RSD Gate Valve Lockout Donut Devices are designed to lock out gate valves by opening around a hinge on the side. They securely fit over round handles, allowing the cover to rotate freely during operation. These devices require more space around the handle compared to collapsible gate valve lockouts and are ideal for situations where the handle is easily accessible from all sides. The RSD Gate Valve Lockout Donut Device features a hinged configuration, designed for hand wheel handles, with a red color indication, suitable for hand wheel diameters ranging from 1 inch to 2-1/2 inches, and capable of accommodating handle thicknesses up to 1.5 inches, made of polypropylene material with an outer diameter of 3.12 inches, compatible with padlock shackle diameters of up to 3/8 inch, allowing for a maximum of three padlocks, with an overall width of 4.72 inches and a height of 1.41 inches, boasting resistance to chemicals and impacts, and compliant with ANSI Z244 and OSHA 29 CFR 1910.147 standards.