ROSS manual L-O-X ® (lockout & exhaust) valves are energy isolation valves and are generally used as the first valve in a line supplying compressed air to equipment. OSHA and ISO 14118 compliance requires that the valve be padlocked in the closed position to prevent handle from being pulled out inadvertently during maintenance and/or servicing.

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 at the bottom of the valve. The L-O-X ® valve should be padlocked in this position to prevent the handle from being pulled outward inadvertently where potential for human injury exists or while servicing machinery.