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Belimo Two-Way Control Valve is a high-performance valve used for precise flow control in HVAC systems such as chilled water and hot water circuits. It regulates flow in a single direction (inlet to outlet) and is commonly installed in AHU, FCU, and heat exchanger systems.
🔧 Key Features
- Two-Way Flow Design – controls fluid flow in one direction
- Characterized Control (Equal Percentage) – ensures smooth and accurate modulation
- High Accuracy & Stability – ideal for temperature control
- Bubble-Tight Shut-Off – minimal leakage for efficient operation
- Maintenance-Free Design – long service life
- Compact & Lightweight – easy installation in tight spaces
- Compatible with Actuators – electric / modulating (2–10V, 0–10V, BACnet, Modbus)
📏 Specifications
- Size Range: typically DN15 to DN150 (½” to 6”)
- Pressure Rating: up to PN25 / ~1600 kPa
- Temperature Range: approx. -10°C to +120°C (water & glycol)
- Flow Capacity (Kv/Cv): varies by model (e.g., Kvs 25 m³/h for DN50)
- Close-Off Pressure: up to 1400 kPa
- End Connections: Threaded / Flanged
- Control Type: On-Off / Floating / Modulating
⚙️ Construction Materials
- Body: Brass / Cast Iron / Ductile Iron
- Ball / Disc: Stainless Steel
- Seat: PTFE (Teflon)
- Stem: Stainless Steel
- Seals: EPDM
⚙️ Types of Belimo Two-Way Valves
- Ball Type Control Valve (Characterized Ball Valve – CCV)
- Globe Type Control Valve
- Pressure Independent Control Valve (PICV / Energy Valve) – advanced version with flow regulation
⚙️ Working Principle
- Actuator receives control signal (0–10V / 2–10V / digital)
- Valve modulates opening position
- Flow is adjusted precisely according to system demand
- Ensures stable temperature and energy-efficient operation
🏭 Applications
- HVAC chilled water systems
- Air Handling Units (AHU)
- Fan Coil Units (FCU)
- Heat exchangers
- District cooling systems
- Commercial buildings, hospitals, malls, hotels
✅ Advantages
- Highly accurate flow control
- Energy-efficient HVAC operation
- Low leakage and tight shut-off
- Compact and easy installation
- Long life with minimal maintenance
- Suitable for automation & BMS integration
⭐ Conclusion
Belimo Two-Way Control Valves are among the best choices for modern HVAC systems, offering precision control, reliability, and energy savings, making them ideal for efficient building management and fluid control applications.