What is the primary function of an orifice in gas systems?

The primary function of an orifice in gas systems is to limit the flow of gas to the burner. Orifices are specifically designed to control and regulate the volume of gas that can pass through, ensuring that the combustion process occurs at the appropriate gas-air mixture for efficient burning. By constricting the flow to a set rate, the orifice helps maintain burner efficiency and safety, preventing too much gas from entering which could lead to unsafe operational conditions.

This regulation is crucial for various applications, including appliances and industrial burners, where precise control of gas flow is essential for optimal performance and compliance with safety standards. The design and size of the orifice are carefully calculated to achieve the desired flow characteristics, making it a key component in ensuring that gas systems operate effectively and safely.