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SPECIFICATION FOR REV. 2 <br /> F� PIPING MATERIALS PAGE 1/2015 <br /> 4 <br /> SPEC 4YQ <br /> PIPING MATERIAL SPECIFICATION FOR CRIPPLE CREEK&VICTOR GOLD MINING COMPANY <br /> 4YQ <br /> HDPE DR 7.0 <br /> SERVICE: Barren Solution <br /> Pregnant Solution <br /> Underground Fresh Water <br /> Underground Natural Gas <br /> CONSTRUCTION AND MATERIALS: 2"to 30"Butt Fusion Welded and Flanged <br /> ALLOWANCE FOR CORROSION: None <br /> GENERAL MATERIAL: High Density Polyethylene PE4710 ASTM D3350 <br /> Cell Classification PE 445474C <br /> MAXIMUM DESIGN PRESSURE: 333 psig @ 73°F, 265 psig @ 100°F, 216 psig @ <br /> 120°F, 166 psig @ 140°F (See Note 6) <br /> TEMPERATURE RANGE: -20OF to 140OF <br /> MAXIMUM HYDROSTATIC TEST PRESSURE: 500 psig @ 73°F (Test below 100°F) <br /> See piping line list for specific test pressures <br /> NOTES: <br /> 1. Piping materials must be manufactured under ASTM D3350 with a cell classification PE 445474C. <br /> 2. Gaskets are required for all flanged connections between HDPE and Non-HDPE flanges (i.e. steel). <br /> Gaskets are not required for HDPE to HDPE flanged connections. <br /> 3. Piping systems in natural gas service shall comply with ASTM D2513 <br /> 4. Maximum design pressure is based on the use of specific fittings listed below. Other fittings shall not <br /> be used without written approval from the Owner. Crosses, Wyes, Fabricated Tees and Fabricated <br /> Elbows are not allowed. <br /> 5. Piping systems with a design pressure equal to or less than 285 psig at 73°F shall use flange backing <br /> rings drilled to ASME 150 Class bolt pattern. Piping systems with a design pressure greater than 285 <br /> psig at 730F shall use flange backing rings drilled to ASME 300 Class bolt pattern and designed for full <br /> design pressure rating. <br /> 6. Molded fitting and Flanged/Mechanical Joint Adapters shall meet ASTM D3261 standards. <br /> 7. Electrofusion fittings shall only be used under the direction of the piping engineer. Electrofusion <br /> fittings shall meet the design pressure rating of this specification and ASTM F1055. <br /> 8. Lugged Style valves are preferred over wafer style valves. <br /> Q9. All flange fit-up between HDPE and flat face flanges on piping and equipment shall use an SP-035 filler <br /> ring. <br /> Instrument Connection <br /> Thermowell: 2"flanged connection <br /> Pressure Gage: Wafer type isolation between flanges <br /> Orifice Taps: None allowed <br /> Line Vents/Drains: 2"flanged ball valve VB-131T(when design pressure is below 285 psig) <br /> 4YQ <br />