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' c. Hammond <br /> d. Milwaukee <br /> e. Powell <br /> f. Stockham <br /> B. Swing Check Valves, 2-1/2-Inch and Larger. MSS SP-71; Class 125 (Class 175 FM approved for fire protection <br /> ' piping systems),cast iron body and bolted cap conforming to ASTM A 126,Class B;horizontal swing,and bronze <br /> disc or cast-iron disc with bronze disc ring; and flanged ends. Provide valves capable of being refitted while the <br /> valve remains in the line. <br /> 1. Manufacturers: <br /> a. Crane <br /> ' b. Grinnell <br /> c. Hammond <br /> d. Kennedy <br /> .e. Milwaukee <br /> ' f. Powell <br /> g. Stockham <br /> h. Victaulic <br /> C. Wafer Check Valves: Class 250, cast iron body; with replaceable bronze seat, and non-slam design lapped and <br /> balanced twin bronze flappers and stainless steel trim and torsion spring. Provide valves designed to open and close <br /> at approximately one foot differential pressure. <br /> 1. Manufacturers: <br /> a. Bell&Gossett <br /> b. Center Line <br /> C. Metraflex <br /> d. Mission <br /> e. Stockham <br /> f. Mueller Steam Specialty <br /> g. Grinnell <br /> D. Lift Check Valves, 2-Inch and Smaller. Class 125; cast-bronze body and cap conforming to ASTM B 62; <br /> horizontal or angle pattern, lift-type valve, with stainless steel spring,bronze disc holder with renewable "Teflon" <br /> ' disc,and threaded ends. Provide valves capable of being refitted and ground while the valve remains in the line. <br /> 1. Manufacturers: <br /> a. Crane <br /> b. Grinnell <br /> c. Hammond <br /> d. Milwaukee <br /> e. Powell <br /> f. Stockham <br /> PART 3: EXECUTION <br /> ' 3.01 EXAMINATION <br /> A. Examine valve interior through the end ports,for cleanliness,freedom from foreign matter and corrosion. Remove <br /> special packing materials,such as blocks used to prevent disc movement during shipping and handling. <br /> 15100-5 No.99132-CP2 <br />