Pressure-independent characterised control valves
Powerful solutions
Pressure-independent control valves ensure precise control of hydronic systems. This improves room comfort and allows for significant energy savings. Automatic, hydronic balancing is also guaranteed under all load conditions. Belimo offers a range of pressure-independent (PI) valves – from the super-compact PI valves PIQCV or PIFLV, and the EPIV, an electronic PI valve, to the Belimo Energy Valve™. The latter two offer true flow measurement. System performance is optimised, documented and proven.
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Application brochure – Room and zone control
(pdf -
4.85 MB)
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Application brochure – Air handling units
(pdf -
8.97 MB)
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3-way mixing circuit with 2-way Energy Valve / EPIV
(pdf -
1.28 MB)
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Technical brochure – Water applications
(pdf -
7.38 MB)
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Brochure – 8 reasons to use pressure-independent control valves
(pdf -
4.27 MB)
HVAC hydronics – the goldmine in building renovation projects.
The smart control of heating, cooling, and ventilation loads has a big impact on the energy efficiency of buildings. A key aspect here is the heating and chilled water circuit, i.e. the hydronics of a building.
Generation
- No energy loss at zero load reduces operating costs.
- Planning reliability as a first step towards better energy efficiency.
Distribution
- Pressure fluctuations in distribution lead to lower power output.
- Making energy flow visible.
Zone
- Demand-driven zone control.
Find out how we can support you in this:
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Brochure – Energy efficiency and comfort in buildings
(pdf -
4.46 MB)
Compact power
Energy-efficient valves for optimum performance
To ensure proper flow in any application, each valve can be pre-set at the factory and customised on-site. Additional balancing is not required. The system works perfectly right from the start. Pressure-independent valves are used when the flow through ventilation units, heating and cooling coils, fan coils, unit fans, VAV after-heating coils and underfloor heating systems must be controlled in an energy-efficient manner.
Product range
Modern hydronics with constant flow
To ensure high overall energy efficiency in buildings, energy-optimised heating and chilling systems are becoming increasingly important.
Always the correct water quantity
Ideal room comfort by ensuring the correct amount of water, even with differential pressure changes and in partial load operation.
Time savings in planning
Reduced planning effort and time savings through simple valve design.
Less installation work
Cost reduction and time savings thanks to the all-in-one solution. No complex hydronic balancing necessary.
Energy efficient
The tight-closing characterised control valve prevents internal leakage in the closed state and thereby waste at zero load.
Flexible
Easy to set maximum flow.
Safe
The self-cleaning effect prevents the control element from jamming and ensures reliable activation of the chilling or heating power.
8 reasons to use pressure-independent control valves
1. Valve sizing made easy
2. Reduced installation work
3. User-friendly commissioning
4. Automatic hydronic balancing
5. Invariably correct quantity of water
6. Trouble-free operation
7. Immediate efficiency enhancement
8. Wide range of control options
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Brochure – 8 reasons to use pressure-independent control valves
(pdf -
4.27 MB)
8 reasons to use 6-way valves
1. One device for everything
2. Transparent, pressure-independent control
3. Simple, time-saving commissioning
4. Safe, precise and no condensation
5. Simple, future-proof integration
6. Reduced energy consumption
7. Excellent control characteristics with minimum effort
8. Air-bubble tight with maximum plant safety
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Brochure – 8 reasons for using 6-way valves
(pdf -
3.36 MB)
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Poster – Electronic pressure-independent 6-way zone valve EPIV
(pdf -
1.05 MB)
Customer-specific products
Custom-made products. Less effort, more profit.
These days, challenges in planning and on the construction site are difficult to solve using standard products, which is why pre-manufactured products are becoming increasingly important. We build the actuator you need – with the cable length, connector plug and parametrisation you specify. On request, we mount the actuator to a valve and create a pre-mounted assembly from pipe parts, sensors, connections and much more.
- Different cable types and lengths with or without a connector plug.
- Product labelling with your customer information (e.g. where the actuator is to be installed in the building).
- Completely prefabricated and tested assembly (e.g. seal integrity) with components of your choice.
- On request with flexible pipelines, with special coatings or insulation.
- We take care of the parametrisation for you (e.g. adjustable running time, switching differential and bus parameters). For HVAC performance devices (e.g. Belimo Energy Valve™), we prepare the complete commissioning for you according to your specifications.
We offer a "complete carefree package" for your application.
- Customer advantages
- Software / Plug-ins
- Success stories
- Awards
General contractors / investors
Your focus is on the profitability of buildings. This not only includes investment costs, but also costs during ongoing operation / servicing. Sustainability and cost transparency are important to you. Belimo pressure-independent characterised control valves offer:
- Tested quality for over 40 years
- Energy-saving thanks to automatic, permanent hydronic balancing
- A high level of room comfort and satisfied building users as a result
- Simple adaptations can be made to changes in performance, thereby also guaranteeing easy building conversion in the future
Consulting engineers
Planning HVAC systems is your core competence. You are constantly on the lookout for new, innovative ways to save energy and improve room climate. You work with the most modern methods and use data from suppliers / manufacturers for your planning. Belimo pressure-independent characterised control valves offer:
- Reduced planning effort and time savings through simple valve design
- Automatic hydronic balancing at every load condition
- Easy adaptations to power changes possible
- Specially coordinated planning aids and documents support day-to-day work
System integrators
Your task is to design building management systems and optimally integrate field devices. Your goal is to reduce complexity and ensure transparency for the continuous optimisation of building technology. Belimo pressure-independent characterised control valves offer:
- Easy selection, installation, and hassle-free service
- Assembled with rotary actuators offering easy on-site mounting and installation saving you time
- Control via BACnet, Modbus, KNX, MP-Bus or analogue signal depending on the actuator
- Energy optimisation through data transparency (EPIV)
Installers / plant engineers
The installation of HVAC building technology is your trade. To carry out your work, you need the right products at the right time on site. Easy mounting and expert customer support allow you to meet your tight schedule. Belimo pressure-independent characterised control valves offer:
- Cost reduction and time savings with an all-in-one solution
- No complex hydronic balancing necessary
- Easy installation in tight spaces
- Fast delivery with extensive support
Building owners
Improvements in comfort and energy consumption as well as simple building expansions and upgrades are a constant challenge for you. Optimising your HVAC system with the least possible effort and low costs is in the main focus. Belimo pressure-independent characterised control valves offer:
- Energy-saving thanks to automatic, permanent hydronic balancing
- Increased room comfort by ensuring the correct amount of water for differential pressure changes and in partial load operation
- Simple adaptations can be made to changes in performance, thereby also guaranteeing easy building conversion
- System safety guaranteed by optional fail-safe
- Accurate and reproducible flow measurement (EPIV)
Facility managers / Building maintenance
Management, control and operation of buildings and their technical equipment is part of your daily tasks. You seek solutions to ensure room comfort and optimise system operation. You value simple and transparent systems and, if necessary, quick delivery of spare parts and support available at all times. Belimo pressure-independent characterised control valves offer:
- Flow is adjustable and always perfectly balanced
- Reduction of operating costs of pumps and chillers / boilers by increasing the efficiency of the chilling system
- Energy-saving thanks to automatic, permanent hydronic balancing
- Increased room comfort by ensuring the correct
- amount of water for differential pressure changes and in partial load operation
- Accurate and reproducible flow measurement (EPIV)
- No unwanted power output thanks to air-bubble tight valves
Belimo Assistant 2
Unlock the full potential of your Belimo devices
Belimo Assistant 2 enables wired and wireless setup, on-site operation, and troubleshooting of Belimo damper actuators, control valves, sensors, and meters with smartphones, tablets, and PCs.
Key features:
- Check and modify device setting parameters
- Display identification data: Device type, position, designation, serial number, bus address
- Addressing (MP-Bus, BACnet, Modbus, TCP/IP)
- "Setup": Guided parameter setup for your device.
- "Copy/Paste Configuration": Replicate settings for the same device types
- "Live trend": Perform local override and live trending with the easy-share function
- "Health": Monitor device operation KPIs. E.g. Power supply, Bus state, Sensor state, etc.
- "Reports": Retrieve digital reports of your device with the easy-share function. E.g. Calibration certificate, Commissioning report
- "Export Configuration": Create a logfile with the easy-share function
- In-app language adjustment (EN/DE/FR/IT/ES/CN/RU)
- Platform-independent for Android, Apple iOS, and Windows.
Accessories:
- ZTH EU (USB/MP converter)
- ZIP-BT-NFC (Bluetooth/NFC converter)
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App Store
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Google Play
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Belimo Assistant 2 (Windows Installer Version 6.10.0)
(msi -
84.42 MB)
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Quick Guide – Belimo Assistant 2
(pdf -
1.89 MB)
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Flyer – Belimo Assistant 2
(pdf -
1.66 MB)
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Frequently asked questions
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How-To Videos
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Learn more about Belimo Assistant 2
Belimo RetroFIT+ App
The Belimo RetroFIT+ App offers you a quick and easy way to find the perfect replacement for your obsolete or defective actuators, valves and sensors from Belimo and a number of other equipment sources.
Whether it be for ventilation or water applications, for modernisation or for replacing your system – our app will quickly lead you to the ideal Belimo product which best fulfils your requirements while at the same time offering you maximum quality and performance.
The RetroFIT+ App makes it easy to create and plan Belimo retrofit projects.
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How to find a replacement with Belimo RetroFIT+ App.
Service Tool ZTH EU
The ZTH EU service tool simplifies diagnosis, operational checking and setting for HVAC performance devices. Connected directly to a parametrisable or communicative actuator from Belimo, current values can be read on site and reset immediately.
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Download Tool - ZTH EU - Firmware Upgrade
(zip -
2.44 MB)
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Operating manual - ZTH EU Firmware Upgrade
(pdf -
304 KB)
When using the ZTH EU as an interface for the PC-Tool (MFT-P), the corresponding USB driver is installed when the PC-Tool software is installed. The driver can also be downloaded here and installed separately.
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ZTH EU - USB MP driver
(zip -
2.17 MB)
BIM plug-in for Autodesk Revit
3D data models with technical information from Autodesk Revit via the BIM plug-in
This plug-in allows you to select Belimo actuators, valves and sensors from one database and then add them to the building information modelling project with their technical data via drag & drop. All BIM users thus have access to all data in a structured and classified form in the Revit MEP format.
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Plugin 3Dfindit: Versions Revit 2021 - Revit 2025
(zip -
404.75 MB)
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Flyer – Efficient planning with BIM
(pdf -
1.91 MB)
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The BIM plug-in can only be successfully installed if the Autodesk Revit software is available on the computer.
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Visit the Autodesk page
Awards and recognitions
The Belimo Energy Valve™ has received many technological innovation awards for its low delta T syndrome solution and for creating transparency in the visualisation of product and system performance at the field device level of the system operation. The Belimo Energy Valve™ is unique in the market.