Description
The Danfoss 003N0108 is a 3/4″ AVTA20 series self-acting thermostatic regulating valve engineered for reliable, automatic temperature control in hydronic heating, cooling, and industrial process systems. Requiring no external power source, the AVTA20 uses a liquid-filled capillary sensing element to modulate flow in direct response to sensed temperature — delivering precise, energy-efficient regulation without the need for electrical controls or actuators.
Key Features
- Self-acting thermostatic operation — no external power required
- 3/4″ connection size for straightforward integration into standard piping systems
- Wide temperature control range: 10–80°C (50–176°F)
- 2.3-metre capillary tube for flexible remote sensor placement
- AVTA20 series design built for durability in demanding HVAC and process applications
- Modulates flow automatically to maintain set-point temperature
- Compact, robust construction from Danfoss — a globally trusted controls manufacturer
Typical Applications
- Hydronic heating and district heating systems
- Heat exchanger and boiler temperature regulation
- Industrial process cooling and heating circuits
- Domestic hot water temperature control
- Solar thermal and heat recovery systems
Specifications
- Brand: Danfoss
- Model: AVTA20
- SKU / Part Number: 003N0108
- Connection Size: 3/4″
- Temperature Range: 10–80°C (50–176°F)
- Capillary Length: 2.3 m
- Actuation Type: Self-acting (liquid-filled capillary)
Order the Danfoss 003N0108 AVTA20 from Jackson Systems and benefit from fast shipping and expert HVAC support.







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