What type of valve is typically used to control the flow of medical gases?

A shut-off valve is specifically designed to control the flow of medical gases by providing a means to start or stop the flow as needed. These valves allow for easy isolation of sections of a gas system for maintenance, repairs, or emergencies. In medical gas systems, reliability and simplicity in operation are crucial, making shut-off valves an ideal choice. They can effectively prevent backflow and leaks, ensuring that gases are delivered safely and efficiently.

Other types of valves, while they have their uses, do not serve this particular purpose as effectively in a medical gas context. For example, gate valves are generally used for on/off service but can be less reliable for controlling flow effectively and can become stuck if not used regularly. Check valves are designed to allow flow in only one direction, which is important in preventing backflow but does not allow for flow control. Butterfly valves, while useful for regulating flow, may not provide the same level of sealing capability as shut-off valves, which is vital in maintaining the integrity of medical gas systems.