Danfoss Valves

Pressure Independent Control Valves

Improves System Efficiency by Up to 50% by Eliminating Overflows and Increasing ΔT

AB-QM™ is a Danfoss pressure independent control valve with a built-in, integrated differential pressure regulator. When equipped with a perfectly matched Danfoss electric actuator, it increases energy efficiency & room temperature control, improving indoor climate conditions.

Sizing and Selecting Conventional Control Valves Is Complicated

Control valves paired with fixed orifice flow balancing devices have tormented the HVAC industry for decades by being too complex to correctly size, and too difficult to balance and providing limited control, resulting in overall system inefficiency.

Systems with variable loads need reliable valves that don’t require a constant balance to properly regulate the flow to the coil as the water pressure changes.

Sizing and Selecting Conventional Control Valves Is Complicated

Control valves paired with fixed orifice flow balancing devices have tormented the HVAC industry for decades by being too complex to correctly size, and too difficult to balance and providing limited control, resulting in overall system inefficiency.

Systems with variable loads need reliable valves that don’t require a constant balance to properly regulate the flow to the coil as the water pressure changes.

Danfoss AB-QM™ Puts Your System Back Into Proper Balance

Danfoss developed the AB-QM pressure independent control valve to solve this common issue.

The integral pressure regulating device assures consistent flow, regardless of changes in system pressure. The ability to set the flow on the valve results in the installation of a single component (no balancing valve needed) and allows for easy flow changes after installation.

Third-party verified flow control accuracy of +/-5% improves system efficiency in the range of 20%-50% by eliminating overflows and increasing delta-T.

Danfoss AB-QMs provide improved comfort and reduced energy for facility managers/owners, easier installation with fewer components for contractors, a properly balanced system for balancing contractors and optional BMS integration and data logging for commissioning agents

Danfoss AB-QM™ Puts Your System Back Into Proper Balance

Danfoss developed the AB-QM pressure independent control valve to solve this common issue.

The integral pressure regulating device assures consistent flow, regardless of changes in system pressure. The ability to set the flow on the valve results in the installation of a single component (no balancing valve needed) and allows for easy flow changes after installation.

Third-party verified flow control accuracy of +/-5% improves system efficiency in the range of 20%-50% by eliminating overflows and increasing delta-T.

Danfoss AB-QMs provide improved comfort and reduced energy for facility managers/owners, easier installation with fewer components for contractors, a properly balanced system for balancing contractors and optional BMS integration and data logging for commissioning agents

Product Highlights

Available in sizes that range from ½” up to 10” with integral actuator

100% valve authority, eliminating the need for sizing calculations

10-15% energy savings

Optimal balance and controls

Energy source for self-contained steam humidifiers can be either gas or electric

HC6000 and GGH series can be provided with Ionic Beds that collect minerals in water extending the life of the equipment

Danfoss Literature

Download the Danfoss brochure and learn all the details about the Danfoss AB-QM™ Pressure Independent Control Valves (PICV’s) that provide perfect flow control & hydronic balance, increasing energy savings by 20-50%.