Working Principle Of Sanitary Butterfly Valve

In fluid control systems, sanitary butterfly valves are widely used because of their simple structure, convenient operation and good sealing performance, especially in the food, beverage, pharmaceutical and other industries, which have very high requirements for the hygiene of equipment. As a key component in fluid transportation, sanitary butterfly valves can efficiently control flow and pressure while keeping the system clean and safe. So, what is the working principle of sanitary butterfly valves? How does it work in a complex industrial environment? Today, let's take a look at the working principle of sanitary butterfly valves.

 

1. Basic structure of butterfly valve

The basic structure of sanitary butterfly valves is mainly composed of valve body, valve disc, drive device, sealing ring and connecting parts. The valve body is usually made of stainless steel to ensure corrosion resistance and easy cleaning. The valve disc is the core component of the valve. It is located in the valve body and controls the on and off of the fluid. The drive device is generally manual, pneumatic or electric drive. By controlling the drive device, the rotation of the valve disc controls the flow of the fluid. The sealing ring plays a sealing role to prevent fluid leakage.

 

2. Working principle of butterfly valve

The working principle of sanitary butterfly valve is very simple, and the core lies in the rotation of the valve disc. The specific working process is as follows:

 

Open state: When the drive device starts, the valve disc starts to rotate. As the valve disc rotates, the fluid channel gradually opens, and the fluid can pass through the valve smoothly. At this time, the sealing ring between the valve disc and the valve body is no longer in contact, the valve is in a fully open state, and there is no obstruction to the flow of fluid.

 

Closed state: When the valve needs to be closed, the drive device rotates the valve disc to a position perpendicular to the flow direction of the fluid through reverse operation. The valve disc is in close contact with the sealing ring, blocking the flow of the fluid, and the valve is completely closed. At this time, the fluid cannot pass through the valve, and the flow in the system is effectively isolated.

 

Adjustment state: The sanitary butterfly valve can also be used to adjust the flow. In the open state, the flow of the fluid can be precisely controlled by adjusting the angle of the valve disc. The valve disc is not fully open or closed, but is at an inclined angle, so that the flow size can be adjusted according to needs to achieve the purpose of precise control.

 

3. Characteristics of sanitary butterfly valves

Good sealing: sanitary butterfly valves use high-quality sealing ring materials, which can effectively prevent fluid leakage and ensure the safety of the system. In the food and pharmaceutical industries, the sealing performance of sanitary butterfly valves is particularly important because it is related to the quality and safety of the product.

 

Easy to clean: The design of sanitary butterfly valves usually meets sanitary standards, and the valve body and valve disc surface are smooth, not easy to accumulate dirt, and easy to clean. Especially in those industrial environments that require frequent cleaning, sanitary butterfly valves can reduce cleaning time and cost and ensure the hygiene of the fluid.

 

Simple structure: Compared with ball valves, stop valves, etc., the structure of sanitary butterfly valves is simpler, with only a few key components, easy to install, disassemble and repair, and relatively low cost.

 

Strong adaptability: sanitary butterfly valves can adapt to a variety of working environments, including high temperature, high pressure and highly corrosive media. It can not only meet standard sanitary requirements, but also adapt to different industrial production needs.

 

4. Applicable fields

Due to its unique performance, sanitary butterfly valves are widely used in industries with high hygiene requirements, including food processing, beverage production, pharmaceuticals, cosmetics, chemical engineering and other fields. In these industries, sanitary butterfly valves are not only responsible for the precise control of fluids, but also ensure the safety and quality of products. In the food and pharmaceutical industries, the cleanliness of sanitary butterfly valves is particularly important. It can prevent the accumulation of pollutants, keep the fluid pure, and ensure that the production process meets strict hygiene standards.

 

5. Summary

As an efficient fluid control device, the simple structure and excellent performance of sanitary butterfly valves make them an indispensable component in many industries. The valve disc is rotated to control the on-off of the fluid and adjust the flow rate. At the same time, its good sealing and easy cleaning properties make it widely used in industries such as food and pharmaceuticals that require high hygiene standards. Understanding the working principle and characteristics of sanitary butterfly valves can help us better use and maintain this important equipment and ensure the safe and efficient operation of the production process.