O-ring? 150 mm De Dietrich S100553

This O-ring with a 150 mm outer diameter is a large sealing ring used in boiler and burner assemblies where wide flanges or covers need a reliable seal. It is commonly applied in heating equipment components such as sight glass flanges or access panels. The O-ring's material withstands high temperatures and pressures, making it suitable for gas burner parts and boiler maintenance tasks that require leak-free operation.