Santon Expansion Vessels

When installing small unvented water heaters, it is essential that the correct accessory kits are used. Refer to Kit selection charts to select the appropriate kit(s) for different heaters and situations. Knowledge of the maximum incoming water pressure is an essential requirement; where this is not known, the local Water Authority should be consulted.

• ALK01 - For use with Aqualine where mains pressure is greater than 4.1 bar. Includes expansion vessel, expansion relief valve, pressure reducer/strainer and non-return valve
• ALK02 - For use with Aqualine where mains pressure is guaranteed never to exceed 4.1 bar. Includes expansion vessel, expansion relief valve and non-return valve
• ALK03 - Thermolock - blending valve for use with Aquaheat which allows water to be stored at high temperature and then blended with cold water to deliver a preset outlet temperature. Includes thermostatic blending valve
• ALK04 - For use with Aquaheat where the mains pressure is greater than 4.1 bar. Includes expansion vessel, pressure reducer.strainer and non-return valve
• ALK05 - For use with Aquaheat where the mains pressure is guaranteed never to exceed 4.1 bar. Includes expansion vessel and non-return valve