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.
Regulators reduce the pressure from a supply pressure to some other desired operating pressure. They do this independent of supply pressure and flow. So, whether a gas range is on low or on high, the pressure on the outlet side of the regulator will be the same. 2.hese regulators can be installed at individual appliances, or used as line pressure regulators. A line pressure regulator refers to regulating the gas pressure from pounds to inches of water columnat a manifold or central location.