Belimo B249 Valve
The Belimo B249 is a high-performance 2-way characterized control valve designed for precision in hydronic systems. Featuring a 2-inch NPT female connection and a 46 Cv rating, this valve utilizes a specialized Tefzel® characterizing disc to maintain an equal percentage flow characteristic. This design effectively eliminates the "hunting" common in standard ball valves, providing stable control across air handling units, VAV boxes, and fan coil systems. Built for durability in demanding environments, the nickel-plated forged brass body is paired with a stainless steel ball and stem, ensuring compatibility with chilled or hot water systems and up to 60% glycol solutions. With a 400 psi body pressure rating and a 200 psi close-off pressure, the B249 provides zero-leakage performance to optimize energy efficiency in variable flow applications. This maintenance-free component integrates seamlessly with ARB, ARQB, and AFRB actuators for reliable HVAC automation and sequence control.
Key Benefits- Precise Flow Control: The integrated characterizing disc ensures equal percentage flow for superior loop stability.
- Corrosion Resistance: A stainless steel ball and stem prevent scale buildup and extend service life in hydronic loops.
- Maximum Efficiency: Bubbles-tight sealing provides zero leakage (Rating A), preventing energy loss during bypass or off-cycles.
- High Temperature Tolerance: Rated for fluid temperatures up to 250°F, making it suitable for high-temp hot water and steam-to-water heat exchangers.
- Versatile Compatibility: Standard NPT threaded ends allow for rapid installation in existing or new commercial piping layouts.
What actuators are compatible with the B249?
This valve is designed to work with Belimo ARB, ARQX, and AFRB (spring return) series actuators. Choice depends on your specific torque and fail-safe requirements.
Can this valve be used for steam applications?
The B249 is rated for hot water and glycol solutions up to 250°F. For direct steam applications, ensure your system parameters do not exceed the specific temperature and pressure limits of the PTFE seats.
What is the proper installation orientation?
For 2-way characterized control valves, the valve must be installed with the characterizing disc on the upstream side to achieve the intended flow curve.
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.
Belimo B249 Valve
The Belimo B249 is a high-performance 2-way characterized control valve designed for precision in hydronic systems. Featuring a 2-inch NPT female connection and a 46 Cv rating, this valve utilizes a specialized Tefzel® characterizing disc to maintain an equal percentage flow characteristic. This design effectively eliminates the "hunting" common in standard ball valves, providing stable control across air handling units, VAV boxes, and fan coil systems. Built for durability in demanding environments, the nickel-plated forged brass body is paired with a stainless steel ball and stem, ensuring compatibility with chilled or hot water systems and up to 60% glycol solutions. With a 400 psi body pressure rating and a 200 psi close-off pressure, the B249 provides zero-leakage performance to optimize energy efficiency in variable flow applications. This maintenance-free component integrates seamlessly with ARB, ARQB, and AFRB actuators for reliable HVAC automation and sequence control.
Key Benefits- Precise Flow Control: The integrated characterizing disc ensures equal percentage flow for superior loop stability.
- Corrosion Resistance: A stainless steel ball and stem prevent scale buildup and extend service life in hydronic loops.
- Maximum Efficiency: Bubbles-tight sealing provides zero leakage (Rating A), preventing energy loss during bypass or off-cycles.
- High Temperature Tolerance: Rated for fluid temperatures up to 250°F, making it suitable for high-temp hot water and steam-to-water heat exchangers.
- Versatile Compatibility: Standard NPT threaded ends allow for rapid installation in existing or new commercial piping layouts.
What actuators are compatible with the B249?
This valve is designed to work with Belimo ARB, ARQX, and AFRB (spring return) series actuators. Choice depends on your specific torque and fail-safe requirements.
Can this valve be used for steam applications?
The B249 is rated for hot water and glycol solutions up to 250°F. For direct steam applications, ensure your system parameters do not exceed the specific temperature and pressure limits of the PTFE seats.
What is the proper installation orientation?
For 2-way characterized control valves, the valve must be installed with the characterizing disc on the upstream side to achieve the intended flow curve.
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 B249 is a high-performance 2-way characterized control valve designed for precision in hydronic systems. Featuring a 2-inch NPT female connection and a 46 Cv rating, this valve utilizes a specialized Tefzel® characterizing disc to maintain an equal percentage flow characteristic. This design effectively eliminates the "hunting" common in standard ball valves, providing stable control across air handling units, VAV boxes, and fan coil systems. Built for durability in demanding environments, the nickel-plated forged brass body is paired with a stainless steel ball and stem, ensuring compatibility with chilled or hot water systems and up to 60% glycol solutions. With a 400 psi body pressure rating and a 200 psi close-off pressure, the B249 provides zero-leakage performance to optimize energy efficiency in variable flow applications. This maintenance-free component integrates seamlessly with ARB, ARQB, and AFRB actuators for reliable HVAC automation and sequence control.
Key Benefits- Precise Flow Control: The integrated characterizing disc ensures equal percentage flow for superior loop stability.
- Corrosion Resistance: A stainless steel ball and stem prevent scale buildup and extend service life in hydronic loops.
- Maximum Efficiency: Bubbles-tight sealing provides zero leakage (Rating A), preventing energy loss during bypass or off-cycles.
- High Temperature Tolerance: Rated for fluid temperatures up to 250°F, making it suitable for high-temp hot water and steam-to-water heat exchangers.
- Versatile Compatibility: Standard NPT threaded ends allow for rapid installation in existing or new commercial piping layouts.
What actuators are compatible with the B249?
This valve is designed to work with Belimo ARB, ARQX, and AFRB (spring return) series actuators. Choice depends on your specific torque and fail-safe requirements.
Can this valve be used for steam applications?
The B249 is rated for hot water and glycol solutions up to 250°F. For direct steam applications, ensure your system parameters do not exceed the specific temperature and pressure limits of the PTFE seats.
What is the proper installation orientation?
For 2-way characterized control valves, the valve must be installed with the characterizing disc on the upstream side to achieve the intended flow curve.
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.
