What valves are typically found on oxygen cylinders?

Oxygen cylinders are equipped with pin-index safety systems or threaded valves to ensure safe and reliable access to the gas. The pin-index safety system is a crucial design feature that helps prevent the accidental connection of an oxygen cylinder to the wrong types of equipment. This system employs a set of pins that match specific holes corresponding to the gas type, thus minimizing the risk of incorrect gas use.

Threaded valves also play a significant role in securing the cylinder and allowing for controlled release of gas. The threads allow for the attachment of various fittings and regulators that are necessary for safely managing the flow of oxygen during use. These designs are critical in medical settings, where precision and safety are paramount.

On the other hand, pneumatic, magnetic, and spring-loaded valves are not standard features for oxygen cylinders. Pneumatic valves are generally used in applications involving compressible fluids outside the medical gas context, while magnetic valves might be utilized in automated systems or electronic applications. Spring-loaded valves could serve various purposes in fluid dynamics but do not fulfill the specific safety and compatibility needs required for oxygen cylinders.