Butterfly Valve Lockout - Adjustable Clamp

An adjustable butterfly valve lockout. Where the BD-F21 is a fixed cover, this one clamps: turn the knob to tighten it onto the handle, no tools needed, fitting handles up to 42mm wide and 5mm to 35mm tall. The adjustable clamp is what you want when your butterfly valves are not all the same, or when a fixed cover will not sit properly. Polypropylene.