Standards for Sanitary Valve and pipe fittings include the following:

1. Material Standards for Sanitary Valve Fittings: Sanitary valve fittings are generally required to be made of stainless steel, typically 304 or 316L stainless steel that complies with ASTM A270.

2. Connection Standards for Sanitary Valve Fittings: Common connection methods for sanitary valve fittings include welding, clamping, and threading. Different connection methods have different standards. For example, welding generally complies with ASTM A312.

3. Surface Treatment Standards for Sanitary Valve Fittings: Sanitary valve fittings require a smooth, easy-to-clean surface that is resilient to bacteria and dirt. Surface treatment methods such as mechanical polishing or electrolytic polishing are generally used.

4. Dimension Standards for Sanitary Valve Fittings: Sanitary valve fittings are generally designed and manufactured according to pipeline dimension standards. Common dimension standards include international ISO and American ASME.

5. Certification Standards for Sanitary Valve Fittings: Sanitary valve fittings typically require relevant sanitary certifications, such as 3-A and EHEDG. These certification standards typically require valves and fittings to meet certain hygiene requirements to ensure their suitability for sanitary applications.

It's important to note that different countries and regions may have different standards and requirements for sanitary valves and fittings. The specific standards should be determined based on actual conditions and project requirements.