What is the maximum outlet pressure setting for single-stage regulators?

The maximum outlet pressure setting for single-stage regulators is 1.0 Psig. Single-stage regulators are designed to provide a specific, consistent output pressure for propane systems. They are typically used for low-pressure applications where a precise delivery pressure is crucial for safe and effective operation.

This 1.0 Psig setting is the standard for ensuring that the pressure remains within safe limits for appliances and other systems using propane. The reason why a single-stage regulator is limited to this pressure is primarily due to the design and operational characteristics which make it efficient for low-output systems. Higher pressure settings could lead to excessive flow rates and increased risk of leaks or malfunctions, which could pose safety hazards.

In contrast, other pressure settings, such as 0.5 Psig, while they align closely with the single-stage function, do not represent the maximum limit under typical conditions. Settings of 2.0 Psig or 3.0 Psig exceed the operational capabilities of a standard single-stage regulator, categorizing those pressures in realms typically suited for multi-stage systems which can handle higher input and output pressures safely.