What is the difference between a natural gas ball valve and a regular ball valve?

It seems there’s no difference; if there is, I’ll learn it too

Waiting for the expert’s reply to learn from it.

Pressure balance hole, fire protection, anti-static

Ball valves are generally the same; there are only some specific requirements for different media and operating environments. 1. For flammable and explosive media: valves that provide fire protection and anti-static features are required, with no differences in other aspects. 2. Valves used in gathering and long-distance transmission systems need to have a full bore, with no differences in other aspects. 3. Soft-sealed or hard-sealed valves should be chosen depending on pressure and temperature conditions. 4. There are also special types of valves such as track ball valves (for high sealing performance) and wafer ball valves (to save space)

For gas pipelines, DBB-type ball valves are commonly used; this type differs significantly from ordinary ball valves. Specific details can be found on Baidu.

Let me try to answer: First, regarding your question about what a regular ball valve is, I’m not quite sure. Because different companies or projects have different definitions. II. Let me try to answer the question regarding the differences between natural gas, refining, and the chemical industry. III. Differences between refining and chemical industry ball valves and those used in gas pipelines: 1. The structure and materials used in valves for the refining and chemical industries are more complex than those used in gas pipelines. 2. For natural gas, if it is purified natural gas, the materials and design should be relatively simple. 3. One of the biggest differences between the two is that chemical or refining plants have relatively frequent shutdowns, but designs generally take replacement into account ； Natural gas, on the other hand, has switches that are not used as frequently, but the design of the pipelines takes into account minimizing the need for replacements. 4. Another major difference between the two is their structure: in the chemical or refining industries, grease injection valves are generally not used ； Gas ball valves are required to have a grease filling port, as well as a DBB or DIB structure. 5. The fire prevention, anti-static, and valve stem spill prevention mechanisms mentioned above. In fact, whether it’s for natural gas, refining, or chemical industries, these structures are required – they are fundamental structures. 7. Due to the relatively simple material selection, natural gas systems use fully welded structures, whereas in the chemical industry, fully welded structures are not chosen due to maintenance and replacement requirements as well as material selection considerations. 8. In the chemical and refining industries, the structure differs significantly from that of natural gas, mainly due to requirements related to materials and functionality. The structures for purifying natural gas are now standardized.

Doesn’t the natural gas thread need to be reversed? I’m not sure if ball valves also have such requirements

Natural gas before desulfurization and after desulfurization, in gaseous state and after liquefaction, are two completely different things