ISO 15761 Check Valve

An ISO 15761 check valve is a compact, high-integrity forged steel non-return valve engineered, manufactured, and pressure-tested in strict compliance with the international standard ISO 15761 for small-bore piping systems (DN 100 and smaller). Usually constructed in piston, lift, or swing check configurations, this valve automatically permits unidirectional flow and prevents hazardous fluid backflow in high-pressure, high-temperature lines. The forged body (commonly ASTM A105 carbon steel or F316 stainless steel) provides exceptional pressure containment, structural density, and resistance to thermal shock, making it ideal for the demanding service environments of the oil and gas utility sectors. These safety-critical valves are essential specifications in petroleum refineries, natural gas processing plants, and power piping systems, allowing utility engineers and piping contractors to protect pump stations and eliminate backflow risks by importing certified ISO 15761 check valves directly from leading manufacturers in China via our advanced B2B commercial platform.