Valve to be leak-tight at full rated working pressure. All valves to have calibrated nameplates to assure specific valve settings. Valves to have memory stop feature to allow valve to be closed for service and then reopened to set point without disturbing balance position. Valve bodies to have 1/4' NPT tapped drain/purge port. Read-out ports to be fitted with internal EPT inserts and check valves. Valves to have differential pressure read-out ports across valve seat area.

Pump impeller trim after system balance will reduce system horsepower and operating costs to minimum levels.Īll valve to be of bronze body/brass ball construction with glass and carbon filled TFE seat rings. With this procedure, system balance and start-up time is reduced dramatically. Terminal Unit balance valves can be simply pre-set using the B&G Circuit Setter Model RF Curves and the system piping plan. This system balance method, developed by B&G, assures optimum system flow balance at minimum pump operating horse power. Use in U.S.The CIRCUIT SETTER Model RF calibrated balance valve is designed specifically for pre-set or proportional system balance for use with terminal and fan coil units. NIBCO® Coil-Connect™ components are backed by the NIBCO 5-year 125% limited warranty. Choose NIBCO® Coil-Connect™ valves, fittings and accessories for the most specified, versatile and economical option in commercial HVAC and mechanical applications. A manual circuit balancing valve performs three functions: flow measurement, flow adjustment, and flow shut-off. Electrical Schematics and Wiring Diagrams for Options (Series 75). A balanced system ensures a comfortable indoor climate. FCD WCAIM2013-01 08/04 (Replaces IOM-12156). Whether a system is designed for heating, cooling or water distribution it must be properly adjusted and balanced for optimum performance. Please refer to NIBCO technical data sheets and IOM Manuals for engineering and installation information.

DIMENSIONS AND WEIGHTS All dimensions +/-0.125 (3.2 mm) tolerance. CSA CERTIFIED: AB1953 Vermont S152 Maryland House Bill 372 statute 12-605.

This oblique pattern globe valve provides finite control and fixed point measurement through the venturi. LEAD-FREE CIRCUIT SETTER PLUS Calibrated Balance Valves A-549LFP(E) Contains less than 0.25 lead content by weight on wetted surfaces. The NIBCO Coil-Connect™ manual balancing valve is constructed of dezincification resistant materials. Each balancing valve has an integral memory stop feature to retain settings. Each valve has 2 integral drilled and tapped ports with PT ports installed. The NIBCO® Coil-Connect™ fixed orifice manual balancing valves are ideally suited for use in HVAC and other mechanical applications that require a balanced system providing optimum flow.

Circuit setter iom