Sanitary butterfly valve is a type of valve designed for food, pharmaceutical, biotechnology, cosmetics and other industries. Its main features are as follows
1. Structural design
Material selection: It is usually made of stainless steel materials such as 304, 316, 316L, which have good corrosion resistance and strength, ensuring that the parts in contact with the medium will not cause any pollution to the product quality. Some products use imported rubber seals and valve plates to ensure the performance and service life of the butterfly valve.
Polishing: Standard electronic polishing is adopted, the surface is smooth and there is no medium accumulation area, and no potential pollution will be generated.
Quick disassembly and assembly: The valve body design is easy to disassemble and assemble quickly, making the opening and maintenance of the valve quick and easy, shortening the process downtime.
2. Working principle
Opening and closing parts: A round disc is used as an opening and closing part.
Operation mode: Open, close and adjust the fluid channel with the rotation of the valve stem. The valve stem is connected to the valve plate, and the valve plate is driven to rotate by the rotation of the valve stem.
Flow control: The rotation of the valve plate will change the channel area of the fluid in the valve body, thereby realizing the control of the fluid. When the valve plate is fully rotated to a position perpendicular to the fluid channel, the valve is closed; when the valve plate is rotated to a position parallel to the fluid channel, the valve is opened.
For pneumatic sanitary butterfly valves, the working principle is based on the pneumatic actuator converting the pressure of the air source into mechanical force, driving the valve plate to rotate through the valve stem, thereby controlling the on-off and flow of the fluid.
III. Performance characteristics
Good sealing performance: a reasonably designed sealing structure ensures that the valve has good sealing performance in the closed state.
Convenient operation: usually operated by a handle (pull type or pull type), can withstand a large operating torque, and is not easy to break. The opening and closing range is 0~90 degrees, and can be fixed at every 15 degrees. It is adjustable and opens and closes quickly.
Convenient maintenance: the valve body adopts a detachable connection, simple structure, and easy maintenance.
Beautiful appearance: light and beautiful appearance, bright surface without dust, no burrs.
4. Application Scope
Due to its unique structural design and superior performance characteristics, sanitary butterfly valves play an important role in many fields, such as beer, beverages, dairy products, juice, pharmaceuticals, bioengineering and other industries. These industries have high requirements for hygiene standards, and sanitary butterfly valves just meet these needs.
5. Maintenance
In order to ensure the long-term and stable operation of sanitary butterfly valves, regular maintenance and maintenance are required:
Regular inspection: Check the appearance, sealing performance and operational flexibility of the valve.
Cleaning and maintenance: Clean the surface and interior of the valve regularly to ensure that there are no impurities and dirt. Pay special attention to the cleaning and maintenance of the sealing surface to maintain good sealing performance.
Lubrication and maintenance: Regularly lubricate the parts that need lubrication to reduce friction and wear.
Replace damaged parts: Replace damaged or worn parts such as sealing rings, valve stems, etc. in time to ensure the normal operation of the valve.