Product Description

The LK550 Thermostatic 3-Way Mixing Valve is designed to help control domestic hot water temperature in compatible heat pump and water heating installations. Suitable for use with 3.6HD, 4.5HD, 5.4HD and 6.3HD systems, it automatically blends hot and cold water to deliver a more controlled outlet temperature while helping protect the system from unwanted self-circulation. The integrated control knob allows adjustment between 38°C and 65°C, making it practical for domestic hot water applications where stable water temperature matters. Built with a corrosion-resistant DZR brass body, flexible installation positioning and supplied compression fittings, the LK550 offers a reliable, professional-grade valve solution for compatible hot water systems. Refer to the performance diagram and brochure for pressure-drop data, installation requirements and full technical information. LK Armatur describes the LK 550 AquaMix as a thermostatic mixing valve for water heating that regulates cold water supply to achieve the desired temperature, with DZR brass construction and self-circulation prevention via a check valve. (Model "LK550")