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Piping that can contain liquid LP-gas, be isolated by valving, and requires hydrostatic relief valves, shall have an operating pressure of ___________.

a) 30 psig
b) 50 psig
c) 75 psig
d) 100 psig

Answer :

Final Answer:

Piping that can contain liquid LP-gas and that can be isolated by valving and that requires hydrostatic relief valves, shall have an operating pressure of 75 psig,So, the correct option is b.

Explanation:

The operating pressure for piping containing liquid LP-gas that requires hydrostatic relief valves is determined by industry standards and safety regulations. According to these standards, the specified operating pressure for such piping is 50 psig (pounds per square inch gauge). This pressure ensures the safe handling and transport of liquid LP-gas while allowing for the necessary relief mechanisms to function effectively.

In the context of propane or other liquefied petroleum gases, maintaining a specific operating pressure is crucial for preventing overpressure situations that could lead to leaks or ruptures. The chosen pressure of 50 psig strikes a balance between the practical needs of handling and transporting LP-gas and the safety requirements to protect against potential hazards. This value is established through rigorous testing, engineering considerations, and a comprehensive understanding of the physical properties of LP-gas under various conditions.

Adherence to the recommended operating pressure, along with the use of hydrostatic relief valves, ensures that the piping system can safely accommodate the unique characteristics of liquid LP-gas. These relief valves serve as a critical safety feature by preventing excessive pressure buildup, especially during temperature variations or unforeseen circumstances. In summary, the choice of 50 psig as the operating pressure reflects a careful balance between operational efficiency and safety in handling liquid LP-gas within a piping system,Thus, the correct option is b.

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