
Belimo B318+LF24-SR Valve Assembly
The Belimo B318+LF24-SR Valve Assembly is a high-performance 3-way Characterized Control Valve (CCV) engineered for precise hydronic control in commercial HVAC systems. This assembly features a 3/4" NPT connection and a Cv rating of 7.4, making it an ideal choice for regulating chilled or hot water in air handling units and fan coil units. The valve is constructed with a stainless steel trim and ball to resist corrosion and ensure longevity in demanding building automation systems (BAS). The integrated LF24-SR actuator delivers 35 in-lb of torque and utilizes a spring return fail-safe mechanism, ensuring the valve drives to a safe position during power loss. Operating on 24Vac/Vdc, the actuator accepts a 2-10Vdc modulating control signal for proportional flow management. Designed for mixing or diverting applications, the B318+LF24-SR maintains an equal percentage flow characteristic in the A-port, providing superior light-load stability and linear heat transfer in hydronic systems with variable flow requirements.
Key Benefits- Precise Flow Control: Featuring a Tefzel characterized disc, the Belimo B318 provides a true equal percentage flow characteristic for accurate temperature regulation.
- Durable Construction: The stainless steel ball and stem paired with PTFE seats offer high resistance to scaling and wear in systems with up to 60% glycol.
- Reliable Fail-Safe: The LF24-SR spring return actuator ensures dependable operation to a normal position upon signal or power interruption.
- Versatile Application: Rated for a 600 psi body pressure and temperature ranges from 0°F to 250°F, suitable for diverse HVAC mechanical rooms.
Can this assembly be used for steam applications?
No, the Belimo B318 is designed specifically for chilled or hot water and is not rated for steam high-pressure environments.
Does the LF24-SR actuator include an auxiliary switch?
Base models like the LF24-SR are modulating actuators without switches; however, the -S version (LF24-SR-S) includes a built-in SPDT auxiliary switch if required for position signaling.
What is the maximum close-off pressure for this 3/4" valve?
This 3-way CCV provides a close-off pressure of 200 psi, ensuring tight shut-off and preventing leakage in high-head pumping systems.
This item is not eligible for free shipping.
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: $527.81
-65%$527.81
$184.73Belimo B318+LF24-SR Valve Assembly
The Belimo B318+LF24-SR Valve Assembly is a high-performance 3-way Characterized Control Valve (CCV) engineered for precise hydronic control in commercial HVAC systems. This assembly features a 3/4" NPT connection and a Cv rating of 7.4, making it an ideal choice for regulating chilled or hot water in air handling units and fan coil units. The valve is constructed with a stainless steel trim and ball to resist corrosion and ensure longevity in demanding building automation systems (BAS). The integrated LF24-SR actuator delivers 35 in-lb of torque and utilizes a spring return fail-safe mechanism, ensuring the valve drives to a safe position during power loss. Operating on 24Vac/Vdc, the actuator accepts a 2-10Vdc modulating control signal for proportional flow management. Designed for mixing or diverting applications, the B318+LF24-SR maintains an equal percentage flow characteristic in the A-port, providing superior light-load stability and linear heat transfer in hydronic systems with variable flow requirements.
Key Benefits- Precise Flow Control: Featuring a Tefzel characterized disc, the Belimo B318 provides a true equal percentage flow characteristic for accurate temperature regulation.
- Durable Construction: The stainless steel ball and stem paired with PTFE seats offer high resistance to scaling and wear in systems with up to 60% glycol.
- Reliable Fail-Safe: The LF24-SR spring return actuator ensures dependable operation to a normal position upon signal or power interruption.
- Versatile Application: Rated for a 600 psi body pressure and temperature ranges from 0°F to 250°F, suitable for diverse HVAC mechanical rooms.
Can this assembly be used for steam applications?
No, the Belimo B318 is designed specifically for chilled or hot water and is not rated for steam high-pressure environments.
Does the LF24-SR actuator include an auxiliary switch?
Base models like the LF24-SR are modulating actuators without switches; however, the -S version (LF24-SR-S) includes a built-in SPDT auxiliary switch if required for position signaling.
What is the maximum close-off pressure for this 3/4" valve?
This 3-way CCV provides a close-off pressure of 200 psi, ensuring tight shut-off and preventing leakage in high-head pumping systems.
This item is not eligible for free shipping.
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 B318+LF24-SR Valve Assembly is a high-performance 3-way Characterized Control Valve (CCV) engineered for precise hydronic control in commercial HVAC systems. This assembly features a 3/4" NPT connection and a Cv rating of 7.4, making it an ideal choice for regulating chilled or hot water in air handling units and fan coil units. The valve is constructed with a stainless steel trim and ball to resist corrosion and ensure longevity in demanding building automation systems (BAS). The integrated LF24-SR actuator delivers 35 in-lb of torque and utilizes a spring return fail-safe mechanism, ensuring the valve drives to a safe position during power loss. Operating on 24Vac/Vdc, the actuator accepts a 2-10Vdc modulating control signal for proportional flow management. Designed for mixing or diverting applications, the B318+LF24-SR maintains an equal percentage flow characteristic in the A-port, providing superior light-load stability and linear heat transfer in hydronic systems with variable flow requirements.
Key Benefits- Precise Flow Control: Featuring a Tefzel characterized disc, the Belimo B318 provides a true equal percentage flow characteristic for accurate temperature regulation.
- Durable Construction: The stainless steel ball and stem paired with PTFE seats offer high resistance to scaling and wear in systems with up to 60% glycol.
- Reliable Fail-Safe: The LF24-SR spring return actuator ensures dependable operation to a normal position upon signal or power interruption.
- Versatile Application: Rated for a 600 psi body pressure and temperature ranges from 0°F to 250°F, suitable for diverse HVAC mechanical rooms.
Can this assembly be used for steam applications?
No, the Belimo B318 is designed specifically for chilled or hot water and is not rated for steam high-pressure environments.
Does the LF24-SR actuator include an auxiliary switch?
Base models like the LF24-SR are modulating actuators without switches; however, the -S version (LF24-SR-S) includes a built-in SPDT auxiliary switch if required for position signaling.
What is the maximum close-off pressure for this 3/4" valve?
This 3-way CCV provides a close-off pressure of 200 psi, ensuring tight shut-off and preventing leakage in high-head pumping systems.
This item is not eligible for free shipping.
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.












