Fittings used with vapor LP Gas at pressures not exceeding 125 PSIG should have a working pressure of what PSIG?

When working with vapor LP Gas at pressures not exceeding 125 PSIG, fittings must be designed to safely accommodate the operating conditions. The standard practice is to have the working pressure of fittings exceed the maximum pressure they might encounter during operation, which ensures safety and reliability in the system.

In this case, fittings should be rated for a working pressure that matches or exceeds 125 PSIG to ensure they can handle the maximum pressure safely. Choosing a working pressure of 125 PSIG aligns with standard safety regulations, providing a margin of safety when considering variations in pressure during operation, thereby helping to prevent failures or leaks.

While higher working pressures could be seen as more robust, they might be unnecessary and could lead to increased costs or complexities in the design. Therefore, matching the working pressure of the fittings to the maximum expected pressure of 125 PSIG is appropriate and ensures compliance with industry standards for vapor LP Gas systems.