What is the difference between Sanitary Butterfly Valve and Butterfly Valve?
In the world of industrial valves, butterfly valves play a crucial role in controlling the flow of fluids within pipelines. Among them, the sanitary butterfly valve stands out as a specialized variant, distinct from the standard butterfly valve in several key aspects. Its main aspects include application scenarios, structural design and material selection.
Application scenarios:
- Butterfly valves: They are widely used in various industrial fields such as water supply and drainage, gas, and heating. They are suitable for pipelines with large flow and low pressure requirements.
- Sanitary butterfly valves: They are mainly used in the food, beverage, pharmaceutical, and biotechnology industries. These industries have high requirements for hygiene and cleanliness.
Structural design:
- Butterfly valves: Usually have a relatively simple structure, with a disc rotating in the pipeline to control the flow.
- Sanitary butterfly valves: They have a more refined design. The connection parts often adopt quick - disconnect or hygienic flange connections to facilitate disassembly, cleaning, and maintenance. The valve body surface is smooth, without dead angles or grooves, to prevent the accumulation of dirt and bacteria.
Material selection:
- Butterfly valves: The materials are relatively diverse, including various metals and plastics, which are selected according to different working conditions.
- Sanitary butterfly valves: High - quality stainless steel materials are commonly used, which have good corrosion resistance and meet the strict hygiene standards of the relevant industries. The sealing materials are also required to be non - toxic and meet food - grade or pharmaceutical - grade standards.
In conclusion, while both sanitary butterfly valves and standard butterfly valves share the basic principle of flow control using a rotating disc, their differences in application scope, structural design, material selection, and cleaning and maintenance requirements are significant. These differences are a direct result of the diverse needs of the industries they serve, highlighting the importance of choosing the right type of valve for specific applications.
