Description
The Belimo G340B-N+SVB24-SR is a factory-assembled 3-way globe control valve with a modulating electric actuator designed for precise mixing and diverting control in hydronic HVAC systems. It combines a bronze valve body with a 24 V AC/DC non-fail-safe actuator to deliver stable flow regulation and accurate positioning.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
HVAC Control Components |
| Part Number |
G340B-N+SVB24-SR |
| Subcategory |
Globe Control Valves |
| Valve Type |
Globe Valve (GV) |
| Valve Size |
1.5 in (DN 40) |
| Flow Pattern |
3-way Mixing / Diverting |
| Cv Rating |
28 |
| Flow Characteristic |
Modified equal percentage, linear B–AB |
| Rangeability |
A-port 100:1, B-port 50:1 |
| Leakage Rate |
ANSI Class VI |
| Body Pressure Rating |
ANSI Class 250, up to 400 psi below 150°F |
| Fluid Compatibility |
Chilled or hot water, up to 60% glycol |
| Fluid Temperature Range |
−7…138°C (20…280°F) |
| Valve Body Material |
Bronze |
| Valve Plug |
Brass |
| Seat Material |
Bronze |
| Stem Seal |
EPDM O-ring |
| Pipe Connection |
NPT female |
| Actuator Type |
Electric, Non-Fail-Safe, Modulating |
| Actuator Voltage |
AC/DC 24 V |
| Control Signal |
2–10 V (4–20 mA with resistor) |
| Actuating Force |
1500 N (340 lbf) |
| Stroke Length |
0.75 in (19 mm) |
| Running Time |
90 s, constant |
| Manual Override |
4 mm hex crank (included) |
| Electrical Connection |
18 GA cable, 1 m, 1/2 in conduit |
| Degree of Protection |
IP54 / NEMA 2 |
| Ambient Temperature |
−30…50°C |
| Weight |
9.8 lb |
Information About G340B-N+SVB24-SR
The G340B-N+SVB24-SR is a Belimo globe valve assembly engineered for accurate temperature and flow control in variable hydronic systems. The 3-way valve design supports both mixing and diverting applications, enabling stable control of supply and return water circuits. Its modified equal percentage characteristic improves controllability across a wide operating range, even under partial load conditions. The factory-fitted non-fail-safe actuator provides proportional modulation using a standard 2–10 V control signal and is suitable for applications where spring return safety action is not required.
Key Features
- Three-way globe valve design: Supports both mixing and diverting flow control strategies in hydronic HVAC systems.
- Precise modulating control: Accepts a 2–10 VDC control signal for smooth, proportional valve positioning.
- High control accuracy: Modified equal percentage characteristic with linear B–AB port behavior improves regulation stability.
- Low leakage performance: ANSI Class VI leakage rating ensures tight shutoff and efficient system operation.
- Robust valve construction: Bronze body with brass and bronze trim supports long service life in water and glycol systems.
- High pressure capability: ANSI Class 250 rating with up to 400 psi below 150°F for demanding installations.
- Integrated actuator assembly: Supplied factory-mounted to ensure correct alignment, stroke matching, and reliable operation.
The G340B-N+SVB24-SR delivers the reliability and precision required for accurate three-way flow control in commercial HVAC and building automation systems.
