The Bonded seal, also called a Dowty Washer is a rectangular-section metal washer, with a trapezoidal shaped ring of vulcanised rubber bonded to the inside. Both the washer and the rubber material can be selected to suit a given application. The bonded seal can replace copper washers for use in high pressure environments.

PROFILE
       
               

PRODUCT ADVANTAGES
•A cost-efficient solution for bolt/thread sealing
•Can be pre-assembled
•Available in different temperature ranges
•Suitable for sealing under heads of bolts and screws
•Easy installation
•Reliable and suitable for high and low-pressure sealing

APPLICATION
•Hydraulic environments
•Pneumatic environments
•General industrial applications

INSTALLATION
Bonded Seals are easily installed onto a fastener. To install, simply push the seal onto the fastener with a slight twisting motion. Once a Bonded Seal is installed it will centre itself on the fastener – providing an even sealing force around the entire circumference of the fastener. If a Bonded Seal is carefully installed and removed from a fastener, it can be reused. However, before reusing a Bonded Seal be sure to check it for any damage to the rubber part.

NOTES
For special applications, both the metal and the rubber parts can be delivered in other materials and designs.