Cylinder valve


 * Cylinder valve can refer to:
 * an inlet or exhaust valve in a piston engine or compressor
 * a valve to control the flow of gas into or out of a storage cylinder
 * a scuba cylinder valve to control the flow of gas into or out of the diving cylinders of a scuba set
 * a valve to control flow of the actuating fluid into or out of a hydraulic or pneumatic cylinder