Danfoss AVTB DN 15 is a direct-acting thermostatic temperature controller designed for controlling water temperature in hot water storage tanks, heat exchangers, oil preheaters and similar equipment. The valve is fitted with a thermostatic head with a capillary sensor (range 20–60 °C) and closes as the temperature rises. The version with G ¾ A external thread ensures easy installation in standard pipework systems. Compact dimensions and a durable brass construction make this valve suitable for applications in both industrial and building services installations.

Features

• Direct-acting thermostatic operation – requires no external power supply or control system
• Closes as the medium temperature rises
• Setting range 20–60 °C with continuously adjustable closing temperature by means of a lever (scale 1–5)
• Maximum sensor temperature 90 °C
• Nominal flow coefficient kVS 1.9 m³/h
• Nominal pressure PN 16, maximum differential pressure 10 bar
• Connection with G ¾ A external thread (ISO 228/1)
• Valve body made of dezincification-resistant brass (BS 2872/CZ132)
• Supplied complete with small sensor Ø 9.5 × 180 mm with 2 m capillary tube
• Installation in the return line – the sensor must be positioned at a point with a higher temperature than the valve body
• Option to add an insulating disc (003N4022) for control stabilisation