Specifications - City of Montpelier, Vermont

Title:15100 – ValvesMontpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Page #:5 of 9A. Check Valve, 2½" and Larger, Cast Iron: MSS SP71, class 125/250 (as appropriate) cast iron body,ductile iron disk, (ASTM A536) disk and stainless steel pin.2.4 BUTTERFLY VALVESMueller ChexterType DChampionSDTyco Prince Figure 809A. Commercial performance butterfly valves, 2½" and Larger; MSS SP 67; ANSIClass 150 cast iron body conforming to ASTM A 126. Provide lever operatorswith locks for sizes 2" through 6" and gear operators with position indicator forsizes 8" through 24". Lug type valves with aluminum bronze disc, 416 stainlesssteel shaft, EPDM seats. Wafer type valves are not allowed.Center Line200 series #B1061052/5Milwaukee ValveCL2/323E seriesWattsDBF031211 seriesB. HighPerformance butterfly valves, 2½" and Larger: MSS SP 68; ANSI Class150 carbon steel body conforming to ASTM A 216, type WCB. Provide leveroperators with locks for sizes 2" through 6" and gear operators with positionindicator for sizes 8" through 24". Lug type, bidirectional valves with 316stainless steel disc, 174 PH stainless steel shaft, filled (reinforced) TFE seats andTFE packing. Wafer type valves are not allowed.NelesJamesbury Wafer Sphere #815L112236TTFlowseal1LA121RTGBray ControlsMcCannalokDeZurik Bulletin 45.002.5 BALANCING VALVE:A. 3/8" through 2", with solder NPT connections, metal brass copper alloyconstruction with a minimum of four, 360° rotations of handwheel for maximumsetting.B. 2½" and larger, with flanged connections, cast iron body with all other parts ofnonferrous copper alloy construction with eight or twelve 360° rotations ofhandwheel for maximum setting.C. Balancing valves to have provisions for measuring differential pressure, flowVALVES151005