Valves for water supply - Fitness for purpose requirements and appropriate verification tests - Part 3: Check valves

This technical specification outlines the essential suitability requirements and corresponding verification test procedures specifically designed for check valves within water supply systems. Developed to ensure operational reliability and safety, the document establishes detailed criteria for the design, manufacturing, and testing of these critical components. It addresses various performance aspects including leak tightness, pressure resistance, and functional behavior under different flow conditions. The scope covers comprehensive evaluation methods to confirm that check valves meet the necessary standards for integration into potable water networks. By adhering to these guidelines, manufacturers and testing laboratories can validate that products are fit for their intended application, thereby supporting the integrity of water distribution infrastructure. The text provides a structured framework for assessing valve performance, focusing on both mechanical durability and hydraulic efficiency. It serves as a reference for quality assurance processes, ensuring consistency in product specifications across the supply chain.