AB-QM Pressure Independent Control Valves (PICV) DN15 - DN250

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Danfoss AB-QM family

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 10% or 20% to 100% scale. Simply setting the design flow replaces traditional commissioning processes, gives a much more accurate control and avoids Kv calculations for system designers.

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When equipped with a Danfoss actuator, PICVs 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

New: AB-QM 4.0

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

Documents

Documents
Type Name Language Valid for Updated Download File type
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Czech Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Slovenian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Korean Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Chinese (CN) Multiple 27 May, 2024 3.8 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Slovak Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Swedish Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Croatian Multiple 27 May, 2024 3.6 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Romanian, Moldavian, Moldovan Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Ukrainian Ukraine 24 Feb, 2023 4.1 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) German Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) French Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Portuguese Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Serbian (RS) Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Estonian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Danish Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Italian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Lithuanian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Norwegian Bokmål Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Turkish Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) English Multiple 09 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Bulgarian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Finnish Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Dutch, Flemish Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Latvian Multiple 27 May, 2024 3.7 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Spanish, Castilian Multiple 17 Jul, 2024 9.1 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Polish Multiple 27 May, 2024 3.8 MB .pdf
Data sheet AB-QM 4.0 / AB-QM Pressure Independent Control Valves (PICV) Hungarian Multiple 27 May, 2024 3.7 MB .pdf
Brochure AB-QM 4.0 Introduction leaflet Romanian, Moldavian, Moldovan Romania 31 Aug, 2020 1.2 MB .pdf
Brochure AB-QM 4.0 Introduction leaflet Hungarian Hungary 04 Nov, 2020 443.7 KB .pdf
Brochure AB-QM 4.0 Introduction leaflet Polish Poland 01 Jul, 2020 701.7 KB .pdf
Brochure AB-QM 4.0 Introduction leaflet German Multiple 15 Oct, 2019 390.5 KB .pdf
Brochure AB-QM 4.0 Product leaflet French France 11 Sep, 2020 1.6 MB .pdf
Brochure AB-QM 4.0 Product leaflet Slovak Slovakia 26 Mar, 2021 624.5 KB .pdf
Brochure AB-QM 4.0 Product leaflet English Multiple 07 Nov, 2022 680.9 KB .pdf
Brochure AB-QM 4.0 Product leaflet Dutch, Flemish Netherlands 25 Jun, 2020 465.1 KB .pdf
Brochure AB-QM 4.0 Product leaflet German Germany 15 Apr, 2020 489.0 KB .pdf
Brochure AB-QM Actuator Selection Infographic - UK English United Kingdom 15 Jan, 2021 8.6 MB .pdf
Application guide Application guide Italian Italy 07 Mar, 2021 10.1 MB .pdf
Application guide Application leaflet Lithuanian Lithuania 18 May, 2021 19.0 MB .pdf
Brochure Energy saving solutions for renovation of heating and cooling systems Polish Multiple 19 Feb, 2019 5.9 MB .pdf
Brochure Energy saving solutions for renovation of heating and cooling systems Hungarian Hungary 01 Sep, 2014 6.4 MB .pdf
Brochure Energy saving solutions for renovation of heating and cooling systems English Multiple 10 Sep, 2014 5.9 MB .pdf
Brochure Energy saving solutions for renovation of heating and cooling systems Romanian, Moldavian, Moldovan Romania 01 Sep, 2014 6.4 MB .pdf
Brochure Hotel application brochure English Multiple 03 Sep, 2014 654.7 KB .pdf
Brochure Hotel application brochure Spanish, Castilian Spain 12 May, 2015 10.8 MB .pdf
Application guide HVAC Application guide English Multiple 26 Oct, 2020 19.4 MB .pdf
Application guide HVAC Application guide Spanish, Castilian Spain 02 Feb, 2022 8.7 MB .pdf
Application guide HVAC Application guide Latvian Latvia 21 Apr, 2021 20.2 MB .pdf
Application guide HVAC Application guide Czech Czech Republic 18 Nov, 2014 7.3 MB .pdf
Application guide HVAC Application guide Polish Poland 14 Jun, 2021 11.3 MB .pdf
Application guide HVAC Application guide 2021 Hungarian Hungary 21 Sep, 2021 11.7 MB .pdf
Brochure Infographic - Actuator selection for AB-QM PICVs Czech Czech Republic 18 Feb, 2021 3.4 MB .pdf
Brochure Infographic - Actuator selection for AB-QM PICVs Polish Poland 09 Jun, 2021 2.3 MB .pdf
Brochure Infographic - Actuator selection for AB-QM PICVs English Multiple 17 Sep, 2024 3.4 MB .pdf
Brochure Infographic - Actuator selection for AB-QM PICVs Ukrainian Ukraine 15 Aug, 2023 2.1 MB .pdf
Brochure Infographic - Actuator selection for PICVs Dutch, Flemish Netherlands 05 Nov, 2024 2.6 MB .pdf
Brochure Infographic - Actuators for AB-QM PICVs German Multiple 09 Mar, 2023 7.0 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Italian Italy 15 Nov, 2022 628.4 KB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Polish Poland 21 Apr, 2022 5.5 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM German Multiple 06 Mar, 2023 6.5 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Serbian (RS) Serbia 30 Aug, 2021 9.0 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Dutch, Flemish Netherlands 02 Jun, 2023 4.3 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Czech Czech Republic 18 Feb, 2021 5.3 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM Ukrainian Ukraine 11 Aug, 2023 1.3 MB .pdf
Brochure Infographic AB-QM 4.0 compared to AB-QM English Multiple 07 Nov, 2022 2.3 MB .pdf
Brochure Infographic How AB-QM 4.0 redefines the value of PICVs French Multiple 20 Oct, 2020 2.1 MB .pdf
Brochure Interactive actuator selection guide for Danfoss AB-QM valves Finnish Finland 20 Aug, 2024 2.6 MB .pdf
Case story NovoCon - outstanding HVAC flexibility after office building renovation English Multiple 28 Sep, 2020 960.1 KB .pdf
Application guide Planner Manual Hydraulic German Multiple 01 Apr, 2021 16.5 MB .pdf
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Software

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Our advanced Danfoss SET 365 3D design software will help you to design and calculate HVAC systems with Danfoss products. A 1-year subscription is FREE available for students, designers and other interested professionals.

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AB-QM selection tool

New AB-QM selection tool

You can now easy find the right size and/or pre-setting of your AB-QM valves using our new AB-QM selection tool. Try it out here!

Try the tool

Case stories

  • if (isSmallPicture) { ; } else if (isBigColumns) { } else { }
    4* resort increases guest ratings and saves on heat pump energy costs

    Building: Hotel/resort 
    Application: Heat pump system for comfort cooling via fan coil units 
    Challenge: Increase guest comfort and save on energy costs 
    Solution: The hydronic HVAC system for cooling was equipped with AB-QM 4.0 PICV valves for dynamic hydronic balancing and control via TWA-Q thermal actuators 

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    Solution: Digital NovoCon S actuator combined with AB-QM 4.0 PICVs and ChangeOver6 Energy. The combination balances the system hydronically, allow remote access via a BMS and provides actual energy consumption data per climate panel during both heating and cooling operation.

  • if (isSmallPicture) { ; } else if (isBigColumns) { } else { }
    Outstanding HVAC flexibility after high-end office building renovation

    Building: Office
    Application: Hydronic balancing and remote control of 4-pipe heating/cooling change-over system
    Challenge: Ensure a flexible to use HVAC system with DGNB sustainability certification
    Solution: Digital NovoCon actuator combined with AB-QM control valves and NovoCon CO6 combined with ChangeOver6 as a combination balance the system hydronically, allow remote access via a BMS and control the room temperatures during both heating and cooling operation.

  • if (isSmallPicture) { Danfoss contributes to smart HVAC control solution for I-tower at WTC Amsterdam; } else if (isBigColumns) { Danfoss contributes to smart HVAC control solution for I-tower at WTC Amsterdam } else { Danfoss contributes to smart HVAC control solution for I-tower at WTC Amsterdam }
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    Application: Climate panels with a four-pipe change-over system for Heating and Cooling
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  • if (isSmallPicture) { Katowice business centre, Poland; } else if (isBigColumns) { Katowice business centre, Poland } else { Katowice business centre, Poland }
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Tender texts

The pressure independent balancing and control valve 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