Heating support for AB-QM™

AB-QM™ is a pressure independent balancing control valve (PIBCV or PICV) that controls hydronic system flow, to match the load, continuously balancing the system, under pressure changes. The three-in-one design provides:

  • control
  • balance
  • flow limitation

The unique design incorporates a pressure independent control & a differential pressure regulator, that instantly absorbs changing building pressures, constantly balancing, & establishing a high flow limitation through the valve. 

AB-QM™ valves can be used in a variety of heating and cooling applications, to help balance and optimize the hydronic system, but it's typically found in:

  • Hot / cold water coils
  • Variable air volume units (VAV)
  • Sensible-cooling terminal units
  • Fan coil units
  • Air handling units (AHU)

AB-QM™ is one of the simplest valves to set & size, as the valve is selected based on flow requirements & piping size, eliminating the need for time consuming Cv calculations & complicated algorithms.

Visit our handy Quick Select Guide, that allows you to quickly find the perfect valve and actuator combination, based on configurable control input options.


  • AB-QM™ Valves
    AB-QM™ Valves

    Simple Affordable Comfort - Pressure independent control excellence from the global market leader for over 30 years. Discover how Danfoss AB-QM™ Pressure independent control valves (PICVs) can improve system efficiency by eliminating overflows and increasing ΔT.

    Danfoss offers a complete range of innovative solutions - 1/2" to 10", to meet your HVAC system's needs for optimal flow control.

  • Danfoss digital HVAC actuator NovoCon
    NovoCon® S Digital Actuator

    With NovoCon® S Danfoss revolutionizes the way hydronic balancing and HVAC control work together. The first of its kind digital HVAC actuators are directly connected with a Building Management System (BMS). This enables System Integrators to design state-of-art, Internet of Things (IoT) solutions.

Contact Us

Phone: 1-888-DANFOSS (326-3677) - choose option #3 for heating

  • Technical support: heating.ts.hydronic.na@danfoss.com
  • Customer service: heating.cs.na@danfoss.com

Find your local rep to buy Danfoss

Or visit our Heating sales and service contacts page