Belimo B311B+LRB24-SR Valve Assembly
The Belimo B311B+LRB24-SR is a precision-engineered 3-way characterized control valve (CCV) assembly designed for modulating control of hot or chilled water in HVAC systems. Featuring a 1/2" NPT connection and a flow coefficient of Cv 1.9, this valve utilizes a chrome-plated brass ball and stem to ensure reliable performance in closed-loop hydronic circuits. It is paired with the LRB24-SR non-spring return actuator, which delivers 45 in-lb of torque and accepts a 2-10 VDC proportional control signal. Operating on a 24VAC/DC power supply, the assembly provides an equal percentage flow characteristic for stable temperature control. The integrated blow-out proof stem and fiberglass-reinforced Teflon seals enhance durability under constant cycling. This modulating valve actuator assembly is rated for a maximum fluid temperature of 250°F and a close-off pressure of 200 psi, making it a standard choice for fan coil units and air handling reheat coils.
Key Benefits for Installation- Precise Flow Control: The specialized Ametek disk ensures an equal percentage flow characteristic, preventing hunting and improving system efficiency.
- High Close-Off Pressure: Rated for 200 psi close-off, ensuring the Belimo 3-way valve remains leak-free even in demanding hydronic loops.
- Low Power Consumption: The LRB24-SR actuator uses only 1.5W during operation, reducing the load on 24V control transformers.
- Ease of Commissioning: Features a manual override button and a universal spindle for simplified mechanical installation and troubleshooting.
What is the difference between the B311B and the B311?
The B311B model utilizes a chrome-plated brass ball and stem (brass trim), whereas the standard B311 typically features stainless steel trim for higher-temperature or steam applications.
Can this actuator be used for On/Off control?
The LRB24-SR is designed specifically for 2-10 VDC modulating control. For On/Off or Floating point applications, a different actuator model, such as the LRB24-3, would be required.
What happens if power is lost?
This is a non-spring return actuator. Upon loss of power, the valve will remain in its last commanded position rather than returning to a fail-safe open or closed state.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $360.90
-65%$360.90
$126.31Belimo B311B+LRB24-SR Valve Assembly
The Belimo B311B+LRB24-SR is a precision-engineered 3-way characterized control valve (CCV) assembly designed for modulating control of hot or chilled water in HVAC systems. Featuring a 1/2" NPT connection and a flow coefficient of Cv 1.9, this valve utilizes a chrome-plated brass ball and stem to ensure reliable performance in closed-loop hydronic circuits. It is paired with the LRB24-SR non-spring return actuator, which delivers 45 in-lb of torque and accepts a 2-10 VDC proportional control signal. Operating on a 24VAC/DC power supply, the assembly provides an equal percentage flow characteristic for stable temperature control. The integrated blow-out proof stem and fiberglass-reinforced Teflon seals enhance durability under constant cycling. This modulating valve actuator assembly is rated for a maximum fluid temperature of 250°F and a close-off pressure of 200 psi, making it a standard choice for fan coil units and air handling reheat coils.
Key Benefits for Installation- Precise Flow Control: The specialized Ametek disk ensures an equal percentage flow characteristic, preventing hunting and improving system efficiency.
- High Close-Off Pressure: Rated for 200 psi close-off, ensuring the Belimo 3-way valve remains leak-free even in demanding hydronic loops.
- Low Power Consumption: The LRB24-SR actuator uses only 1.5W during operation, reducing the load on 24V control transformers.
- Ease of Commissioning: Features a manual override button and a universal spindle for simplified mechanical installation and troubleshooting.
What is the difference between the B311B and the B311?
The B311B model utilizes a chrome-plated brass ball and stem (brass trim), whereas the standard B311 typically features stainless steel trim for higher-temperature or steam applications.
Can this actuator be used for On/Off control?
The LRB24-SR is designed specifically for 2-10 VDC modulating control. For On/Off or Floating point applications, a different actuator model, such as the LRB24-3, would be required.
What happens if power is lost?
This is a non-spring return actuator. Upon loss of power, the valve will remain in its last commanded position rather than returning to a fail-safe open or closed state.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Belimo B311B+LRB24-SR is a precision-engineered 3-way characterized control valve (CCV) assembly designed for modulating control of hot or chilled water in HVAC systems. Featuring a 1/2" NPT connection and a flow coefficient of Cv 1.9, this valve utilizes a chrome-plated brass ball and stem to ensure reliable performance in closed-loop hydronic circuits. It is paired with the LRB24-SR non-spring return actuator, which delivers 45 in-lb of torque and accepts a 2-10 VDC proportional control signal. Operating on a 24VAC/DC power supply, the assembly provides an equal percentage flow characteristic for stable temperature control. The integrated blow-out proof stem and fiberglass-reinforced Teflon seals enhance durability under constant cycling. This modulating valve actuator assembly is rated for a maximum fluid temperature of 250°F and a close-off pressure of 200 psi, making it a standard choice for fan coil units and air handling reheat coils.
Key Benefits for Installation- Precise Flow Control: The specialized Ametek disk ensures an equal percentage flow characteristic, preventing hunting and improving system efficiency.
- High Close-Off Pressure: Rated for 200 psi close-off, ensuring the Belimo 3-way valve remains leak-free even in demanding hydronic loops.
- Low Power Consumption: The LRB24-SR actuator uses only 1.5W during operation, reducing the load on 24V control transformers.
- Ease of Commissioning: Features a manual override button and a universal spindle for simplified mechanical installation and troubleshooting.
What is the difference between the B311B and the B311?
The B311B model utilizes a chrome-plated brass ball and stem (brass trim), whereas the standard B311 typically features stainless steel trim for higher-temperature or steam applications.
Can this actuator be used for On/Off control?
The LRB24-SR is designed specifically for 2-10 VDC modulating control. For On/Off or Floating point applications, a different actuator model, such as the LRB24-3, would be required.
What happens if power is lost?
This is a non-spring return actuator. Upon loss of power, the valve will remain in its last commanded position rather than returning to a fail-safe open or closed state.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
