Description
The Belimo B214B+LF24-SR US is a 1/2 inch, 2-way characterized control ball valve with an integrated 24 V spring return modulating actuator. It provides precise equal percentage flow control with a Cv of 7.4 and tight shutoff performance for hydronic HVAC systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Belimo |
| Category |
Control Valves |
| Part Number |
B214B+LF24-SR US |
| Subcategory |
Ball Valves |
| Valve Type |
Characterized Control Valve (CCV) |
| Valve Size |
0.5 in (DN 15) |
| Flow Pattern |
2-way |
| Cv Rating |
7.4 |
| Flow Characteristic |
Equal percentage |
| Body Pressure Rating |
600 psi |
| Close-Off Pressure |
200 psi |
| Leakage Rate |
0% for A–AB |
| Pipe Connection |
Female NPT threaded |
| Valve Body Material |
Nickel-plated brass |
| Seat Material |
PTFE |
| Characterized Disc |
TEFZEL® |
| Fluid Compatibility |
Chilled or hot water, up to 60% glycol |
| Fluid Temperature Range |
0…250°F (-18…120°C) |
| Actuator Type |
Spring return, modulating |
| Control Signal |
2…10 V (4…20 mA with resistor) |
| Nominal Voltage |
AC/DC 24 V, 50/60 Hz |
| Power Consumption (Running) |
2.5 W |
| Electrical Connection |
18 GA plenum cable, 1 m, 1/2" NPT conduit |
| Degree of Protection |
IP54 / NEMA 2 |
| Weight |
15.41 lb |
Information About B214B+LF24-SR US
The B214B+LF24-SR US is part of Belimo’s characterized control valve range designed for accurate flow modulation in compact hydronic circuits. The valve features a precision-machined ball and TEFZEL® characterized disc that delivers stable equal percentage control across the operating range. Its factory-mounted LF24-SR US spring return actuator operates on AC/DC 24 V and supports modulating control with integrated position feedback and selectable fail-safe direction. The assembly is engineered for maintenance-free service and reliable long-term performance in commercial HVAC installations.
Key Features
- Characterized Ball Valve Design: Precision ball and TEFZEL® disc provide true equal percentage flow control for stable and repeatable modulation.
- Integrated Spring Return Actuator: Automatically drives the valve to a defined safety position during power loss to protect the system.
- Modulating Control Capability: Accepts 2…10 V control signals with optional 4…20 mA input using an external resistor.
- High Pressure And Tight Shutoff Performance: Rated for 600 psi body pressure with 200 psi close-off and zero leakage for A–AB.
- Durable Valve Materials: Nickel-plated brass body, chrome-plated ball, PTFE seat, and EPDM seals ensure long service life.
- Pre-Wired Electrical Connection: Supplied with plenum-rated cable and 1/2" NPT conduit connector for simplified installation.
- Integrated Position Feedback: Provides a 2…10 V feedback signal for accurate valve position monitoring.
The B214B+LF24-SR US delivers the reliability and precision required for accurate hydronic flow modulation and fail-safe control in HVAC systems.
