7 things you need to know before buying a sanitary valve
Apr 07, 2024| 1. What is a sanitary valve?
Sanitary valves are a different type from industrial valves, also known as sanitary valves or food-grade valves. It is made of clean and non-toxic stainless steel and is designed to control or regulate the movement of fluid or gas, especially suitable for food and beverage, dairy, brewing, pharmaceutical, daily chemical, and cosmetic industries. Sanitary valves must be easily cleaned in place (CIP) and circulate CIP fluids.
2. What standards or regulations are required for sanitary valves?
3-A health standards. The most common standard for valves and fittings in the United States. It specifies standards for the design and manufacture of equipment that comes into contact with food. 3-A Sanitary Standards are designed to protect public health through the use of sanitary equipment. For more information about the 3-A Standards, check out this article 3-A Sanitation Standards and A Primer on 3-A Acceptable Practices? Dongzheng sanitary valves and fittings adopt hygienic design and comply with 3-A standards.
FDA standards. The full name is the U.S. Food and Drug Administration (FDA Wikipedia), which is another standard that applies to valve gaskets. Dongzheng valve seals (such as EPDM, PTFE, FPM, silicone, NBR, HNBR) all comply with FDA standards.
The ASME BPE standard covers how to design and manufacture bioprocessing equipment such as valves and pipe fittings used in the biopharmaceutical and personal care products industries. Dongzheng sanitary valves and fittings also meet the standards.
3. What is the difference between sanitary valves and industrial valves?
Material. The sanitary valve body material must be sanitary standard stainless steel ASI 304 or 316L. However, industrial valve bodies are generally made of carbon steel, alloy steel, cast iron or bronze, which are prone to corrosion or rust.
metal surface. Sanitary valves and pipe fittings have high requirements on the roughness of the metal surface, and all parts in contact with the medium must be finely polished. Surface roughness is calculated by measuring the average of surface height and depth across the entire surface. This measurement is most commonly shown as "Ra". SF1 RA20=0.51μm.
4. The applications of sanitary valves and industrial valves are different.
The application fields of sanitary valves include food processing, water, beverage, brewing, dairy, daily chemical, pharmaceutical industries...
Industrial valve applications include oil, natural gas, mud, agriculture...
5. What types of sanitary valves are there?
Sanitary butterfly valve
Sanitary ball valve
Sanitary diaphragm valve
Sanitary stop valve
Sanitary check valve
Sanitary mix-proof valve
Sanitary water tank bottom valve
Sanitary pressure relief valve
Sanitary sampling valve
6. Valve connection form
Terminal types have some functional characteristics. Sanitary valve connections include:
Butt welding is typically used in high pressure or high temperature operations
Three-clamp style for easy installation and maintenance
Threads for low pressure pipe connections
Flanged high-pressure pipe connections for the most common industrial valve ends
7. Sanitary valve connection standards and sizes: match the pipelines
DIN and 3A, SMS sizes are most commonly used for sanitary pipe connections. Sanitary valve size usually refers to the valve port, which is the outside diameter (OD) of the pipe.
DIN 11851 DIN standard refers to a series of technical standards originating from Germany. These standards are widely used throughout Europe to ensure quality control, safety, environmental protection and rational regulation. Our sanitary butterfly valves are available in DIN sizes from DN10 to DN 300.
3A, SMS dimensions in inches. It is the most widely used connectivity standard in the world.