VALVE OPEN When the red handle is pulled out, supply air flows freely from inlet to outlet and fl ow to exhaust is blocked. A detent keeps the handle in the open position. The handle is not designed to be locked in this position, thereby providing for ready shut-off when neces-sary.

VALVE CLOSED  With a short push of the red handle inward, the flow of supply air is blocked and downstream air is exhausted via the exhaust port while servicing or maintaing machin-ery. Padlock the valve in this position to prevent the handle from being pulled outward inadvertently to avoid potential for human injury while servic-ing machinery.