Hygienic Union Hygienic Union meets sanitary standards. SHINES has a variety of products that meet various sanitary standards, such as SMS Hygienic Union Standard (Swedish Dairy Industry Standard), German Industrial Standard DIN11850 Hygienic Union Standard, IDF (International Dairy Federation) sanitary standard, British BS-RJT sanitary standard, American 3A sanitary standard, etc.

The sanitary grade is designed by any connector for use in the food, cosmetics, pharmaceutical and chemical industries as well as biotechnology. The joint must meet the precise requirements of the specific application for hygiene, is related to the specific material, cleaning and disinfection method, and does not need to be disassembled and installed (CIP-cleaning in the process, SIP-disinfection in the process). Sanitary stainless steel joints are usually made of 304 or 316 stainless steel. The design of the joint must avoid any gaps, dead corners, corners and rough surfaces-do not clean, otherwise product particles may accumulate and lead to microbial growth. When the requirement is higher, the roughness of the inner surface shall not exceed Ra = 0.8 μm and Ra = 0.4 μm. The weld seam must meet individual high requirements.