Prevent unauthorized users or operators of valves in piping systems with Valve Lockouts. Valve Lockouts eliminates controllers from being tampered with and causing serious hazards. Rugged, hinged Valve Lockouts provide a convenient way to quickly ensure your valves are protected. Secure Valve Lockouts with padlocks (sold separately). Keep valves from being turned with unique gull-wing designed Stopout® Ball Valve Lockout. Stop unauthorized people from having access to your trailer by blocking access to the emergency brake line with Stopout® Trailer-Lock Glad Hand Lockout. Use Stopout® Versatile Pneumatic Lockout devices to lock up to seven devices. Use a variety of Valve Lockouts to securely lockout ball valve, cylinders, gate valves, glad hands, and pneumatic at your facility.