Danfoss AB-QM was the first of its kind control valve for HVAC heating and cooling applications. It is a control valve with automatic flow limitation and built-in differential pressure control functioning over the control valve. The result of this concept is a high performing control valve with a – still - unique valve authority of 100%. The design flow can easily be set to the needed amount by using a 20-100% scale. Simply setting the design flow replaces traditional commissioning processes, gives a much more accurate control and avoids Kv calculations for system designers.

When equipped with a Danfoss actuator, PIBCV's increase the energy efficiency and improve the indoor climate. The AB-QM is mainly used for air handling units, climate ceilings, fan-coil units and other terminal units in HVAC heating and cooling systems.

Features and benefits

Easy setting and sizing

Selecting the right AB-QM is much less complicated than sizing and selecting conventional control valves. Once the design flow is determined the matching AB-QM can be selected, no additional Kv and authority calculations are required.

100% authority

Having a 100% valve authority increases the control quality and precision, also at low flow requirements. This creates a better comfort in the building, as well as increasing the energy savings.

Perfect control

By providing the right flow at the right time, the AB-QM optimizes chiller and boiler efficiency and reduces pumping costs. In addition, the actuators need to make much less movements, increasing the lifetime value and lowering the Total Cost of Ownership.

AB-QM 4.0: We created PICVs - now we redefine the value

Coming soon: AB-QM 4.0

Get ready for the next level value of your PICV designs.

Documents

Type Name Language Valid for Updated Download File type
Data sheet - AI AB-QM Ukrainian Ukraine 31 Oct, 2018 4.5 MB .pdf
Brochure - AD AB-QM - 1 million reasons to choose the best Swedish Sweden 04 Sep, 2018 3.6 MB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best German Germany 04 Sep, 2018 963.3 KB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best German Multiple 23 Aug, 2018 987.5 KB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best English Multiple 21 Sep, 2018 5.0 MB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best French Switzerland 04 Sep, 2018 2.2 MB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best German Switzerland 04 Sep, 2018 963.3 KB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best Ukrainian Ukraine 23 Aug, 2018 1.1 MB .pdf
Brochure - AD AB-QM - Millions of reasons to choose the best Romanian, Moldavian, Moldovan Romania 04 Sep, 2018 1.3 MB .pdf
Data sheet - AI AB-QM 3TP, Flow Checker (DN 40-250) English Multiple 04 Sep, 2018 402.0 KB .pdf
Brochure - AD AB-QM 4.0 Introduction leaflet English Multiple 11 Mar, 2019 470.2 KB .pdf
Engineering sheet - AL AB-QM calculation Finnish Multiple 04 Sep, 2018 511.2 KB .pdf
Engineering sheet - AL AB-QM calculation English Multiple 04 Sep, 2018 485.3 KB .pdf
Engineering sheet - AL AB-QM calculation Danish Multiple 04 Sep, 2018 451.6 KB .pdf
Data sheet - AI AB-QM, DN 10-250 English Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 German Multiple 30 Oct, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Finnish Multiple 06 Dec, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Serbian (RS) Multiple 20 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Slovenian Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 French Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Swedish Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Latvian Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Estonian Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Bulgarian Multiple 18 Nov, 2018 3.6 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Romanian, Moldavian, Moldovan Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Czech Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Lithuanian Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Turkish Multiple 18 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250 Polish Multiple 14 Feb, 2019 3.8 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Spanish, Castilian Multiple 06 Dec, 2018 3.6 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Dutch, Flemish Multiple 06 Dec, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Hungarian Multiple 06 Dec, 2018 3.6 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Italian Multiple 20 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Croatian Multiple 20 Nov, 2018 3.5 MB .pdf
Data sheet - AI AB-QM, DN 10-250, 3TP Slovak Multiple 20 Nov, 2018 3.1 MB .pdf
Brochure - AD Application of AB-QM in cruise ships: Significant energy savings and optimal passenger comfort English Multiple 04 Sep, 2018 1.8 MB .pdf
Brochure - AD Application of AB-QM in cruise ships: Significant energy savings and optimal passenger comfort Italian Italy 04 Sep, 2018 1.4 MB .pdf
Brochure - AD Energy saving solutions for renovation of heating and cooling systems English Multiple 23 Oct, 2018 5.8 MB .pdf
Brochure - AD Energy saving solutions for renovation of heating and cooling systems Romanian, Moldavian, Moldovan Romania 12 Mar, 2019 6.3 MB .pdf
Brochure - AD Energy saving solutions for renovation of heating and cooling systems Hungarian Hungary 23 Oct, 2018 6.3 MB .pdf
Brochure - AD Energy saving solutions for renovation of heating and cooling systems Polish Multiple 19 Feb, 2019 5.8 MB .pdf
Brochure - AD Hotel application brochure Spanish, Castilian Spain 04 Sep, 2018 10.7 MB .pdf
Brochure - AD Hotel application brochure English Multiple 04 Sep, 2018 642.4 KB .pdf
Application guide - AB HVAC Application guide Romanian, Moldavian, Moldovan Romania 23 Oct, 2018 7.2 MB .pdf
Application guide - AB HVAC Application guide Hungarian Hungary 23 Oct, 2018 7.7 MB .pdf
Application guide - AB HVAC Application guide English Multiple 23 Oct, 2018 7.5 MB .pdf
Application guide - AB HVAC Application guide Czech Czech Republic 23 Oct, 2018 7.2 MB .pdf
Application guide - AB HVAC Application guide Polish Multiple 19 Feb, 2019 10.9 MB .pdf
Brochure - AD Hydronic Balancing & Control product overview Czech Czech Republic 31 Oct, 2018 1.0 MB .pdf
Brochure - AD Hydronic Balancing & Control product overview English United Kingdom 31 Oct, 2018 7.1 MB .pdf
Brochure - AD Hydronic Balancing & Control product overview English Multiple 31 Oct, 2018 1.1 MB .pdf
Brochure - AD Hydronic Balancing & Control product overview German Multiple 23 Oct, 2018 1.1 MB .pdf

Software

Danfoss C.H. software

Danfoss C.H. software

Our advanced Danfoss C.H. software will help you to design and calculate the perfect heating or cooling installation with Danfoss products.

Related products

  • Danfoss TWA-Z & ABM A5 thermal actuators
    Thermal actuators TWA-Z and ABN A5

    TWA-Z and ABN A5 thermal actuators for use with AB-QM balancing and control valves.

  • Danfoss AME435 QM digital gear actuator for modulating control
    Gear actuator AME435 QM

    AME 435 QM actuator for modulating control is used with pressure independent balancing and control valve type AB-QM from DN 40 to DN 100.

Case studies

  • High-end climate solutions in Waldorf Astoria by Hilton, Amsterdam, the Netherlands

    Building: Hotel
    Application: Hydronic balancing and control for radiator heating and fan coil cooling
    Challenge: Establish top level comfort and minimum energy consumption for heating and cooling
    Solution: Fan-coil units for cooling; 8 heating risers and radiators equipped with Danfoss products.

  • HVAC control at Katowice business centre, Poland

    Katowice Business Centre is a modern office building where Danfoss hydronic balancing solutions are used; AB-QM balancing and control valves in combination with revolutionary NovoCon® actuators.

  • Energy comfort in Prime Tower, Zurich, Switzerland

    The Prime Tower in Zurich is a building of many records. With its 126 meters it is the tallest building in Switzerland with 36 floors and 40,000 square meters accommodating mostly offices. And with its more than 6,000 AB-QM valves it is also one of the biggest heating and cooling installations ever designed and installed by Danfoss.

  • Hydronic balancing in SAMBA bank head office, Riyadh, UAE

    At the heart of the new King Abdullah Financial District in Riyadh stands the impressive SAMBA head office. The 40-storey building represents a landmark in sustainable architecture and engineering and forms an attractive work space for the 800 people working in the SAMBA Financial Group head office.

  • Floreasca Park: Danfoss PIBCV solution offers the perfect balance in the greenest office building in Bucharest, Romania

    The award-winning office complex Floreasca Park raises the bar for green office buildings. With 40% savings on the energy bill, Floreasca Park brings substantial savings to the tenants and a green footprint to the building. The new office complex, Floreasca Park in Romania, serves as an excellent example of a sustainable office building according to the international BREEAM rating.

  • Balancing valves in Sky Tower, Wroclaw, Poland

    The tallest building of the EU now resides in Wroclaw in Poland. As a beautiful landmark to modern architecture, high user comfort and sustainable practice, the 212 meter high Sky Tower forms the pleasant setting for thousands of people living and working in the building.

Videos

Tender texts

AB-QM – Pressure Independent Balancing and Control Valve (PIBCV)

The pressure independent balancing and control valve which means that the control characteristic is independent from the available pressure. The precise flow control performance of the AB-QM with a Danfoss actuator provides increased comfort and superior Total Cost of Ownership. The AB-QM ensures and control the required flow on every terminal unit and maintains Hydronic balance in the system.

AB-QM has following features:

  • Flow limitation function
  • Modulating below 1% of set flow, regardless of the setting
  • Authority of 1 at all settings
  • Able to close against 16 bar of differential pressure
  • Linear control characteristic
  • Scale in percentage of flow
  • Control ratio 1:1000
  • Test plugs for pump optimization and flow verification for DN 10-250

Available in the range from DN 10 – 250 from one supplier.

  • Characteristic changed from linear to equal percentage characteristic at all sizes by adjusting actuator settings
  • Lockable setting
  • Starting pressure of 16 kPa for DN 10 – DN 20
  • Starting pressure of 20 kPa for DN 25 – DN 32
  • Starting pressure of 30 kPa for DN 40 – DN 250
  • Leakage rate of no visible leakage for DN 10 - DN 20 in combination with recommended actuator
  • Leakage of 0.05 % of the Qnom for DN 25 - DN 100 in combination with recommended actuator
  • Leakage of 0.01 % of the Qnom for DN 125 - DN 250 in combination with recommended actuator