The Danfoss 003N4006 repair kit is an original service kit designed for the maintenance and restoration of leak-tightness in Danfoss AVTB, FJV and AVD(S)A direct-acting temperature controllers with nominal diameter DN15. The kit contains all sealing elements required for valve overhaul on site, without the need for complete replacement, thereby extending the service life of the valve and reducing operating costs. The use of original Danfoss spare parts guarantees the preservation of the original operating parameters, tightness and control reliability in accordance with the manufacturer’s specifications.

The kit is suitable for valves installed in district heating systems, substations, heat exchanger stations, hot water storage tanks and other applications where Danfoss direct-acting temperature controllers are used for control without the need for an electrical power supply or compressed air.

Features and benefits

• Original Danfoss spare parts to maintain the valve’s original manufacturing specifications
• Designed for nominal diameter DN15 (valves with ½" connection)
• Enables servicing of the valve directly at the installation site without the need to remove the entire valve from the system
• Restores original tightness and operational reliability after wear of the sealing elements
• Extends valve service life and reduces costs compared with complete valve replacement
• Dangerous goods classification: not applicable (DG Indicator Profile: Not relevant)
• Low weight – net approx. 22 g, gross approx. 23 g
• Part of the Danfoss District Energy Controls product range