Bonded Seals

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Bonded Seals are also known as Dowty Seals or Dowty Bonded Washers.

Bonded seals are commonly known as Dowty Seals. They provide reliable and dependable resistance to high pressure applications. Bonded seals are particularly suitable for sealing under the heads of bolts and threaded components, for Pipe Couplings and a wide range of connector applications where a perfect face-to-face contact is required for sealing gases, oils, and other fluids.

These seals consist of a rubber sealing element that is bonded to the inner wall of a metal washer. They are used in applications where high pressures demand a higher sealing capacity than can be obtained with copper washers.

Our Mild Steel / Stainless Steel range offer the highest burst pressure resistance. For materials see our material properties page.

Bonded seals are high pressure seals which are used in the Mechanical, Hydraulic and Pneumatic sectors.

Bonded Seals were originally designed to replace copper-type washers that are used in high-pressure systems. They comprise of a metal washer and an elastomeric ring which is bonded inside the diameter. The metal washer prevents over-compression and limits deformation of the elastomeric ring.

CHARACTERISTICS

Ideal Pressure Gasket.
Reliable sealing at high & low pressure.
High & low temperature capability.
Reduced bolt torque with no loss of tightening loads.
Metal ring prevents rubber compression.

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