Fully adjustable, this lockout is designed to be attached to ball valves and completely prevents access to the valve during maintenance. The lockout consists of a large thin prong that can be fed through a valve; the user then slides the lockout along the prong, locks it into place and attaches a secure lockout padlock to fully isolate the system. Suitable for use with 0.6cm to 10.1cm size valves, on insulated pipes and on pipes that are within close quarters to other pipes, walls and ceilings. It is constructed from highly durable aluminium and steel to prevent damage due to corrosion and has extreme temperature protection up to 538°C.