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BELIMO

Belimo is a Swiss manufacturer of field devices for controlling and regulating heating, ventilation, and air conditioning systems. Founded in 1975, the company has focused on damper actuators, control valves, and sensors, and has expanded into measuring devices and meters for building automation. Belimo products are used in commercial buildings, data centers, healthcare facilities, and industrial process environments where precise control of air and water flows is required. The product families include characterized control valves, ball valves, butterfly valves, damper actuators (spring return and non-spring return), zone valve actuators, and a range of sensors for temperature, humidity, pressure, and flow. These devices are typically specified by mechanical engineers and installed by HVAC contractors, and they are maintained by facility teams. Belimo actuators are known for their compact designs, consistent torque output, and options for fail-safe operation. Many models offer NEMA 2 / IP54 or IP20 enclosures, and they operate on common control signals such as 0-10 V, 4-20 mA, floating point, or on/off. Valve bodies are available in brass, stainless steel, and other materials, with pressure ratings that suit hydronic systems. 3G Electric supplies Belimo products globally, with a catalog that includes over 130 SKUs covering actuators, valves, sensors, and accessories. The product range includes 2-way and 3-way characterized control valves with NPT or flanged connections, CV values from fractional to several hundred, and close-off ratings up to 200 psi or higher. Damper actuators are offered in torque ratings from 35 in-lb to 90 in-lb and beyond, with proportional or floating control, and with or without spring return. Accessories such as auxiliary switches, mounting hardware, and replacement parts are also available. 3G Electric provides technical documentation, including datasheets and installation manuals, to support specification and procurement. The company serves a global customer base, shipping to projects in North America, Europe, Asia, and other regions. Belimo products are often selected for their interoperability with building automation systems and their adherence to industry standards. For technical buyers, key considerations include torque requirements, control signal compatibility, enclosure ratings, and media compatibility. 3G Electric's catalog allows filtering by these attributes to match specific application needs. The Belimo line is part of a broader offering that includes industrial burners, pumps, and gas controls, making 3G Electric a single source for multiple system components. This integration can simplify procurement and reduce lead times for maintenance and retrofit projects. Belimo's product documentation is publicly available, and 3G Electric can provide additional support for selection and cross-referencing. The company does not manufacture Belimo products but distributes them as part of its industrial equipment portfolio. Belimo's headquarters are in Hinwil, Switzerland, and it has manufacturing facilities in Switzerland, the United States, and China. The company is publicly traded and reports annual sales, with a significant portion from replacement and retrofit projects. Belimo actuators and valves are often used in variable air volume (VAV) boxes, fan coil units, air handling units, and central plant systems. The sensors are used for monitoring and control of temperature, humidity, and pressure in ducts and pipes. 3G Electric's inventory includes both current and legacy Belimo models, which can be important for maintaining existing installations. The catalog is updated regularly, and product availability can be checked via the website. For specific technical questions, 3G Electric's support team can assist with model selection and compatibility. Belimo products are typically covered by a limited warranty, and 3G Electric can provide warranty information upon request. The company encourages buyers to verify specifications against project requirements before ordering. Belimo's website offers selection tools and CAD files, which can be used in conjunction with 3G Electric's catalog. This combination of manufacturer resources and distributor support aims to streamline the specification process. Buyers should confirm authenticity and warranty terms at the time of purchase. Belimo's product range is extensive, and 3G Electric's catalog represents a subset of available SKUs. For items not listed, inquiries can be made for sourcing. The company's focus is on providing accurate product data and reliable fulfillment. Belimo continues to develop new products, such as the ZoneTight zone valves and the Energy Valve, which combine hardware and software for energy monitoring. These innovations reflect the trend toward integrated building performance. 3G Electric aims to keep pace with these developments by updating its catalog and providing relevant technical information. In summary, Belimo is a established manufacturer of HVAC control devices, and 3G Electric distributes a range of these products to global customers. The combination of Belimo's engineering and 3G Electric's distribution supports efficient procurement for building automation and HVAC projects.

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About BELIMO

Belimo is a Swiss manufacturer of field devices for controlling and regulating heating, ventilation, and air conditioning systems. Founded in 1975, the company has focused on damper actuators, control valves, and sensors, and has expanded into measuring devices and meters for building automation. Belimo products are used in commercial buildings, data centers, healthcare facilities, and industrial process environments where precise control of air and water flows is required. The product families include characterized control valves, ball valves, butterfly valves, damper actuators (spring return and non-spring return), zone valve actuators, and a range of sensors for temperature, humidity, pressure, and flow. These devices are typically specified by mechanical engineers and installed by HVAC contractors, and they are maintained by facility teams. Belimo actuators are known for their compact designs, consistent torque output, and options for fail-safe operation. Many models offer NEMA 2 / IP54 or IP20 enclosures, and they operate on common control signals such as 0-10 V, 4-20 mA, floating point, or on/off. Valve bodies are available in brass, stainless steel, and other materials, with pressure ratings that suit hydronic systems. 3G Electric supplies Belimo products globally, with a catalog that includes over 130 SKUs covering actuators, valves, sensors, and accessories. The product range includes 2-way and 3-way characterized control valves with NPT or flanged connections, CV values from fractional to several hundred, and close-off ratings up to 200 psi or higher. Damper actuators are offered in torque ratings from 35 in-lb to 90 in-lb and beyond, with proportional or floating control, and with or without spring return. Accessories such as auxiliary switches, mounting hardware, and replacement parts are also available. 3G Electric provides technical documentation, including datasheets and installation manuals, to support specification and procurement. The company serves a global customer base, shipping to projects in North America, Europe, Asia, and other regions. Belimo products are often selected for their interoperability with building automation systems and their adherence to industry standards. For technical buyers, key considerations include torque requirements, control signal compatibility, enclosure ratings, and media compatibility. 3G Electric's catalog allows filtering by these attributes to match specific application needs. The Belimo line is part of a broader offering that includes industrial burners, pumps, and gas controls, making 3G Electric a single source for multiple system components. This integration can simplify procurement and reduce lead times for maintenance and retrofit projects. Belimo's product documentation is publicly available, and 3G Electric can provide additional support for selection and cross-referencing. The company does not manufacture Belimo products but distributes them as part of its industrial equipment portfolio. Belimo's headquarters are in Hinwil, Switzerland, and it has manufacturing facilities in Switzerland, the United States, and China. The company is publicly traded and reports annual sales, with a significant portion from replacement and retrofit projects. Belimo actuators and valves are often used in variable air volume (VAV) boxes, fan coil units, air handling units, and central plant systems. The sensors are used for monitoring and control of temperature, humidity, and pressure in ducts and pipes. 3G Electric's inventory includes both current and legacy Belimo models, which can be important for maintaining existing installations. The catalog is updated regularly, and product availability can be checked via the website. For specific technical questions, 3G Electric's support team can assist with model selection and compatibility. Belimo products are typically covered by a limited warranty, and 3G Electric can provide warranty information upon request. The company encourages buyers to verify specifications against project requirements before ordering. Belimo's website offers selection tools and CAD files, which can be used in conjunction with 3G Electric's catalog. This combination of manufacturer resources and distributor support aims to streamline the specification process. Buyers should confirm authenticity and warranty terms at the time of purchase. Belimo's product range is extensive, and 3G Electric's catalog represents a subset of available SKUs. For items not listed, inquiries can be made for sourcing. The company's focus is on providing accurate product data and reliable fulfillment. Belimo continues to develop new products, such as the ZoneTight zone valves and the Energy Valve, which combine hardware and software for energy monitoring. These innovations reflect the trend toward integrated building performance. 3G Electric aims to keep pace with these developments by updating its catalog and providing relevant technical information. In summary, Belimo is a established manufacturer of HVAC control devices, and 3G Electric distributes a range of these products to global customers. The combination of Belimo's engineering and 3G Electric's distribution supports efficient procurement for building automation and HVAC projects.

Common Applications

  • Commercial HVAC — Belimo NMB24-SR damper actuator for proportional control of outside air dampers in air handling units.
  • Building automation — Belimo 22DTH-51M duct temperature and humidity sensor for monitoring supply air conditions.
  • Hydronic heating — Belimo B209B characterized control valve for precise water flow control in fan coil units.
  • Zone control — Belimo SY4-110 zone valve actuator for retrofit applications in perimeter heating systems.
  • Fail-safe applications — Belimo LF24-SR spring return actuator for freeze protection dampers in data centers.
  • Ball valve control — Belimo TFRB24 fail-safe actuator for on/off control of B220 series ball valves in chilled water systems.

Frequently asked questions

Common questions about BELIMO from 3G Electric.

What is the difference between Belimo spring return and non-spring return actuators?

Belimo spring return actuators include a mechanical spring that returns the damper or valve to a fail-safe position when power is removed. Non-spring return actuators hold their last position on power loss. Spring return models are typically used where safety or freeze protection requires a defined position, such as outside air dampers. Non-spring return models are used for applications where maintaining position is acceptable. Both types are available in various torque ratings and control signal options.

What control signal types do Belimo damper actuators support?

Belimo damper actuators are available with several control input types: on/off, floating point (3-point), proportional 0-10 VDC or 4-20 mA, and some with Modbus or BACnet communication. The choice depends on the building automation system and the required level of control. Proportional actuators allow precise positioning, while on/off and floating point are used for simpler applications. Many actuators are configurable for different signal types via switches or software.

What is the close-off rating for Belimo characterized control valves?

Belimo characterized control valves have close-off ratings that vary by model and size. For example, the B209B 2-way valve with 1/2 in NPT has a close-off rating of 200 psi. Larger valves may have different ratings. The close-off rating indicates the maximum differential pressure the valve can seal against when closed. It is important to select a valve with a close-off rating that meets or exceeds the system's differential pressure to ensure proper shutoff.

Are Belimo sensors compatible with all building automation systems?

Belimo sensors provide standard output signals such as 0-10 V, 0-5 V, 4-20 mA, or resistive outputs, which are widely accepted by building automation systems. However, compatibility depends on the specific controller's input requirements. It is advisable to verify the sensor's output type and range against the controller's specifications. Belimo also offers sensors with communication protocols like Modbus for direct digital integration. Always consult the datasheet for exact compatibility.

What enclosure ratings are available for Belimo actuators?

Belimo actuators are available with different enclosure ratings to suit various environments. Common ratings include NEMA 2 / IP54, which provides protection against dust and splashing water, and IP20, which is suitable for dry, indoor locations. Some models may have higher ratings for outdoor or washdown applications. The enclosure rating should be selected based on the installation environment and any applicable codes. Refer to the product datasheet for specific ratings.

Can Belimo actuators be mounted in any orientation?

Belimo actuators can generally be mounted in any orientation, but some restrictions may apply for spring return models to ensure proper spring operation. It is recommended to follow the installation instructions provided with the actuator. For damper actuators, the mounting orientation may affect the spring return direction and the actuator's ability to drive the damper to the fail-safe position. Always check the installation manual for specific guidelines.