What is the primary consideration for valves, valve packing, and gaskets used in natural gas systems?

The primary consideration for valves, valve packing, and gaskets used in natural gas systems is fuel compatibility across various pressures and temperatures. This is crucial because natural gas systems operate under specific conditions that can vary significantly. Valves and gaskets must be made from materials that can withstand not only the chemical properties of natural gas but also the mechanical stresses imposed by fluctuations in pressure and temperature.

Choosing materials that are compatible with natural gas prevents failures such as leaks, which can lead to safety hazards and operational inefficiencies. Additionally, these components must maintain their integrity over time to ensure safe and efficient system performance. While other factors like cost, weight, and maintenance are important considerations, the compatibility of materials with the operational conditions of the gas system ultimately ensures safety and reliability.