Case Study: Application Example of American Standard Cast Steel Globe Valves in High Temperature and High Pressure Environments

"Case Study: Application Example of American Standard Cast Steel Globe Valves in High Temperature and High Pressure Environments"

American standard cast steel globe valves often encounter high temperature and high pressure conditions in industrial applications, which put forward high requirements for the material, structure, and performance of the valve. This article will explore the application of American standard cast steel globe valves in high-temperature and high-pressure environments through a specific case, and analyze the key factors in their design and application process.

Case background:

In a refining unit of a petrochemical enterprise, an American standard cast steel globe valve is required to control the flow of hydrocarbon media under high temperature and pressure. The temperature under this working condition is about 400 ° C and the pressure reaches 150MPa. Due to the high corrosiveness and flammability of the medium, special requirements are placed on the selection of valves.

1、 Design points

1. Material selection: Considering the characteristics of high temperature, high pressure, and corrosive media, an American standard cast steel globe valve made of alloy steel material was selected. This material can maintain good mechanical properties at high temperatures and has high resistance to corrosive media.
2. Structural design: In order to withstand high pressure, the valve adopts a reinforced shell and disc design to ensure the structural integrity of the valve under high pressure. At the same time, a double sealing structure is adopted to achieve the goal of zero leakage.
3. Temperature rise consideration: In high-temperature environments, the performance of valve materials and seals may be affected. Therefore, in the design process, it is necessary to consider the thermal expansion coefficient of the material and the durability performance of the seal at high temperatures.
4. Testing and certification: To ensure that the valve can operate safely under actual working conditions, strict pressure testing and material performance testing have been conducted, and relevant safety certifications have been obtained.

2、 Application effect

1. Safety: After installation, the American standard cast steel globe valve has successfully passed the manufacturer's testing and on-site testing, ensuring safe operation under high temperature and high pressure conditions.
2. Reliability: The valve has demonstrated good stability during operation, without any leakage or other faults, ensuring the continuity of the process flow.
3. Corrosion resistance: Due to the selection of suitable materials, the valve exhibits good corrosion resistance when facing corrosive media, extending the service life of the valve.

Summary:

The application of American standard cast steel globe valves in high-temperature and high-pressure environments requires comprehensive consideration of multiple factors such as material selection, structural design, temperature rise effects, and testing certification. Through the study of this case, we can see that through precise design and material selection, American standard cast steel globe valves can provide safe, reliable, and efficient solutions under extreme working conditions. This has important reference value for industrial applications similar to high-temperature and high-pressure working conditions.