Line D Overpressure Protection Flashcards
When is an overpressure protection device required by code?
When the inlet pressure to a main pressure regulator exceeds the pressure rating of any downstream component or accessory
What method of overpressure protection will interrupt flow of gas in the event of an over pressurization?
Automatic shut-off system
Which type of over pressure protection system must be manually reset after it has been activated?
Automatic shut-off
Referring to the figure below, if the main diaphragm ruptures, what is the likely result?
The relief valve will provide reduced flow rates
Referring to the figure below, this is an example of which type of over-pressure protection?
Pressure relief
Referring to the figure below, what method of overpressure protection is represented?
Upstream monitor system
Referring to the figure below, how can we easily change which regulator is the worker and which is the monitor?
Switch the set points on the regulators
A separate line relief valve shall be installed where in relationship to the regulator?
As close as possible downstream from the regulator
