Flanged & Grooved Circuit Balancing Valve NPI
Flanged & Grooved Circuit Balancing Valve NPI
The document describes the 737A Circuit Balancing Valves, which feature a durable iron body and bonnet, a compact non-rising stem design, and an EPDM elastomer-coated disc. The valves include a memory stop feature and a linear scale for accurate position indication. They are designed with ANSI Class 125 flanges and ANSI/AWWA C606 groove dimensions for IPS pipe, suitable for HVAC and plumbing systems.
The valves are constructed from materials such as cast iron (ASTM A 126B), EPDM, HT Brass, zinc-plated steel, stainless steel, ABS, and PA 6 30%GF. The document provides a detailed material list for each component of the valve.
The valves are designed to operate at a pressure of 240 PSI and a maximum temperature of 250°F. For lower temperatures, consultation with NIBCO Technical Services is recommended.
These balancing valves are used to ensure a balanced system, providing desired flow distribution and optimum system performance, which leads to energy and cost efficiencies. They are essential for maintaining a comfortable indoor climate and ensuring the correct flow in boilers and chillers.
Properly balanced systems prevent temperature variations, reduce energy costs by up to 35%, and ensure trouble-free operation and ease of maintenance. They also contribute to lower capital costs.
The document includes detailed dimensions and weights for various valve sizes, ranging from 2 inches to 12 inches, with corresponding measurements in both inches and millimeters.
Catalog excerpts
• Durable iron body and bonnet • Compact non-rising stem design • EPDM elastomer coated disc • Memory stop feature • Linear scale for accurate position indication CIRCUIT BALANCING VALVES 737A • ANSI Class 125 flanges, ASME B16.1 • ANSI/AWWA C606 groove dimensions for IPS pipe • Globe style balancing valve for use in HVAC and plumbing systems • Balanced system ensures a comfortable indoor climate • Balancing valves provide desired flow distribution throughout the system • Optimum system performance provides energy and cost efficiencies APPLICATIONS MATERIALS & CONSTRUCTION DESIGN CRITERIA 737A-1105 © 2005, NIBCO INC. www.nibco.com Printed in USA F737A G737A Visit our website for the most current information
Open the catalog to page 1
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227 TECH SERVICES PH: 1.888.446.4226 • FAX: 1.800.234.0557 • INTERNATIONAL OFFICE PH: +1.574.295.3221 • FAX: +1.574.295.3455 www.nibco.com Sub-Head www.nibco.com A H E A D O F T H E F L O W® Flanged Iron Circuit Balancing Valve Flanged ANSI Class 125 • Globe Valve • Non-rising Stem • Bosses Drilled, Tapped and Plugged for Test Points • Integral Internal Memory Stop Pressure: 240 PSI water Temperature: 250°F maximum (for low temperature, consult NIBCO Technical Services.) MATERIAL LIST PART SPECIFICATION...
Open the catalog to page 2
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227 TECH SERVICES PH: 1.888.446.4226 • FAX: 1.800.234.0557 • INTERNATIONAL OFFICE PH: +1.574.295.3221 • FAX: +1.574.295.3455 www.nibco.com Sub-Head www.nibco.com A H E A D O F T H E F L O W® G737A Grooved Iron Circuit Balancing Valve Grooved Dimensions per ANSI/AWWA C606 for IPS Pipe • Globe Valve • Non-rising Stem• Bosses Drilled, Tapped and Plugged for Test Points • Integral Internal Memory Stop Pressure: 240 PSI water Temperature: 250°F maximum (for low temperature, consult NIBCO Technical Services.)...
Open the catalog to page 3
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227 TECH SERVICES PH: 1.888.446.4226 • FAX: 1.800.234.0557 • INTERNATIONAL OFFICE PH: +1.574.295.3221 • FAX: +1.574.295.3455 www.nibco.com Sub-Head www.nibco.com A H E A D O F T H E F L O W® Why balance your system? Whether a system is designed for heating, cooling or water distribution it must be properly adjusted and balanced for optimum design performance. An unbalanced system may produce temperature variations of up to 14°F between rooms, which typically add up to 35% to energy costs. Valuable...
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