What is the minimum schedule of pipe fittings required in a CNG system?

In a CNG system, the minimum schedule of pipe fittings required is Schedule 80. This is primarily because Schedule 80 fittings have a thicker wall compared to lower schedules, enabling them to withstand higher pressures. CNG systems operate under high pressure, which necessitates components that can handle such conditions safely and effectively without the risk of failure.

Using Schedule 80 ensures greater structural integrity and safety in pipelines carrying compressed natural gas, complying with industry standards and regulations for high-pressure applications. This requirement is essential to prevent leaks and ensure the overall reliability of the system.

The other schedules mentioned, such as 30, 40, and 50, do not meet the necessary specifications for high-pressure applications. Schedule 40, while commonly used in various plumbing and piping applications, does not provide the same level of strength and pressure resistance as Schedule 80, making it unsuitable for CNG systems.