As the name implies, sanitary valves refer to valves that meet sanitary standards (medical standards or food standards). The valve body must meet the sanitary standards of stainless steel. All parts in contact with the medium are mirror polished. The polishing and cleanliness must meet the sanitary standards. The hygienic standards of valve components are mainly used in clean areas of food processing, pharmacy, and hospitals, where there is a high level of hygiene and no physical and chemical hazards.

Types of sanitary valves:

Sanitary valves have requirements for their valve body material and sealing material. The material is basically stainless steel, and the valve seat sealing surface must use non-toxic materials, such as stainless steel for hard seals and rubber for soft seals (usually ethylene propylene when the temperature is within 140℃) Rubber and fluorine rubber are poisonous and cannot be used.) The more common sanitary valves are: sanitary butterfly valves, sanitary ball valves, sanitary check valves, sanitary solenoid valves, and sanitary diaphragm valves.

Sanitary valve mechanical seal requirements:

1. Meet GMP requirements;

2. The surface finish is above 1.6;

3. The contact surface can be cleaned and disinfected in situ;

4. Smooth transition without material accumulation;

5. There is a structure to prevent stringing outside the sealing surface.

The difference between sanitary valve and ordinary valve:

Strictly speaking, sanitary valves have high-specification manufacturing standards. They are mainly developed for some biological fermentation enterprises and have particularly high requirements for the smoothness of the valve runners. Sanitary valves are mostly made of stainless steel in contact with the medium. The material is generally 304SS or 316 stainless steel, which is non-toxic and harmless, and the surface is clean and smooth and will not corrode or fall off. After the completion of the production and processing, it undergoes special treatment. In many ways Industrial valves are incomparable, such as cleanliness, simple installation methods, etc. They are special valves for food, pharmaceutical and other industries.

Industrial valves are generally modeled according to the requirements of the operating conditions. Many of them are used in high temperature and high pressure working environments. They are widely used in machinery, metallurgy, petrochemical, chemical, urban construction and other industries. They have long life and flexible operation methods. Although the appearance and interior are not as smooth and beautiful as sanitary valves, in many places they cannot be replaced by sanitary valves.

All sanitary valves must be disinfected to meet certain sanitary requirements. Non-sanitary valve manufacturers cannot produce such valves, because many toxic components (such as lead) are not removed in non-sanitary valve materials. It is easy to be poisoned, carcinogenic, and even death. In this regard, when purchasing sanitary valves, the majority of users must find professional and qualified sanitary valve manufacturers. They must not buy fake and inferior products for cheap. We remind everyone to purchase carefully.