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 No. 168, Xinxing Industrial Area of Ren County, Tiankou Town, Xingtai, Hebei Province 05154


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Plated Zinc Iron Stainless Steel Copper Metal Silicon Viton NBR

Bonded Seals
Bonded seals are metal washers with a rubber insert bonded to the inside diameter for use in high pressure applications
  • All size
  • GTI
  • Xingtai city,Hebei province, CHINA.
  • can customize
  • GTI
  • FREE
  • Manufacturer

It is the compression of the elastomeric part between the faces of the parts on either side of the bonded seal that provides the sealing action. 
The elastomeric material, typically nitrile rubber, is bonded by heat and pressure to the outer ring, which holds it in place.
This structure increases resistance to bursting, increasing the pressure rating of the seal.

Because the bonded seal itself acts to retain the gasket material,there is no need for the parts to be sealed to be shaped to retain the gasket.

This results in simplified machining and greater ease of use as compared to some other seals, such as O-rings.

Some designs come with an additional flap of rubber on the internal diameter to locate the bonded seal at the centre of the hole,

these are called self-centring bonded washers.


Product NameSelf-centring Bonded Dowty Seal  Flattening Washer
CategoryHydraulic seals, Pneumatic seals, customize seals


Bonded seal


Stainless Steel,Nitrile Rubber

High temperature, low temperature, high pressure, low pressure,

friction resistance

SizesStandard and customize
Temperature-45℃    +200℃
MiedumHydraulic oil,  anti-fire fluid, water, gas etc

excavators, loaders, graders, dump trucks, forklifts, bulldozers, scrapers, mining trucks,

cranes, aerial vehicles, garbage transfer vehicle, sliding cars, agricultural machinery,

logging equipment, aircraft, motor,electronics industries,etc.




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