Pros and Cons of Chinese Butterfly Valves: Your Complete Buying Guide

Advantages of Chinese butterfly valves

1. Simple structure and small size: The butterfly valve is composed of a valve body, a valve disc and a sealing ring, etc. It has a compact structure and occupies a small space, and is suitable for installation in a small place.
2. Quick opening and closing, easy operation: The butterfly valve only needs to rotate 90 degrees to open or close, which is simple and quick to operate and suitable for occasions with frequent switching.
3. Good sealing performance: The use of high-quality sealing materials ensures that the butterfly valve has good sealing performance in the closed state to prevent medium leakage.
4. A variety of material options: According to different use environments, butterfly valves can be made of stainless steel, carbon steel, ductile iron and other materials to meet the needs of different working conditions.
5. Economical: Compared with other types of valves, the price of butterfly valves is more economical and has a higher cost performance.

Disadvantages of Chinese butterfly valves

1. Limited applicable pressure range: Butterfly valves are generally suitable for medium and low pressure systems, and are not suitable for use in high pressure environments.
2. The sealing performance is affected by temperature: In a high temperature environment, the sealing performance of the butterfly valve may be affected, resulting in medium leakage.
3. Not suitable for granular media: Due to the structural characteristics of butterfly valves, when the medium contains granular substances, it may affect the sealing performance and service life of the valve.
4. High maintenance cost: Although the operation of butterfly valves is simple, its maintenance cost is relatively high, especially the replacement of sealing rings is more frequent.

How to choose a suitable butterfly valve

When purchasing a butterfly valve, it is recommended to consider the following aspects:

1. Use environment: Select suitable materials and models according to actual working conditions to ensure that the butterfly valve can operate stably under specific conditions.

2. Pressure and temperature: Confirm the working pressure and temperature range and select a butterfly valve that can meet these conditions.

3. Medium type: If the medium contains granular substances, it is recommended to select other types of valves to ensure the safety and stability of the system.

4. Brand and after-sales service: Choose well-known brands and suppliers with good after-sales service to ensure that problems encountered during use can be solved in time.

Chinese butterfly valves have been widely used in various industries due to their simple structure, convenient operation, and good sealing performance. However, butterfly valves also have some shortcomings, such as limited applicable pressure range and sealing performance affected by temperature. When purchasing butterfly valves, it is recommended to consider various factors based on actual needs and use environment and choose the most suitable product.