Advantages of Bonded Seal
|1. Provides efficient cost to solve the sealing of bolt/thread|
|2. Can be used in various applications, i. E.: Threaded bolt, studs
and clearance holes|
|3. Available in different temperature ranges|
|4. Reliable to suit for high and low-pressure sealing|
|5. Metal washer prevents the elastomer from over compression and
|6. Available to suit for all thread sizes|
|7. Easy to assemble|
|8. Available to self-centralizing|
|9. Ability to pre-assemble|
What is BONDED SEAL?
Bonded Seals are also known as Dowty Seals or Dowty Bonded Washers. They are
high pressure seals which are used in the Mechanical, Hydraulic and
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
• 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.
The most common washer types are Mild Steel or Stainless steel.
Other more unusual metals can be supplied. Different combinations
of metal washer and rubber sealing elements can be produced.
Bonded Seals are available in a choice of materials including:
• Mild Steel.
• Stainless Steel.
We can supply both standard and Self Centering styles in the
• German Metric.
• French Metric.
Self Centering seals eliminate seal offset and simplify
installation. These are available in a range of Imperial Metric and
French Metric sizes. A variety of metals and sealing materials are
also available to suit your application.
These seals are readily available in Imperial sizes from 1/8 inch
to 3 inches. French and German Metric sizes form part of our
extensive stock. Please contact us for full sizing catalogue with material specifications table.
The elastomer Prevents lubricant leakage internally and avoids
water or the pollutant invasion from outside Environment.
The bonded seal is a metal washer with a vulcanized rubber insert
for use in high pressure applications where other means of sealing
are unsuitable. Bonded seals are now available in self centralising
form, which eliminates seal offset and makes for easier
Available in Imperial, German Metric and French Metric sizes and
various metals and sealing materials to suit your application.
Available Materials: Buna, Viton, Silicone, EPDM....other materials
TO PLACE AN ORDER OR TO CHECK STOCK LEVELS, PLEASE CONTACT US
1. Convenient: 24th Hours sales/After-sales Service online or on
2. Quality Assurance: We will discuss with you and supply you the
best quality comfortable to your market
3. Quick delivery: Time is money, we promise we always will deliver
the goods quicker than others
4. According to customers' drawing,customized specifications are
5. Low MOQ,small orders can be accepted.