Belimo Duct Sensors (T/RH)
Applications
Belimo offers a wide range of air duct sensors covering all standard measurement values: temperature, humidity, dew point, CO₂, VOC’s, pressure and frost detection.
Providing the Reliability, You Know and Expect
Belimo offers a line of duct sensors covering measurement values for temperature, humidity, enthalpy, dew point, CO₂, VOC’s, pressure, and low temperature limit detection backed with UL certification and a 5-year warranty.
Accurate Reading
Belimo duct sensors offer a snap-on NEMA 4X, IP 65 enclosure for easy installation and commissioning, field selectable ranges, high accuracy and reliability, self-calibration features, and mounted accessories are included.
Specification
Measured values: Temperature, Frost, Safety temperature, Humidity, Condensation, CO₂, VOC, Differential pressure, Volumetric flow
Output signal: 0…5 V, 0…10 V, 4…20 mA, Switch, Modbus, BACnet, Pt100, Pt1000, Ni1000, Ni1000TK5000, NTC10k (10k2), NTC10k Pre (10k3), NTC10k Carel, NTC20k
Measuring range temperature (°C): -50…150 °C, -50…160 °C, -50…250 °C, -40…80 °C, -35…70 °C, -35…100 °C, -10…15 °C, 0…15 °C, 0…50 °C, 30…90 °C, 50…80 °C, 70…130 °C
Measuring range pressure (Pa): -150…250 Pa, -100…2500 Pa, 0…7000 Pa, 20…300 Pa, 50…500 Pa, 200…1000 Pa, 500…2500 Pa, 1000…5000 Pa
Mounting type: Average, Single point, Immersion
Probe length: 50 mm, 100 mm, 140 mm, 150 mm, 156 mm, 180 mm, 200 mm, 270 mm, 300 mm, 450 mm, 3 m, 6 m
Additional features: Manual reset, Auto reset, Auto or manual reset, Internal sensor, External sensor, Auto-Zero, 2 measuring systems
Display type: LCD, LED
Consulting Engineers

Your analytical skillset makes you an invaluable asset to your organisation. Though your job is to design systems and operating sequences that meet energy codes to make facilities run more efficiently, you constantly find yourself collecting information and analysing data when it could be spent looking for new and innovative ways to save energy and improve building performance. Belimo ball valves provide:
- Models available with tight close-off up to 1000 psi to ensure dependable operation
- Spring return, non fail-safe, and electronic fail-safe actuator to drive the valve open or closed during power failure to meet sequence requirements
- NEMA 4 actuator options for harsh outdoor applications
- High Kvs full port ball valves for isolation applications
- Customer focused organisation with support documentation requirements for plans and specifications
Contractors & Distributors

- Easy selection, installation, and hassle-free service
- Models with tight close-off up to 1400 kPa to ensure dependable operation
- Range of media temperature ratings suited for steam, chilled and hot water applications
- Assembled with rotary actuators offering easy field assembly and installation saving you time
- Fast delivery with extensive support
Building Owners

Building expansion and tenant improvements are a constant challenge to your facility department and the value of your property. You are having difficulty keeping clients comfortable, identifying ways to optimise your HVAC system, and preserving capital budgets. Belimo ball valves can offer:
- High performance VB series ANSI Class I50 or 300 carbon steel bodies which are ideal for aggressive applications
- 0% leakage or ANSI Class VI rating increasing plant Delta T efficiency and building comfort
- Serviceable trim components on VS and VSS series valves reducing replacement cost
- High Kvs ball valves with minimal pressure drop, which are ideal for isolation application where pumping costs are high
- NEMA 4 actuator options for harsh outdoor applications which assure long service life
Facility Managers

Higher energy prices combined with costly building inefficiencies are making your job more and more difficult to perform. While you should be looking for new and innovative ways to reduce energy consumption and improve facility performance, you’re simply too busy dealing with employees, troubleshooting technical issues, and trying to combat costly problems with more money. Belimo ball valves can provide:
- Excellent control stability maintaining occupant comfort level
- Better control to prevent “hunting” of the control loop, increasing life span of actuator and valve
- Models available with tight close-off up to 1400 kPa to ensure dependable operation
- Easy selection, installation, and service for improvement projects or retrofits
- Fast delivery and online technical support
ESCO

You are tasked with communicating to organisations how they can save energy and improve performance — but key opportunities are passing you by. Why? Most of your time is spent searching for new product innovations that are backed by proven and reliable energy savings data. Belimo ball valves offer:
- ANSI Class VI or 0% leakage rating offering increased plant Delta T efficiency and building comfort
- Tight close-off up to 1400 kPa to provide dependable performance
- Actuator to utilise full control signal for maximum resolution and precise control
- High Kvs ball valves with minimal pressure drop. These are ideal for isolation application where pumping costs are high
- Better control to prevent “hunting” of the control loop, increasing life span of actuator and valve
Commissioning Agents / Balancing Contractors

The responsibilities of your job are complex. Between managing and reviewing projects, along with balancing and commissioning systems, you’ve got a lot on your plate. What you’re looking for is an innovative product with proven energy savings data that meets your facility’s specifications without the hassle of a complex installation and/or costly maintenance requirements. Belimo ball valves offer:
- Manual override function to provide easy troubleshooting capabilities during start-up and commissioning
- MFT models with field selectable control and feedback signal, and running time to match design sequences and controller requirements
- Trending with Multi-Function Technology (MFT) models for system diagnosis
- Self-cleaning ball valve technology to provide superior clog resistance and ensure flow is maintained in heating and cooling systems
Related products
Belimo Butterfly Valves
Applications
The Butterfly valve series is available as Wafer- and Lug-Type in DN 25 - DN 700. It meets the requirements of all HVAC applications requiring zero leakage for 2-way and 3-way applications.
The most intelligent butterfly valve on the market
Butterfly valve assemblies are available in sizes from 50 to 1200mm for 2-way application designed for piping systems requiring zero leakage. The assemblies are available with IP54 or IP66/ 67 housing and offer a range of Kvs values to provide an economic control valve solution for large high flow applications.
Game-changing butterfly control valves from DN 100 to DN 150
Say goodbye to high energy consumption, inefficiency, discomfort, and sky-high costs caused by outdated valves. We've revolutionized the industry by rendering these problems, along with the hassle of finding compatible retrofit solutions, a thing of the past. Thanks to our new butterfly control valves, ranging from DN 100 to DN 150, all these challenges have been solved for you. Join us on the journey towards sustainable and cost-effective HVAC solutions.
Learn more about our new control butterfly valves at the product launch event:
Key benefits of butterfly control valves from Belimo
The Belimo butterfly control valves are a smart, energy-efficient, and reliable solution for high-flow applications in the HVAC industry. They are perfectly suited for heating, chiller, and cooling tower applications, changeover systems, control applications for large ventilation systems, and bypass applications. The benefits of these new products include:
- JR and PR Actuator with high-performance chip allows smooth and efficient operation and ensures that the butterfly control valve operates with high precision
- Tight shut off leads to energy savings in HVAC applications as well as money savings
- Simple installation, commissioning, and maintenance with the Belimo Assistant App
- Access to diagnostic options via the App
- Application parameters option such as linear or equal percentage control characteristic is available, communication protocol is also available for BACnet MS/TP, Modbus RTU and Belimo MP-BUS
- Up to two temperature sensors can be connected to create an optimised system
- The product stands out for its quality, flexibility, reliability and durability
8 reasons for using Belimo butterfly valves
1. Flexible utilisation options
2. Absolute seal integrity
3. Energy-saving design
4. Reduced weight and low installation height
5. Transparent communication
6. Seamless integration of sensors
7. High operating safety
8. Fit for reliable control tasks
Only the best is good enough
Our commitment to continuous improvement remains unwavering as we methodically enhance our products on the basis of the latest research, the expertise of experienced engineers and customer feedback. Innovation lies at the heart of our quality guarantee, driving us to create products that meet and surpass our customers' expectations. This was also the case when we developed the butterfly control valve range from DN 100 to DN 300 together with the JR and PR actuator.
The new butterfly control valves are designed with the highest quality materials to ensure durability and reliability. In over one million test cycles, we have thoroughly tested the products under real-life conditions and in our laboratories. Robustness, reliability, and water resistance, among other things, have been successfully tested, and third parties conducted all relevant certification tests. A 5-year warranty backs Belimo products.
Belimo butterfly control valve at a glance
- Our successful product range has been further enhanced with the launch of the butterfly control valves from DN 100 to DN 150. This addition allows us to cover a wide range of applications, up to DN 300. More to come soon up to DN 450.
- Also, don't forget to check out our full range of current butterfly valves, reaching from the small size of DN 25 up to the enormous size of DN 1200.
Specification
Valve size (mm): 25 mm, 32 mm, 40 mm, 50 mm, 65 mm, 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, 1000 mm, 1200 mm
kvs range (kvs): 15...40 kvs, 41...170 kvs, 171...1000 kvs, 1001...10000 kvs, 10001...42800 kvs, > 42800 kvs
Kvmax range: 41...170 Kvmax, 171...1000 Kvmax, 1001...10000 Kvmax, 10001...42800 Kvmax
End connection: Lug types, Wafer types
Close-off pressure: 1000 kPa,1200 kPa, 2200 kPa
PN: 6 / 10 / 16 PN , 10 / 16 PN , 16 PN , 25 PN
Belimo Fire Damper Actuators
Applications
Specifically designed safety actuators for the motorisation of fire dampers provide best protection against the spread of fire and smoke through the air ducts.
Technology that Saves Lives
Belimo fire and smoke damper actuators are designed for operation in smoke and combination fire and smoke dampers in ventilation and air-conditioning systems with a torque range from 2 Nm to 40 Nm @ 177°C. For maximum safety in all situations, the fire and smoke actuators meet all codes for commercial buildings in the U.S., pass UL 555 and UL 555S at 177ºC and are tested for 30,000 open-closed cycles with approved dampers. Belimo fire and smoke damper actuators exceed UL’s requirement of 20,000 cycles at damper static load.
Safety in Buildings
Belimo fire and smoke damper actuators have an extensive torque range specifically designed for operation with fire, smoke, and combination fire and smoke dampers in ventilation and air-conditioning systems. As an integral part of the life safety system, Belimo fire and smoke actuators provide high performance, low power consumption, and are compliant with Life Safety Codes and Standards.
Specification
Torque (Nm): 2 Nm, 3.5 Nm, 4 Nm, 8 Nm, 9 Nm, 18 Nm, 20 Nm
Voltage AC/DC: 120 V, 230 V, 24 V
Control type: Open/close, Modulating
Electrical connection: Cable, Cable with connector plug,Leads
Thermoelectric tripping device: BAT (72°C)
Belimo Gas Monitors (Air) | Gas monitoring devices | Multi-gas monitor
Applications
Belimo’s gas monitor devices offer an intelligent peer-to-peer communication protocol that gives users unparalleled flexibility to configure and install a complete ventilation control system with only one monitor or dozens operating in multiple ventilation zones.
Accurate and reliable gas monitoring - Indoor parking garages
Exhaust ventilation controlled by Belimo's gas monitors provides a safe, clean environment and helps to keep energy costs in line. Using carbon monoxide and nitrogen dioxide gas monitors in parking garages offers accurate and reliable exhaust ventilation control where diesel-powered vehicles may also be present. The modular design provides a combined unit with carbon monoxide and nitrogen dioxide sensors within one device, helping to reduce energy costs by measuring emissions and only exhaust-heated or air-conditioned air when needed.
Belimo Globe Valves
Applications
The Globe valve series are available in DN 15 to DN 250 with both threaded and flanged end fittings to meet the requirements of various applications, incl. high pressures and high temperatures.
Greater Force and Flexibility
The globe valve series are available in sizes from DN15 - 150 which fulfil the requirements of PN16 and PN25 applications. Utilising either bronze or stainless steel trim and fitted with either spring return, non-spring return, or electronic fail-safe actuators, globe valves are the perfect fit for HVAC equipment such as air handling units, terminal equipment, and hydronic systems with primary and secondary loops of water or steam service.
More Strength for Higher Pressure Demands
The Belimo globe valve actuators are designed to withstand the rigorous demands of many HVAC applications. With its innovative quick connect coupler, the globe valve actuator can be retrofitted and installed and adapted in no time.
Specification
Pattern: 2-way, 3-way
Valve operations mode: Diverting, Mixing, Mixing/Diverting
PN: 16, 25
kvs range (kvs): 1.1...3.0 kvs, 3.1...6.5 kvs, 6.6...14 kvs, 15...40 kvs, 41...170 kvs, 171...1000 kvs
Valve size (mm): 15 mm, 20 mm, 25 mm, 32 mm, 40 mm, 50 mm, 65 mm, 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm
Pipe connection: Flange, Internal thread
Belimo Non Fail-Safe Damper Actuators
Applications
Belimo rotary actuators without fail-safe can handle a magnitude of HVAC applications. Available in a wide range of nominal voltages and torques.
Versatile in Performance and Function
Belimo non fail-safe damper actuators are designed for use in a wide variety of HVAC damper applications. With our comprehensive torque range from 2 Nm to 160 Nm and the ability to direct mount on standard damper shafts or jackshafts, these solutions are ideal for controlling dampers found in AHU, PAU, VAV terminal units, fan coil units, and unit ventilators used in hospitals, schools/universities, and data centres.
Accuracy and Controllability
The Belimo non fail-safe return damper actuators use brushless DC motor technology, which is controlled by an Application Specific Integrated Circuit (ASIC) guaranteeing minimum torque over the entire operating range with no loss in performance due to temperature, supply voltage or speed.
Specification
Torque: 1 Nm, 2 Nm, 4 Nm, 5 Nm, 8 Nm, 10 Nm, 16 Nm, 20 Nm, 40 Nm, 160 Nm
Force: 50 N, 100 N, 150 N
Voltage AC/DC: 120 V, 230 V, 24 V, 48 V, 72 V
Control type: Open/close, 3-point, Modulating, Communicative, Hybrid (communicative / analogue)
Running time: 2.5...19 s, 20...49 s, 50...79 s, 80...99 s, 100...150 s
Mechanical interface: Form fit, Universal shaft clamp, Universal shaft clamp reversible
Auxiliary switches: 1x SPDT, 2x SPDT
Electrical connection: Cable, Connector plug, Terminals
Protection category: IP20, IP54, IP66/67
Belimo Outdoor / Protected Damper Actuators
Applications
Belimo IP66/67 NEMA 4X actuators are particularly suitable for utilisation in outdoor applications and are protected against UV radiation, rain/snow, dirt, dust, air humidity.
Reliability and Performance
Belimo IP66 / 67 housing design combined with extensive independent testing provides a complete, unmatched protection in extreme environments. The housings are weather-tight and corrosion resistant for the harshest indoor and outdoor conditions with UV protection. For high humidity or low temperature (-40°C) applications a heater option is available. These actuators are ideal for rooftop applications, indoor swimming pools, wood drying kilns, agriculture and food industries.
Belimo's unique IP66 / 67 housing incorporates its damper actuator and valve product lines. The housing design provides complete, unmatched protection in extreme environments.
Specification
Fail-safe function: Non-fail-safe, Fail-safe
Torque: 6 Nm, 10 Nm, 16 Nm, 20 Nm, 40 Nm, 160 Nm
Voltage AC/DC: 120 V, 230 V, 24 V, 48 V, 72 V
Control type: Open/close, 3-point, Modulating, Communicative, Hybrid (communicative / analogue)
Running time: 2.5…19 s, 20…49 s, 50…79 s, 80…99 s, 100…150 s, adjustable
Running time (fail-safe): 4 s, 20 s, 30 s, 35 s
Auxiliary switches: 1x SPDT, 2x SPDT
Electrical connection: Cable: Terminals
Belimo Outdoor Sensors (Air)
Applications
Belimo's outdoor sensors for temperature and humidity have IP65 protection and provide all common active and passive output signals as well as Modbus and BACnet, depending on the version.
Providing the Reliability, You Know and Expect
Outdoor mounted sensors designed to measure the outside temperature for efficient heating/cooling automation.
Efficient Air Quality
Outdoor mounted sensors equipped with a NEMA 4X / IP65 rated enclosure, snap cover and mounting plate for ease of installation are available with passive or active outputs and are compatible to major building automation systems. Combined temperature and humidity sensors with selectable relative humidity, absolute humidity, dew point and enthalpy outputs are available with optional BACnet and Modbus communications. These sensors measure the outdoor air to permit the DDC system to coordinate with actual building conditions ensuring accurate and efficient air quality. All outdoor sensors are UL certified and backed by a 5-year warranty.
Specification
Measured values: Temperature, Humidity, Light
Output signal: 0...5 V, 0...10 V, 4...20 mA, Modbus, BACnet, Pt100, Pt1000, Ni1000, Ni1000TK5000, NTC10k (10k2), NTC10k Pre (10k3), NTC20k
Additional features: Internal sensor, External sensor
Belimo Pipe Sensors (Water)
Applications
Belimo offers immersion and contact sensors. Choose the best mounting option for your temperature, pressure or flow measurements in and on the surface of pipes, boilers and tanks.
Seamless Integration
Belimo offers a line of immersion and surface mounted sensors for temperature, condensation, static pressure, differential pressure and flow for measuring in or on the surface ensuring reliable operation.
Fast Response
Belimo surface mounted sensors incorporate a spring-loaded brass contact and a unique snap-on enclosure design allowing for quick installation, easy commissioning, NEMA 4X / IP65 protection, and UL certification. The brass arched probe surface with a plenum rated cable offers remote installation. Both models ensure fast response and accurate hydronic temperature readings
Specification
Measured values: Temperature, Safety temperature, Condensation, Relative pressure, Differential pressure, Flow
Output signal: 0...5 V, 0...10 V, 4...20 mA, Switch, Modbus, BACnet, Pt100, Pt1000, Ni1000, Ni1000TK5000, NTC10k (10k2), NTC10k Pre (10k3), NTC10k Carel, NTC20k, 2...10 V, MP-Bus, 0.5...10 V
Measuring range temperature (°C): -50...150 °C, -50...160 °C, -50...250 °C, -35...90 °C, -35...100 °C, 30...90 °C, 50...80 °C, 70...130 °C
Measuring range pressure (bar): 0...1 bar, 0...2.5 bar, 0...4 bar, 0...6 bar, 0...10 bar, 0...16 bar, 0...25 bar, 0...5 bar, 0...35 bar
Mounting type: Single point, Immersion, Contact sensor
Probe length: 50 mm, 100 mm, 150 mm, 200 mm, 300 mm, 450 mm
Display type: LCD, LED

