Originally designed to replace copper washers in higher pressure systems, bonded seals are simple in construction but very reliable. Made up from an elastomeric ring bonded to a metal form (either circular, square or rectangle in shape); the metal disc resists the bursting forces and so limits any distortion of the elastomeric element.
Self-centring seals were developed to eliminate leaks due to the seal becoming offset; very similar to the bonded seal but with the additional benefit of pre-assembly on to the threads, reducing production line costs. The thin seal membrane offers little resistance during assembly.
For more detailed information on available references please contact email@example.com.