Belimo

Belimo is a manufacturer of actuators, control valves, and sensors for HVAC applications in commercial, industrial, and institutional buildings. Founded in 1975 in Gossau, Zurich, Switzerland and headquartered in Hinwil, Switzerland, with US headquarters in Danbury, Connecticut, Belimo employs approximately 2,700 people and recorded revenue of 1.121 billion Swiss francs in 2024. The name comes from the German phrase meaning "advise, deliver, install." Belimo actuators cover 22 to 1,400 inch-pound torque, using brushless DC motors. Control valves cover characterized ball valves, globe valves, butterfly valves, and pressure-independent and cloud-connected configurations. All actuators carry a 5-year warranty, extendable to 7 years with cloud monitoring registration.

Product Lines

Belimo Damper Actuators

Belimo damper actuators cover TF Series (22 in-lb), LF Series (35 in-lb), NF Series (90 in-lb), and AF Series (180 in-lb) through configurations up to 1,400 in-lb. All use brushless DC motors. Spring-return fail-safe versions are available across the torque range. Accept 0-10 VDC, 2-10 VDC, and on/off control signals. UL Listed.

Belimo Characterized Control Valves (CCV)

Belimo Characterized Control Valves (B-Series) are two-way and three-way valves with factory-characterized equal-percentage or linear flow curves for commercial HVAC heating and cooling coil applications, starting at Cv 0.3. Supplied as factory-assembled valve-plus-actuator assemblies for simplified installation.

Belimo Globe Valves

Belimo globe valves cover 1/2-inch through 6-inch pipe sizes for commercial HVAC coil control in larger flow applications. Available as valve-plus-actuator assemblies for tight shut-off and precise flow control.

Belimo Butterfly Valves

Belimo butterfly valves cover 2-inch through 24-inch pipe sizes for large-flow commercial and industrial HVAC applications, including chilled water and hot water distribution. Available with modulating or on/off actuators.

Belimo Energy Valve and EPIV

The Belimo Energy Valve is a cloud-connected pressure-independent characterized control valve combining flow measurement, differential pressure control, and BTU metering for real-time coil energy performance monitoring. The EPIV provides pressure-independent flow control without cloud monitoring features. Both address variable-flow commercial HVAC coil control.

Belimo Sensors

Belimo sensors cover duct temperature and humidity, pipe temperature, room temperature and CO2, outdoor air quality, humidity, and 22G refrigerant gas monitors (UL 2075). NEMA 4X and IP65-rated options for wet and washdown environments.

Why Contractors Specify Belimo

HVAC engineers and building automation contractors specify Belimo because the product line covers 22 to 1,400 in-lb damper actuation and 1/2-inch through 24-inch valve sizes, making it a primary reference for commercial HVAC actuator and valve selection. Belimo's 5-year actuator warranty (extendable to 7 years with cloud monitoring) is among the longest standard warranties in the commercial HVAC actuator market. Brushless DC motors provide extended service life. The CCV assembly format combining valve body and actuator simplifies installation. Belimo's Energy Valve and EPIV address pressure-independent valve applications with integrated flow measurement.

How to Choose a Belimo Product

For actuator selection, calculate the required damper torque per the damper manufacturer's specification, then select the Belimo series meeting or exceeding that torque: TF (22 in-lb), LF (35 in-lb), NF (90 in-lb), AF (180 in-lb), or higher-torque to 1,400 in-lb. For fail-safe dampers (outdoor air, exhaust), specify spring-return. For non-fail-safe dampers (mixed air, return air), specify non-spring. For control valve selection, determine the coil Cv, pipe size, and required flow characteristic. CCVs cover 1/2-inch to 2-inch; globe valves cover 1/2-inch to 6-inch; butterfly valves cover 2-inch to 24-inch. For pressure-independent variable-flow applications, the EPIV or Energy Valve is appropriate.

FAQs

Where is Belimo headquartered and when was it founded?
Founded in 1975 in Gossau, Zurich, Switzerland; headquartered in Hinwil, Switzerland; US headquarters in Danbury, Connecticut. Approximately 2,700 employees; 1.121 billion CHF revenue in 2024. Name from the German phrase meaning "advise, deliver, install."

What warranty does Belimo offer on actuators?
Standard 5-year warranty on actuators, extendable to 7 years with Belimo cloud monitoring registration.

What is the difference between Belimo LF Series and NF Series damper actuators?
The LF Series delivers 35 in-lb for light commercial damper applications. The NF Series delivers 90 in-lb for standard commercial HVAC dampers requiring more torque. Both use brushless DC motors and are available in spring-return and non-spring configurations. Select based on the damper manufacturer's published torque requirement.

What is a Belimo Characterized Control Valve (CCV)?
A Belimo CCV is a factory-assembled valve-plus-actuator combining a characterized ball valve with an equal-percentage or linear flow curve for stable control loop performance in HVAC coil applications. B-Series CCVs start at Cv 0.3 in two-way and three-way configurations for 2-pipe and 4-pipe coil installations.

What is the difference between the Belimo Energy Valve and the EPIV?
Both are pressure-independent characterized control valves maintaining constant flow regardless of system pressure variation. The Energy Valve adds cloud-connected BTU metering for real-time coil energy performance data. The EPIV provides pressure-independent flow control without cloud monitoring. The Energy Valve is appropriate where coil energy performance is part of the building performance management program.

What pipe sizes do Belimo control valves cover?
B-Series CCVs: 1/2-inch to 2-inch. Globe valves: 1/2-inch to 6-inch. Butterfly valves: 2-inch to 24-inch. The full range covers light residential through large commercial and industrial HVAC flow control applications.