Description
The Belimo B340L+AFRBUP is a factory-assembled three-way ball valve with a spring return actuator designed for reliable on/off hydronic control. It combines a 1.5 inch valve body with a wide-range AC/DC powered actuator to provide dependable changeover or diverting operation in HVAC systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
Control Valves |
| Part Number |
B340L+AFRBUP |
| Subcategory |
Ball Valves |
| Valve Size |
1.5 in [40 mm] |
| Valve Type |
3-way changeover / diverting |
| Cv Rating |
57 |
| Flow Characteristic |
Modified linear |
| Flow Pattern |
3-way |
| Controllable Flow Range |
75° |
| Leakage Rate |
0% |
| Fluid Type |
Chilled or hot water, up to 60% glycol |
| Fluid Temperature Range |
-18…120°C [0…250°F] |
| Body Pressure Rating |
400 psi |
| Close-Off Pressure |
200 psi |
| Pipe Connection |
NPT female |
| Valve Body Material |
Nickel-plated brass |
| Ball Material |
Chrome-plated brass |
| Nominal Voltage |
AC 24…240 V / DC 24…125 V |
| Control Type |
On/Off |
| Power Consumption (Operation) |
7 W |
| Power Consumption (Rest) |
3.5 W |
| Transformer Sizing |
18 VA |
| Actuator Rotation |
90° |
| Running Time (Motor) |
75 s / 90° |
| Running Time (Fail-Safe) |
<20 s |
| Degree of Protection |
IP54 / NEMA 2 |
| Ambient Temperature |
-30…50°C |
| Weight |
9.2 lb |
Information About B340L+AFRBUP
The B340L+AFRBUP is part of Belimo’s ball valve assemblies engineered for dependable hydronic system control. The valve features a durable nickel-plated brass body with PTFE seats to ensure zero leakage and consistent performance in heating and cooling applications. Its integrated AFRBUP spring return actuator supports a wide voltage range, allowing use across diverse electrical standards without additional transformers. Factory assembly ensures correct alignment between the valve and actuator, simplifying installation and supporting long-term reliability.
Key Features
- Three Way Ball Valve Configuration: Supports changeover or diverting operation with a modified linear flow characteristic for stable hydronic control.
- Spring Return Fail-Safe Actuator: Automatically drives the valve to a predefined safety position during power loss to protect system operation.
- Wide Voltage Power Supply: Operates on AC 24…240 V or DC 24…125 V to accommodate a broad range of electrical infrastructures.
- On Off Control Operation: Provides simple and robust valve positioning suitable for isolation and changeover applications.
- Zero Leakage Valve Design: Precision valve components ensure tight shutoff and reliable flow separation.
- Manual Override Capability: Supplied hex crank allows manual valve positioning during commissioning or maintenance.
- Maintenance-Free Construction: Designed for long service life with minimal servicing requirements.
The B340L+AFRBUP delivers the reliability and precision required for on/off hydronic flow control with dependable fail-safe operation in HVAC systems.
