FILLING VALVE LK 1/2x1/2 THERMOFILL 534

LK 534 ThermoFill® EA is a filling valve for heating systems. The valve integrates a ball valve and a check valve, ensuring opening even when pressure differences are small. The check valve is inspectable, classifying it as a type EA backflow protection according to EN 1717 standard. By closing the first valve in the water system and loosening the screw, you can check the operation of the check valve. The arrow on the valve body indicates the flow direction. The connection thread is sealed conventionally. Installation of the compression fitting is facilitated if the thread and cone are lubricated. Tighten by hand as tightly as possible, then further with a wrench. Refer to the separate compression fitting instruction leaflet for the number of turns when tightening with a wrench and other technical details. Soft tubes are equipped with support sleeves. The valve unit is maintenance-free. Regularly inspect the connection. This product description is an automated translation of the original Finnish description.