI/AWWA C111/A21.11, Class 250 for 4" through 12" and Class 150 for 14" and larger unless shown otherwise on plans, both with one hundred twenty-five (125) pound template flanges.

Ductile Iron Fittings - Short Body.

“Short body” fittings shall be ductile iron push-on type conforming to ANSI/AWWA C153/A21.53 and ANSI/AWWA C111/21.11, Class 350 for all sizes, unless shown otherwise on the plans. Mechanical joint ductile iron short body fittings shall conform to ANSI/AWWA C153/A21.53 and ANSI/AWWA C111/21.11, Class 350 for all sizes. Flanged fittings shall have full body dimensions.

Gaskets.

Flanged joint gaskets shall be of SBR or Neoprene rubber. Gaskets shall extend to the full flange with holes to match ANSI A21.10 or B16.1 Class 125 flange drilling. Gaskets shall be rated for 250 psi water working pressure as a minimum.

Concrete.

All concrete shall meet the requirements specified in Section 03300, Cast-In-Place Concrete.

Mortar.

Mortar shall conform to the current specification for Mortar for Unit Masonry, ASTM Designation C270, Type S. Mortar shall be composed of two parts of fine aggregate thoroughly mixed with one part Portland cement and the amount of water required to produce a homogeneous mixture of such consistency that it can be easily handled and spread by trowel. Aggregate for the mortar shall meet ASTM C-144.

Manhole Covers.

Manhole covers and rings shall be made of the best quality of gray iron, ASTM A-48, Class 35B. The covers shall possess a tensile strength of not less than eighteen thousand (18,000) pounds per square inch. All casting shall conform to the shape and dimensions shown on the plans and shall be clean and perfect without defects of any kind. All sanitary sewer manhole covers must include the words “Sanitary Sewer”. See detail drawings for required make and model of cover.

Cleanout Covers.

Cleanout covers shall be made of the best quality of gray cast iron. The cover shall be free from perforations and shall conform to the detail specified in the plans.

Fiberglass Manholes.

Use manufactured reinforced fiberglass plastic as manufactured by Fluid Containment, Inc. formerly known as Owens-Corning Tanks Division, or preapproved equal. A traffic model designed for H2O wheel loading is required when installed in a traveled way.

Precast Concrete Manholes.

Precast concrete manholes shall meet the requirements of ASTM C-478. Ring sections shall be of the diameter specified. Precast concrete manholes joint gasket connections shall be made with an O-Ring type rubber gasket meeting ASTM C361-89 and C443-85 as manufactured by Press-Seal Gasket, Inc. or approved equal. Precast manhole sections shall be specifically manufactured for O-Ring application. Installation shall be in accordance with the manufacturer’s recommendations.

Grade Rings.

Precast concrete grade rings shall be used to adjust all types of manholes to final grade. Bricks shall not be used to adjust manhole grades.

Manhole Coating.

The interiors of precast or cast-in-place concrete manholes shall be coated with a 10 mil thickness of coal tar epoxy, Pittsburgh two (2) part “Coal Cat”, component “A” is No. 97-640 and component “B” is No. 97-641; Tnemec two (2) part “Tneme-Tar”, No. 46-413; or approved equal.

Gate Valves.

Gate valves 2-inches and larger shall be iron-body, resilient rubber seat, non-rising stem and shall conform to AWWA C-509. Gate valves smaller than 2-inches shall be brass double disc with brass body, non-rising stem with 2" square nut adapter and shall conform to AWWA C-500. Valves shall have the required ends for the piping in which they shall be installed. Gate valves shall have a clear waterway equal to the full nominal diameter of the valve and shall be opened by turning counterclockwise. An arrow shall be cast in the metal of the operating nut or wheel to indicate the direction to open. Underground valves shall be nut operated and valves located in structures shall be wheel operated. Each valve shall have the maker’s initials, pressure rating, and year of manufacture cast on the body. Valves 2 inches through 12 inches shall have a 200 psig working pressure and valves 16 inches and larger shall have a 150 psig working pressure. Prior to shipment from the factory each valve shall be tested by hydraulic pressure equal to twice the specified water working pressure. Gate valves shall have the same exterior coating as the pipe and an 8 to 10 mil dry film thickness epoxy interior coating.

Check Valves.

Check valves two and one-half (2-1/2) inches in diameter and larger shall be iron body, bronze mounted, horizontal swing check valves with balanced weight and lever arm designated for one hundred fifty (150) pounds working pressure, unless otherwise designated on the plans. Check valves shall have the same exterior coating as the pipe and an 8 to 10 mil dry film thickness epoxy interior coating.

Plug Valves.

Plug valves shall be manufactured by Dezurik or preapproved equal. Plug valves shall have the exterior coating same as the pipe and an 8 to 10 mil dry film thickness epoxy interior coating.

Valve Boxes.

All valves buried in the ground shall be provided with cast iron boxes of proper dimensions to fit over the valve. The tops shall be complete with covers and adjustable.

Shear Gates.

Shear gates shall be all iron, Clow No. F-3000; Neenah Foundry Company, R-5005 Series; Olympic shear gate; or approved equal. Shear gates shall have lifting handle extension where required.

Combination Sewer Air Valves.

Combination air valves for sanitary sewer force mains shall be A.R.I. Model D-025 or preapproved equal. All valves shall come equipped with backwash assemblies and shall be rated for sewer service.

Casing Spacers:

Casing spacers shall provide electrical insulation between the carrier pipe and casing. They shall be made of high density polyethylene or of other approved material. The casing spacers shall be “RACI” as manufactured by Public Works Marketing, Inc., or approved equal.

The spacers shall be sized such that the bell of the carrier pipe will be held a minimum of one-fourth (1/4) inch from the bottom of the casing, and the spacer O.D. shall not be less than the casing I.D. minus three-fourths (3/4) of an inch. The design and type of spacer shall be suitable for the type, size, and weight of the carrier pipe and it’s contents.

(Ordinance 2007-106, App. B, adopted 3/20/07)