Belimo G250B-N+LVKX24-MFT Modulating Globe Valve Assembly provides accurate 2-way fluid modulation for commercial heating, cooling, air handling, and low-pressure steam applications.

This assembly pairs the G250B-N globe valve with the LVKX24-MFT electronic linear actuator to support stable control of chilled water, hot water, steam, and water/glycol mixtures up to 60%. 

The 2-inch internal threaded valve features Cv 40 flow capacity, ANSI Class 250 pressure rating, bronze body and trim, stainless steel stem, EPDM O-ring, and modified equal percentage flow characteristics for dependable system balancing and consistent thermal output.  The valve body is rated up to 400 psi below 150°F, with steam service limits of 35 psi maximum inlet pressure and 20 psi maximum differential pressure.

The included actuator operates on 24 VAC/DC power, uses MFT programmable control, and supports 2–10 VDC or 4–20 mA modulation with integrated 500-ohm resistance.  Electronic fail-safe operation helps drive the valve to a designated safe position during power loss, while IP54 protection, NEMA 2 rating, and UL Type 2 enclosure construction support reliable use in mechanical rooms and HVAC equipment environments.

Built for air handling coils, hydronic loops, heat exchangers, and variable flow distribution systems, this Belimo globe valve assembly delivers durable construction, precise modulation, and application-ready compatibility for commercial HVAC control.

Belimo G250B-N+LVKX24-MFT directly replaces G250NVF24-MFT and G250+SVKX24-MFT Proportional Spring Return Normally Open.
 

Frequently Asked Questions
 

• What is the Belimo G250B-N+LVKX24-MFT used for?

The Belimo G250B-N+LVKX24-MFT Modulating Globe Valve Assembly is used for 2-way fluid modulation in commercial HVAC systems, including air handling units, heating coils, cooling coils, hydronic loops, heat exchangers, and low-pressure steam applications.

• What fluids are compatible with this valve assembly?

This Belimo valve assembly is compatible with chilled water, hot water, steam, and water/glycol mixtures up to 60%.

• What is the valve size?

The G250B-N valve has a 2-inch internal threaded connection.

• What is the Cv rating of this valve?

The valve has a Cv rating of 40, making it suitable for controlled flow applications in commercial HVAC systems.

• What type of actuator is included?

This assembly includes the Belimo LVKX24-MFT electronic linear actuator with MFT programmable control.

• What voltage does the actuator require?

The LVKX24-MFT actuator operates on 24 VAC/DC power.

• Does this valve assembly support modulating control?

Yes. The actuator supports modulating control with 2–10 VDC or 4–20 mA input using integrated 500-ohm resistance.

• Does the actuator have fail-safe operation?

Yes. The actuator includes electronic fail-safe functionality that helps move the valve to a designated safe position during power loss.

• What is the pressure rating of the valve body?

The valve body is ANSI Class 250 rated and is listed up to 400 psi below 150°F.

• Can this valve be used for steam?

Yes. The valve can be used for low-pressure steam applications, with steam limits of 35 psi maximum inlet pressure and 20 psi maximum differential pressure.

• What materials are used in the valve construction?

The valve includes a bronze body, bronze trim, stainless steel stem, and EPDM O-ring.

• What enclosure rating does the actuator have?

The actuator is rated IP54, NEMA 2, and UL Enclosure Type 2 for use in protected HVAC and mechanical room environments.