BlueSeal spacer rings, black

The spacer ring is part of the BlueSeal restrained compression couplings and is used in pressurised PE water systems. It is available for pipe sizes 16 to 110 mm and forms part of a system rated for a working pressure of 16 bar. The ring is a component in polypropylene and is positioned between the seal and the grip ring inside the coupling, as part of the sealing system with a pre-lubricated double lip seal. It is available in black and blue versions and is ordered as a spare part or when servicing existing couplings. During installation, the pipe end is chamfered and cleaned, the nut is unscrewed to the outermost thread, and the pipe is turned in to the pipe stop before the nut is tightened. Final tightening is carried out using the dedicated installation tool according to the specified torque, which ranges from 7 Nm for the smallest sizes to 135 Nm for 110 mm.