DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

2) Gaskets: ASME B16.21-92. Gaskets shall be suitable for 150 pound pressureclass LP-gas service.3. Unions: ANSI B16.39-86. Class 150, threaded malleable iron, ground seat, bronze-toiron.B. Piping Exposed to Tank Pressure:1. Piping: ASTM A53-96. Type E or S, Grade B, Schedule 80 black steel pipe.2. Fittings: Cast iron fittings shall not be used.a. Threaded Fittings: ASME B16.11-96. 2,000 pound, threaded forged steel.b. Welding Fittings: ASME B16.11-96. 3,000 pound, socket welding forged steel.c. Flanged Fittings:1) Flanges: ASME B16.5-96. 300 pound flange, forged steel welding neckfittings.2) Gaskets: Gaskets shall be suitable for 300 pound pressure class LP-gasservice.3. Unions: 3,000 pound forged steel AAR unions, with threaded or socket welding endconnections.C. Flexible Piping Connectors: Convoluted stainless steel inner pipe with braided stainless steelcover, end connections to match connected pipe or pipe fittings, 350 psig working pressure, 18-inch minimum length, suitable for LP-gas service.2 .2 UNDERGROUND PIPE AND FITTINGSA. Piping Downstream of Primary Regulators: Section 15360.B. Piping Exposed to Tank Pressure:1. Piping: ASTM A53-96. Type E or S, Grade B, Schedule 80 black steel pipe with extrudedhigh density polyethylene coating conforming to ASTM D1505-96. Pipe shall be steelshot or grit blast cleaned to SSPC-SP-6 and shall have an adhesive undercoating appliedbefore polyethylene coating extrusion.2. Fittings: ASME B16.11-96. 3,000 pound, socket welding forged steel.3. Fittings and welds shall be covered with heat-shrink polyethylene pipe sleeves, internallycoated with adhesive similar to that used for the piping, or shall be wrapped with hotappliedcoal tar tape. Fittings and welds shall be primed with a primer compatible with thehot-applied coal tar tape before the tape is applied.C. Cathodic Protection: Provide magnesium anodes in numbers and sizes as necessary to protectcoated underground steel piping based on actual soil resistivity at the site. Anode lead wires shallbe attached to piping with thermit welds. Weld sites shall be coated with coal tar mastic afterwelding.15480-4PROPANE GAS STORAGE SYSTEM AND APPURTENANCES