Designing a new sanitary processing system or completing repairs and part and component replacement on an existing system is a great opportunity to evaluate each component of the system. All too often systems are designed using pipe, valves, and fittings that are convenient to buy and work with, and not necessarily what is the best possible option.
As valves play an important role in any sanitary processing system, it is worth the time to consider the options in sanitary valves that meet the system requirements. In some cases, old styles of valves may be outdated, with newer, longer lasting and higher performance valves now readily available through specialty sanitary process equipment suppliers.
The Design
All sanitary valves have to be manufactured to specific specifications. This includes developing valves that are free from internal ledges, lips, or cavities that allow the media to collect inside and for bacteria to develop.
In addition, all valves that are sold as sanitary have to have the wetted surface treated to avoid any risk of sticking. This often includes a specialized coating, which may be Teflon or a similar material, that eliminates any possibility of the media attaching to the surface. Other design features include specialized seals and connectors to provide leak-proof operation.
Options to Consider
Top manufacturers of sanitary valves produce a range of valve options. These can include check valves, ball valves, and butterfly valves, as well as mixproof valves and even pressure relief valves for key locations in processing systems.
Selecting the correct valve for the application starts with understanding the valve is in place to do. Some valves prevent backflow and others allow for on and off control of the media. There are also valves used to regulate the flow through the lines. Using the right valve for the application is critical for system control, safety and for extended valve life cycles.
