Danfoss AB-QM Pressure Independent Control Valve

Danfoss AB-QM Pressure Independent Control Valve

The Danfoss AB-QM is a Pressure Independent Control Valve (PICV) for HVAC systems. It combines an integrated differential pressure regulator and flow limitation, making sizing easy and balancing automatic. It delivers consistent flow to terminal units, increases comfort and energy efficiency, and simplifies commissioning

Product Description

Key Features & Benefits

  • 100% Valve Authority

    Unique 100% authority ensures precise control at all flow rates, guaranteeing comfort and maximizing energy savings.

  • Automatic Balancing & Easy Sizing

    Eliminates complex Kv calculations. Simply select based on design flow and set on the 10-100% scale.

  • Perfect Flow Control

    Delivers the exact required flow to each terminal unit, optimizing chiller/boiler efficiency and reducing pump energy.

  • Energy & Cost Savings

    Reduces overall system energy use, minimizes actuator wear (fewer movements), and lowers total cost of ownership.

  • Simplified Commissioning

    Replaces lengthy manual balancing; setting the design flow is the only commissioning step required.

Technical Specifications

Size Range

DN15 – DN250

Key Function

Pressure Independent Balancing & Control Valve (PICV)

Setting Scale

10% or 20% to 100% of max. flow

Actuator Compatibility

Designed for use with Danfoss actuators (e.g., for 2-point or modulating control).

Installation & Control

Terminal Unit Connection

Installed at the inlet of terminal units like FCUs, AHUs, or climate ceilings.

Simple Flow Setting

The design flow is set manually using the adjustment dial on the valve body.

Actuator Integration

An actuator (sold separately) is mounted on top for automatic control via room thermostat or BMS.

Design Software Support

Can be sized and integrated into system designs using the free Danfoss SET 365 software.

Use Cases

Product brochure
User Manual
Scroll to Top