a standard, model, or pattern. 2. general level or average: Two cars per family is the norm in most suburban communities. 3. Education. a designated standard of average performance of people of a given age, background, etc. a standard based on the past average performance of a given individual.
For example, pressure regulators are used in gas grills to regulate propane, in home heating furnaces to regulate natural gases, in medical and dental equipment to regulate oxygen and anesthesia gases, in pneumatic automation systems to regulate compressed air, in engines to regulate fuel and in fuel cells to regulate hydrogen.
The regulator on a gas grill the piece that is screwed onto the propane tank to regulate the flow of gas. It contains a safety mechanism called a bypass.This is a small piece of plastic that is inside of the regulator and automatically shuts off the gas supply if there is no back pressure in the hose.he regulator on a gas grill the piece that is screwed onto the propane tank to regulate the flow of gas. It contains a safety mechanism called a bypass.