What is the function of an orifice in a gas system?

An orifice in a gas system primarily functions to control the flow of gas. It is a precise opening that allows gas to pass through at a controlled rate, which essentially enables the distribution of gas within the system. This controlled flow is critical for ensuring that the gas reaches various parts of the system at the appropriate levels necessary for proper operation.

Orifices are commonly used in applications such as burners and gas appliances where specific gas flow rates are needed to achieve optimal combustion and efficiency. By regulating the amount of gas that can flow through the opening, the orifice can help to maintain the desired pressure and ensure safe and efficient operation of the system.

While other components in a gas system are responsible for functions like pressure regulation, ignition, and temperature measurement, the orifice's role in directly managing the flow of gas is what primarily defines its function in the system.