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2.2 PIPE AND TUBING MATERIALS <br /> A. General: Refer to Part 3 "Pipe Applications"Article for identifying where the following <br /> materials are used. <br /> B. Drawn-Temper Copper Tubing: ASTM B 88,Type L(ASTM B 88M,Type B). <br /> C. Annealed-Temper Copper Tubing: ASTM B 88,Type K(ASTM B 88M,Type A). <br /> 2.3 FITTINGS <br /> A. Wrought-Copper Fittings: ASME B16.22. <br /> B. Wrought-Copper Unions: ASME B16.22. <br /> C. Pipe Expansion Joints: Refer to Division 15 Section"Pipe Expansion Joints." <br /> 2.4 JOINING MATERIALS <br /> A. Solder Filler Metals: ASTM B 32,95-5 tin antimony. <br /> B. Brazing Filler Metals: AWS A5.8. <br /> 1. BAg 1: Silver. <br /> • <br /> 2. BCuP5: Silver(15%)-Copper(80%)-Phosphorus(5%). <br /> 2.5 VALVES <br /> A. General Duty Valves: Refer to Division 15 Section"Valves" for check,ball,and butterfly <br /> valves. Refer to Part 3 "Valve Applications" Article for specific uses and applications for <br /> each valve specified. <br /> B. Calibrated Balance Valves: Refer to Division 15 Section"Meters and Gages" for <br /> calibrated balance valves (flow measuring devices). <br /> C. Safety Relief Valves: Safety relief valves for full relief capacity of equipment served <br /> according to ASME Boiler and Pressure Vessel Code, Section IV. Cast-bronze,or cast <br /> iron body,Class 250;forged copper-alloy disc and nozzle; fully enclosed,cadmium- <br /> plated steel spring with adjustable pressure range and positive shutoff;with threaded or <br /> raised-face flanged inlet and threaded outlet connections;factory set and sealed. <br /> Safety relief valves shall discharge at the pressures indicated,or at 10 psi above the <br /> operating pressure. <br /> ADDENDUM#2 <br /> 1607.001 -ORONO ICE ARENA(CP-2) Page 15510-4 <br />