Copyright 1987-2018 State Supply www.StateSupply.com Toll Free: 800.772.2099 ■ Order Online: www.StateSupply.com ■ Fax: 651.774.7156 ■ [email protected]107 B&G Model 3DV Triple Duty Valves 3DV is a calibrated balance valve, a check valve, and an isolation shut-off valve, providing all of the functions normally required on the discharge side of a pump in most HVAC systems. Its calibrated ball design allows you to accurately balance your system and throttle excess flow, and its memory stop provides the ability to return the valve to its set point after shut-off. In addition, its flow characteristic provides excellent system con- trol. With its range of sizes and connections, it’s the perfect compliment for your pump and system needs. Balancing Valve Check Valve Shut-Off Valve Model No. Pipe Size Inlet Style Dimensions, inches Wgt. lbs. Order No. A B C D 3DV-1NMF 1 NPT Male 7.22 3.34 3.93 0.77 9 3.5 BI2730 3DV-1RFF 1 Rotatable Flange 7.34 3.34 3.93 2.22 9 3.5 BI2731 3DV-1¼NMF 1¼ NPT Male 8.11 3.48 4.46 0.90 14 4.6 BI2732 3DV-1¼RFF 1¼ Rotatable Flange 8.24 3.48 4.46 2.22 14 4.6 BI2733 3DV-1½NMF 1½ NPT Male 8.91 3.61 4.52 1.02 25 5.2 BI2734 3DV-1½RFF 1½ Rotatable Flange 9.07 3.61 4.52 2.22 25 5.2 BI2735 3DV-2NMF 2 NPT Male 10.53 3.86 4.82 1.34 28 8.3 BI2736 3DV-2RFF 2 Rotatable Flange 11.15 3.86 4.82 3.00 28 8.3 BI2737 Cv Dimension Guide Specifications: Valve Body: C37700 Brass Ball: Chrome Plated C36000 Brass Stem: C37700 Brass Seating Rings: Glass & Carbon Filled PTFE PT Valves: C37700 Brass w/ EPDM Seals Check Valve Body: Glass Filled Noryl Seals: EPDM Spring: Stainless Steel Operating Limits Max. Operating Pressure: 200 psi Temperature Range: -4˚F to 250˚F Bell & Gossett 3DV Triple Duty Valve is Three Valves in One! Rotatable flange models for easy installation. ■ Calibrated nameplate and ball valve de- sign provides accurate balance for your HVAC system. ■ Integrated spring-loaded check valve prevents gravity circulation and backflow. ■ Full port ball valve provides complete shut-off, allowing your pump to be re- moved without draining your system. ■ Extended handle and extended PT valves allow for easy installation of insulation while still allowing ∆P to be measured and valve to be adjusted. ■ Cv ratings from 9 to 28, ideal for size and application. ■ Sizes 1” through 2”. ■ Pressure/temperature valves standard to allow for easy pressure drop and flow measurement.
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Copyright 1987-2018 State Supply www.StateSupply.com
3DV is a calibrated balance valve, a check valve, and an isolation shut-off valve, providing all of the functions normally required on the discharge side of a pump in most HVAC systems. Its calibrated ball design allows you to accurately balance your system and throttle excess flow, and its memory stop provides the ability to return the valve to its set point after shut-off. In addition, its flow characteristic provides excellent system con-trol. With its range of sizes and connections, it’s the perfect compliment for your pump and system needs.
The Bell & Gossett Triple-Duty valve allows you to replace the check valve, shut-off valve and balancing valve with the Three-in-One Triple-Duty Valve! Check-out these features: CHECK VALVE; Non-slam, drip-tight. SHUT-OFF VALVE; Positive shut-off. BALANCING VALVE; For system balancing.
■ Standard soft-seat design for positive sealing.■ Low pressure drop across the valve.■ Flow monitoring.■ Can be “re-packed” under full system pressure.■ Available in straight/angle patterns; straight pattern;
angle pattern.■ Choose from threaded, flanged or grooved connections.Made of heavy-duty cast iron. Features replaceable bronze disc with EPDM insert, chatter-preventing spring and brass read-out valves to allow accurate balancing of the system.
Call us at 800.772.2099 for product application or troubleshooting assistance.