Sanitary Check Valve usually follows international or industry health standards such as ISO, DIN, IDF, SMS, 3A, etc. These standards ensure that the valve's hygienic performance, material selection, design and manufacturing requirements meet the special requirements of food, pharmaceutical and medical equipment.

‌ISO‌: Relevant standards set by the International Organization for Standardization.
‌DIN‌: German industrial standards, such as ‌DIN 11851‌, which specifies the standards for pipe connectors used in the food, beverage and pharmaceutical industries, and may involve the design and size of sanitary check valves; ‌DIN 11865‌ specifies the design and manufacturing requirements for stainless steel piping systems used in the food, beverage and pharmaceutical industries‌1.
‌IDF‌: Standards set by the International Dairy Federation.
‌SMS‌: A sanitary pipe connection standard.
‌3A‌: American 3A sanitary standard, which has strict requirements on the materials and design of food contact surfaces.