Danfoss AB-QM DN40 PN16 Pressure Independent Control Valves 003Z0770 P26/2

AB-QM DN 40 with test plugs – Pressure-independent balancing and control valve, external thread (003Z0770)

The AB-QM DN 40 is a high-quality, pressure-independent balancing and control valve from Danfoss, specially developed for precise hydraulic balancing in heating, cooling, and air conditioning systems. Thanks to its integrated flow control, the valve ensures a constant volumetric flow – regardless of pressure fluctuations in the system.

With three integrated test plugs, the AB-QM DN 40 allows for simple and reliable measurement of flow and differential pressure. The robust valve housing made of cast iron (EN-GJL-250) and the pressure rating PN 16 make the valve particularly durable and suitable for demanding applications.

Your advantages at a glance

• Pressure-independent balancing and control valve for constant volumetric flow
• DN 40 with external thread for easy installation
• Three test plugs for precise measurement and diagnostic options
• High operational safety at differential pressures up to 600 kPa
• Wide temperature range from -10 °C to +120 °C
• Compatible with Danfoss standard actuators
• Ideal for energy-efficient heating and cooling systems

Typical applications

• Heating systems
• Cooling and air conditioning systems
• Fan coil systems
• Commercial and industrial building automation

Technical data

• Manufacturer: Danfoss
• Article number: 003Z0770
• Valve type: AB-QM
• Valve size: DN 40
• Nominal flow: 7.5 m³/h
• Pressure rating: PN 16
• Max. differential pressure: 600 kPa
• Min. differential pressure: 30 kPa
• Stroke: 10 mm
• Connection type: External thread
• Test plugs: With 3 test plugs
• Valve housing material: Cast iron (EN-GJL-250)
• Medium temperature: -10 °C to +120 °C
• Actuator connection: Danfoss, standard
• EAN: 5710104034058

• Our item number: P26/2
• Condition: new