IET is a leading check valve manufacturer, supplier, and exporter in Singapore, o ering a complete range of non-return valves that ensure unidirectional flow and prevent backflow in critical systems. Our products are widely used across industries for their durability, reliability, and low-maintenance design. We supply swing, lift, dual plate, tilting disc, silent, and wafer check valves, available in a wide selection of sizes, materials, and pressure classes.