DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

2. 1-1/2-inch to 2-inch: Flow capacity shall be 7,500,000 BTU per hour at 14 inches watercolumn inlet pressure for 0.60 specific gravity gas (4,760,000 BTU per hour for propane),with a maximum allowable working pressure of 60 psig.2 .5 UNDERGROUND VALVESA. Valves: Valves shall be tested in accordance with ASME B16.40-85. Valve body material shallbe PE 2406 to match piping, and stub end SDR (standard dimension ratio) shall be the same asconnecting piping. Polyvalve Ball Valves, by Nordstrom Valves, Inc. (division of BTR, Inc.),Sulphur Springs, Texas, or approved equal.1. 3/4-inch to 1-1/4-inch: Two-piece molded fusion-bonded polyethylene body, with acetalball, Buna-N seats and stem seals, stainless steel blowout-proof stem, groundwater sealunder 2-inch square stem adapter, and pipe stub ends suitable for butt or socket fusionjoints.2. 2-inch to 6-inch: Three-piece molded fusion-bonded polyethylene body, withpolypropylene ball, Buna-N seats and stem seals, plastic blowout-proof stem, groundwaterseal under 2-inch square stem adapter, and pipe stub ends suitable for butt or socket fusionjoints.B. Valve Boxes: Adjustable plastic roadway valve box, with screw-type bury depth adjustment, 5-1/4-inch nominal diameter. 5-1/4-inch Roadway Valve Box, by Ametek, Inc., Plymouth ProductsDivision, Sheboygan, Wisconsin 53082, or approved equal.1. Bottom Section: Bottom section shall be constructed of a rigid combination of polyolefin,fibrous inorganic reinforcement, and stabilizer additives to provide resistance to materialdegradation from ultraviolet light. Bottom section shall have a bell with inside dimensionsof 9-inch diameter x 7-1/2-inch high, suitable for 2-inch through 10-inch valves.2. Top Section: Top section shall be constructed of a ferrous metal impregnatedthermoplastic material suitable for detection with a magnetic metal detector.3. Roadway Ring and Cover: Traffic-rated cast iron top ring with full flange and cast irontraffic cover. Cover shall have the letters "GAS" cast into the cover surface.2 .6 PROPANE GAS REGULATORSA. Propane gas regulators shall comply with UL 144-94.B. Building Service (Secondary) Regulators: Adjustable diaphragm type, with 3/4-inch NPT springcase vent, integral high-capacity relief valve, straight pattern body, 360-degree union ring betweenbody and casing, threaded inlet and outlet on body, and 7 to 15 inches water column outletpressure adjustment range. Propane vapor capacity shall be 2,000,000 BTU per hour and outletpressure shall be factory set at 11 inches water column. Type S102C, by Fisher Controls International,Inc., McKinney, Texas, or approved equal.2 .7 METERSA. Positive displacement diaphragm type, with die-cast aluminum alloy case, molded bellows typediaphragm, reinforced flag rod, upper and lower flag rod bearings, insulated union topconnections, and digital index. Provide with appropriate meter unions on inlet and outlet.American Meter Company, Horsham, Pennsylvania 19044, or approved equal.15360-4PROPANE GAS DISTRIBUTION SYSTEM