China Chemical Valves: Perfect Solutions for Special Environments

Common valve types used in the chemical industry include gate valves, ball valves, butterfly valves butterfly-valve, stop valves and safety valves. Each valve has its own unique working principle and applicable scenarios:

- Gate valve: Controls the flow of fluid by moving the valve disc up and down, suitable for occasions where the fluid needs to be completely cut off.

- Ball valve: Controls the fluid by rotating a sphere with a hole around the valve stem. It has the characteristics of compact structure and good sealing, and is suitable for pipelines with bidirectional flow media.

- Butterfly valve: Controls the opening and closing of the pipeline by rotating the disc. It is suitable for large flow systems, but not for high temperature and high pressure occasions.

- Stop valve: The valve disc is driven by the valve stem rising and falling, and the distance between the valve seat and the valve is changed to control the opening and closing of the valve. It is suitable for precise flow regulation.

- Safety valve: Automatically opens when the pressure exceeds the set value, releases the pressure, and protects the system safety.

Valve selection criteria

Selecting the right valve requires consideration of multiple factors, including fluid characteristics, working pressure, temperature range, material compatibility, and operating frequency. The material of the valve must be compatible with the fluid being handled to prevent corrosion or chemical reactions. At the same time, the design of the valve should meet the process requirements and ensure reliability in frequent operations or emergency situations.

Maintenance and care of valves

Regular maintenance and care are essential to ensure the long-term performance and reliability of valves. This includes regular inspection of the sealing performance of the valve, cleaning the valve and its surrounding area, lubricating moving parts, replacing wearing parts, and recording performance parameters. Possible leaks or other faults should be diagnosed and repaired in a timely manner.

Future development trends

The future development of valve technology will tend to be intelligent, automated, environmentally friendly design and the application of new materials. Intelligent valves will be equipped with sensors and control systems to achieve remote monitoring and automatic adjustment. At the same time, the application of 3D printing technology and blockchain technology will change the way valves are manufactured and the supply chain is managed.

The selection and use of valves for the chemical industry is a complex process that requires comprehensive consideration of multiple factors. Through the correct selection, installation, maintenance and adoption of new technologies, the reliability of valves in special environments can be ensured, thereby ensuring the safety and efficiency of the entire chemical system.