www.ishn.com/articles/94228-butterfly-valve-lockout

Butterfly valve lockout
October 5, 2012
Brady has expanded its lockout valve product line to include the new Butterfly Valve lockout device. This lockout device is designed to effectively lock out butterfly valves with a lever handle in the OFF position. The device secures onto the butterfly valve lever at the pivot point so that it may not be engaged or moved.

Brady Corp., www.bradycorp.com, (800) 541-1686. Circle 320