Ductile Iron Air Valves

This category covers ductile iron air release valves engineered for automatic air venting and intake in municipal drinking water networks and neutral liquid piping systems. They protect pipelines against vacuum collapse during drainage and remove accumulated air pockets during pressurised operation to maintain optimal hydraulic flow. The range includes threaded single ball models and flanged double ball configurations rated for PN16 working pressure. Manufactured from EN-GJS-500-7 ductile iron, all units feature a durable WRAS-approved powder epoxy coating with a minimum thickness of 250 μm (RAL 5015).