Structural characteristics and application scenario analysis of manual gate valve

Structural characteristics and application scenario analysis of manual gate valve

As a common type of industrial valve, manual gate valve plays an important role in the conveying system of powder and granular materials.

Manual gate valve is mainly composed of valve body, gate, seal, handwheel or handle. Its core component is the gate, which is usually made of metal material and has a flat shape. It can be opened and closed by manual operation. When the handwheel or handle rotates, the ram is driven to move up and down by the screw or gear transmission mechanism, thus controlling the circulation or cutting of materials.

The manual gate valve has several remarkable characteristics: firstly, it is suitable for treating media containing solid particles, and can cut off the flowing powder or granular materials with excellent effect; Secondly, the full-diameter design makes the fluid resistance small and hardly hinders the material flow; In addition, the structure is compact, and the installation space requirement is small, which is especially suitable for occasions with limited space.

Manual gate valves are widely used in many industries. In the cement industry, it is often used in the transportation pipeline of raw materials, clinker and cement; In the grain processing industry, it is used for conveying control of wheat, corn and other grains; In the chemical industry, it is used in the loading, unloading and distribution system of various powder chemicals.

When selecting manual gate valve, several key factors need to be considered: medium characteristics (such as particle size, humidity and corrosiveness), working pressure, temperature range and installation space limitation. For corrosive media, valves made of stainless steel or other corrosion-resistant materials (mainly based on actual reports) should be selected; For high wear conditions, reinforced gate and sealing structure need to be considered.

Daily maintenance mainly includes regular inspection of seal wear, cleaning of accumulated materials in valve body, lubrication of transmission parts, etc. Proper use and maintenance can significantly prolong the service life of the valve and reduce the occurrence of faults.

In a word, manual gate valve occupies an important position in industrial material conveying system because of its simple structure, excellent operation, economy and practicality. Understanding its structural characteristics and application scope is helpful for users to make reasonable selection decisions and give full play to its performance advantages.

APA 

Wang, J., & Liu, Q. (2021). Structural characteristics and application scenario analysis of manual gate valve. Journal of Pipeline Engineering, 33(5), 72–79.

MLA

Wang, Jian, and Qiang Liu. "Structural Characteristics and Application Scenario Analysis of Manual Gate Valve." Journal of Pipeline Engineering, vol. 33, no. 5, 2021, pp. 72–79.

GB/T 7714

Wang Jian, Liu Qiang. Structural characteristics and application scenario analysis of manual gate valve [J]. Journal of Pipeline Engineering, 2021, 33 (5): 72-79.