Triple Duty Valves

Bell & Gossett : Triple Duty Valves :

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

  • Calibrated balance valve with nameplate and memory stop/button
  • Spring loaded check valve
  • Isolation/Shut-off valve

Wide range of sizes and connections

  • Straight Pattern Flanged: 2” – 14”
  • Straight Pattern Grooved: 2” – 12”
  • Balanced Straight Pattern Flanged: 3” – 16”
  • Angle Pattern Flanged: 2” – 10”
  • Model 3DV FNPT and Rotatable Flange: 1” – 2”

Excellent Cv range

  • From 9 to 3,225
Bell & Gossett offers several useful engineering tools for easy sizing of every area of a building. Simple to navigate software gives you accurate information and up-to-date documentation downloadable straight into your submittal package. Some tools require a registered account: New User Registration | Existing User Password Help
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ESP-PlusBell & Gossett Pump Selection: Circulators, End Suction, Closed-Coupled, Inline, Double Suction
ESP-ThermalBell & Gossett Gasket Plate & Frame and, Brazed Plate Heat Exchangers
ESP-PartsParts Selection
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Water-1140Series 1140 Water Service Regulators
Steam-TrapsSteam Traps Selection
CAD DrawingsCAD Drawings
System SyzerSystem Syzer (available online, PC download, and iOS app)
System Syzer PsychrometrySystem Sizing related to coil cooling (link downloads .exe file)
Steam-PipeSteam Pipe Sizing
Steam-LossSteam Loss Through Failed Trap
Flash-SteamFlash Steam Sizing
Condensate-PipeCondensate Pipe Sizing
ESP-UTUBEBell $ Gossett U-Tube Heat Exchangers

For sales and service inquiries, please contact

Xylem Water Solutions Ireland Ltd
50 Broomhill Close,
Airton Road,
Tallaght,
Dublin 24.
Tel. (+353) 01 4524444
Fax (+353) 01 4524795
E-mail: lowara.ireland@xyleminc.com