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PLUMBING SYSTEM ACCESSORIES <br />Section 15410 <br />15-1207 <br />C. Valve solder -joint connections are common in smaller sizes of plumbing <br />piping. Soldering and brazing methods used to achieve required pressure - <br />temperature ratings may damage internal valve parts. Special installation <br />requirements for soldered valves may make threaded valves more cost- <br />effective. <br />d. Threaded: With threads according to ASME B1.20.1. <br />e. Valve Bypass and Drain Connections: MSS SP -45. <br />B. Acceptable Manufacturers: <br />Ball, gate, butterfly, and check valves: <br />a. Nibco <br />b. Milwaukee <br />C. Hammond <br />2. Plug Valves: <br />a. Rockwell <br />b. Homestead <br />C. Nordstrom Valves, Inc. <br />d. <br />3. Balance Valves: <br />a. Bell and Gosset Circuit Setter <br />b. Armstrong <br />C. Nibco <br />4. Gas Pressure Reducing Valves: <br />a. American Meter Company <br />b. Fisher <br />C. Or equal <br />5. Seismic Valve <br />a. Koso/California Seismic Valves <br />b. Or equal <br />C. Ball Valves - < 2"0: <br />1. Two -Piece, Full -Port, Lead Free Ball Valves with Stainless -Steel Trim: <br />2. NIBCO (or equal) Model T -585 -66 -LF or S-858-66-LFS-585-70-66. <br />a. SWP Rating: 150 psig <br />b. CWP Rating: 600 psig <br />C. Body Design: Two piece steel with threaded body packnut design (no <br />threaded stem designs allowed) with adjustable stem packing. <br />d. Body Material: Silicon Bronze ASTM B 584 Alloy C87600. <br />e. Ends: Threaded or Solder. <br />f. Seats: PTFE <br />g. Stem: Stainless. <br />h. Ball: Stainless steel, vented. <br />i. Port: Full. <br />D. Ball Valves — 2 '/2"0: <br />1. Three Piece, Full -Port, Lead Free Ball Valves with Stainless -Steel Trim: <br />3 <br />