General description The John Guest Speedfit 22mm Angle Ball Valve is a service valve designed to isolate the supply to the underfloor heating (UFH) manifold and control pack. It connects the main heating flow and return pipe to the mixing valve, enabling safe isolation of the supply for maintenance purposes. Its angle design allows for installation in both vertical and horizontal pipe arrangements. Technical specifications Material: Durable DZR brass with nickel plate finish Connection type: JG Speedfit push-fit connections Size: 22mm Installation Fast and simple installation with push-fit connections