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a. Caution: Where soldered end connections are used, use solder having a melting point below 840°F for <br /> gate,globe,and check valves;below 421°F for ball valves. <br /> 4. Grooved End: Comply with ANSI B-31.1,B-31.9. <br /> 2.03 GATE VALVES <br /> A. Gate Valves,2-Inch and Smaller: MSS SP-80;Class 125 psi WSP/200 psi WOG,body and bonnet of ASTM B 62 <br /> cast bronze; with threaded or solder ends, solid disc, copper-silicon alloy stem, brass packing gland, "Teflon" <br /> impregnated packing. Provide Class 150 valves meeting the above where system pressure requires. Do not use <br /> solder end valves for hot water heating or steam piping applications. <br /> B. Gate Valves, 2-1/2-Inch and Larger: MSS SP-70; Class 150 psi WSP/300 psi @OG iron body, bronze mounted, <br /> with body and bonnet conforming to ASTM A 126 Class B;with flanged ends,and"Teflon" impregnated packing <br /> and two-piece packing gland assembly. <br /> C. Manufacturers: <br /> 1. Crane <br /> 2. Grinnell <br /> ' 3. Hammond <br /> 4. Milwaukee <br /> 5. Powell <br /> 6. Stockham <br /> 2.04 BALL VALVES <br /> A. Ball Valves, 1-Inch and Smaller: Rated for 150 psi WSP/600 psi WOG pressure; two-piece construction, with <br /> bronze body conforming to ASTM B-584, full port, stainless steel(T-316)ball and stem"Teflon" or "TFE" seats <br /> and seals,blowout proof stem design,and vinyl-covered steel handle with stem extension for insulation application. <br /> Provide balancing stops as required by application. Provide solder ends on all services except steam where <br /> threaded ends are required. <br /> B. Ball Valves, I%-Inch to 2-Inch: Rated for 150 psi WSP/600 psi saturated steam pressure, 600 psi WOG pressure; <br /> 3-piece construction, bronze body conforming to ASTM B-584, full port, nickel and chrome plated brass ball, <br /> replaceable"Teflon"or"TFE"seats and seals,blowout proof stem design,and vinyl-covered steel handle with stem <br /> extension for insulation application. Provide balancing stops as required by application. <br /> C. Manufacturer: <br /> 1. Conbraco(Apollo) <br /> 2. Grinnell <br /> 3. Hammond <br /> 4. Milwaukee <br /> 5. Victaulic <br /> 6. Watts <br /> 2.05 PLUG VALVES <br /> A. Plug Valves,2-Inch and Smaller: Rated at 150 psi WOG,bronze body,with straightaway pattern,square head,and <br /> threaded ends. <br /> B. Plug Valves,2-1/2-Inch and Larger: MSS SP-78;rated at 175 psi,lubricated plug type,with semi-steel body,single <br /> gland,wrench operated,flanged ends. <br /> 15100-3 No.99132-CP2 <br />