Dowty Washer (Bonded Seal) Self Centralising Nitrile Stainless Steel 316

The Dowty Bonded Seal is a synthetic rubber sealing member that is bonded with heat and pressure to a zinc plated steel washer. The flexing action of the lips under pressure provides a positive and leakproof seal against a wide range of fluids at, depending upon size, pressures up to 20,000 psi (1380 bar). The Dowty Bonded Seal, in addition to eliminating leakage, reduces tooling, installation and maintenance costs. The face-to-face sealing they permit eliminates groove cutting or special machining and reduced bolting torque. Dowty Bonded Seals are supplied in quantity to large scale users in the aircraft, motor and electronics industries, and for specialised products ranging from navigational instruments to rock drilling equipment.  
 
Developed to eliminate the occurrence of leakage due to seal offset, the self-centring type of bonded seal has the additional benefit of pre-assembling on to threads with the consequent production line savings.