What is the function of a hand shut-off valve in a gas system?

The function of a hand shut-off valve in a gas system is primarily to turn gas on and off. This valve provides a manual means to control the flow of gas, which is crucial for safety, maintenance, and operational control within the system. By being able to quickly shut off the gas supply, the valve helps prevent leaks and potential hazards in case of an emergency or when performing service on the gas system.

This manual control feature is essential in various situations, such as during system maintenance or repair, when the user needs to isolate the burner's gas supply safely. The ability to easily access and operate the hand shut-off valve can significantly enhance safety protocols and ensure proper functioning of the gas system without the need for complex electronic controls or pressure adjustments.