The Bell & Gossett Triple Duty® Valve is a combination valve that provides all of the functions normally required on the discharge side of hydronic pump systems. The design combines three valves into one: a calibrated balance valve, a spring loaded check valve, and an isolation/shut-off valve. The combination of multiple valves helps save space and reduces installation time and money.
All Triple Duty® Valves features a calibrated nameplate designed to allow you to accurately balance your system and throttle excess flow. Model 3DV valves utilize a calibrated ball valve design that also provides complete shut-off. The larger Model 3D and 3DS valves utilize a disc style globe valve design that also features a soft seat design that provides complete shut-off and prevents valve chatter. Additionally all valves feature a memory stop or memory button to allow you to return the valve to its set position after shut-off. All B&G Triple Duty® Valves also include a spring loaded check valve to prevent backflow and gravity circulation.
Model 3DV Triple Duty® Valves are manufactured with a brass body, chrome plated brass ball, and glass filled Noryl check valve with a stainless steel spring. They include two extended P/T valves and extended stem to allow for ease of installation in insulated systems, and include a choice of FNPT or rotatable flange inlet connection. They are available in sizes 1” through 2” and are suitable for up to 200 psi and 250°F. Model 3D (angle pattern) and 3DS (straight pattern) valves are manufactured with iron bodies, brass discs with EPDM seats, and stainless steel springs. They are available in sizes 2” – 16”, feature flanged and grooved end connections, and are suitable for either 175 psi (flanged) or 300 psi (grooved) pressure and 250°F.
Features and Benefits
Combines 3 valves in 1, saving time and money
Wide range of sizes and connections
Excellent Cv range
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|ESP-Plus||Bell & Gossett Pump Selection: Circulators, End Suction, Closed-Coupled, Inline, Double Suction|
|ESP-Thermal||Bell & Gossett Gasket Plate & Frame and, Brazed Plate Heat Exchangers|
|Steam-2000||Steam 200 Selection|
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|Water-1140||Series 1140 Water Service Regulators|
|Steam-Traps||Steam Traps Selection|
|CAD Drawings||CAD Drawings|
|System Syzer||System Syzer (available online, PC download, and iOS app)|
|System Syzer Psychrometry||System Sizing related to coil cooling (link downloads .exe file)|
|Steam-Pipe||Steam Pipe Sizing|
|Steam-Loss||Steam Loss Through Failed Trap|
|Flash-Steam||Flash Steam Sizing|
|Condensate-Pipe||Condensate Pipe Sizing|
|ESP-UTUBE||Bell $ Gossett U-Tube Heat Exchangers|
Bell & Gossett is a leading manufacturer of pumps, valves, heat exchangers, and accessories for plumbing, wastewater, and HVAC—including steam and heat transfer—applications.
LOWARA UK Ltd.
Millwey Rise Industrial Estate
Axminster, Devon EX13 5HU - UK
Tel.: (+44) 01297 630200
Fax: (+44) 01297 630270
E-mail: Lowara UK Enquiries
Lowara UK Ltd, Registered in England No. 1728230.
Registered Office: Jays Close, Viables Estate,
Basingstoke, Hampshire RG22 4BA, United Kingdom