Description
The Belimo B340L+AFRXUP-S is a factory-assembled 3-way ball valve with a configurable spring return actuator designed for reliable on/off control in hydronic HVAC systems. Supporting a wide AC/DC voltage range, it delivers dependable changeover or diverting flow control with integrated auxiliary switching.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
Control Valves |
| Part Number |
B340L+AFRXUP-S |
| Subcategory |
Ball Valves |
| Valve Type |
Ball Valve (BV) |
| Valve Size |
1.5 in (DN 40) |
| Flow Pattern |
3-way (Changeover / Diverting) |
| Flow Coefficient |
Cv 57 |
| Flow Characteristic |
Modified linear |
| Controllable Flow Range |
75° |
| Leakage Rate |
0% |
| Body Pressure Rating |
400 psi |
| Close-Off Pressure |
200 psi |
| Fluid Compatibility |
Chilled water, hot water, up to 60% glycol |
| Fluid Temperature Range |
0…250°F (-18…120°C) |
| Pipe Connection |
NPT female |
| Valve Body Material |
Nickel-plated brass |
| Ball Material |
Chrome-plated brass |
| Seat Material |
PTFE |
| Actuator Type |
Spring return |
| Control Type |
On/Off |
| Nominal Voltage |
AC 24…240 V / DC 24…125 V |
| Power Consumption (Operation) |
7 W |
| Power Consumption (Rest) |
3.5 W |
| Auxiliary Switches |
2 × SPDT |
| Angle of Rotation |
90° |
| Running Time |
75 s / 90° |
| Protection Rating |
IP54, NEMA 2 |
| Weight |
9.0 lb |
Information About B340L+AFRXUP-S
The B340L+AFRXUP-S is part of Belimo’s configurable 3-way ball valve assemblies engineered for flexible hydronic flow control applications. The nickel-plated brass valve body and PTFE seating provide corrosion resistance and long-term sealing performance. Factory-fitted with a spring return actuator, the assembly ensures automatic fail-safe positioning during power loss and supports a wide AC/DC voltage range for simplified electrical integration. This valve-actuator combination is commonly used in heating and cooling systems requiring reliable changeover or diverting flow control.
Key Features
- 3-Way Ball Valve Configuration: Supports both changeover and diverting flow patterns, allowing flexible hydronic system design.
- Spring Return Fail-Safe Actuator: Automatically drives the valve to a predefined safety position upon power interruption.
- Wide Voltage Compatibility: Operates on AC 24–240 V and DC 24–125 V, reducing the need for multiple actuator variants.
- Cv 57 Flow Capacity: Provides efficient flow handling for 1.5-inch piping while maintaining stable control characteristics.
- Zero Leakage Performance: Ensures tight shutoff to improve system efficiency and prevent unwanted bypass flow.
- Dual SPDT Auxiliary Switches: Enable precise position indication, interlocking, and system feedback functions.
- Manual Override Capability: Includes a hex crank for manual positioning during commissioning or maintenance activities.
The B340L+AFRXUP-S delivers the reliability and precision required for safe and consistent 3-way hydronic flow control in commercial HVAC applications.
