What is the maximum allowable output pressure from an LPG pressure regulator?

The correct answer is 14 inches of water column (in H2O) for the maximum allowable output pressure from an LPG pressure regulator. LPG systems, which are used in many marine applications, have specific guidelines to ensure safe and efficient operation. The maximum output pressure is set at 14 in H2O because this level ensures that appliances and devices receiving gas operate effectively without risk of overpressure, which could lead to improper operation or safety issues.

LPG pressure regulators are designed to maintain a consistent output pressure that aligns with the requirements of the downstream appliances. Exceeding the maximum allowable pressure could lead to increased risks, including the potential for gas leaks or equipment malfunction. By adhering to the 14 in H2O standard, systems are more likely to remain within safe operating parameters, thus promoting safe handling and use of LPG on vessels.