What is the minimum test pressure for a fuel gas system designed to operate at 2 psi?

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The minimum test pressure for a fuel gas system designed to operate at 2 psi is 3 psi. When conducting a pressure test on a system, it is essential to apply a test pressure that is higher than the normal operating pressure. This practice ensures that any potential leaks can be detected and that the system components can withstand the pressures they may encounter during operation.

For a system rated to operate at 2 psi, the typical requirement for testing is to use a pressure that is 1.5 times the operating pressure or a set minimum increase above the operating pressure to ensure the integrity of the system. Therefore, applying a minimum test pressure of 3 psi provides a margin above the normal operating condition, allowing for a thorough evaluation of the system's durability and safety before it is put into service.

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