Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of nitrile bond to metal anti-extrusion ring in China. If you're going to buy nitrile bond to metal anti-extrusion ring made in China, welcome to get more information from our factory. We also accept customized orders.
Hangzhou Bright Rubber Plastic Products Company produce many anti-extrusion rings as per the drawings or samples.
Introduction
Anti-extrusion rings also called a backup ring, is a rigid component used with O-rings and seals to prevent them from being forced into gaps under high pressure or thermal stress, which causes premature failure. It acts as a support, preventing the soft seal material from deforming into the clearance (extrusion gap) between mating parts, especially in dynamic or high-pressure applications, improving sealing reliability and extending seal life.
How it works
Provides support: The ring fills the extrusion gap, stopping the O-ring from squeezing into it when pressure is applied.
Resists pressure: It helps seals perform in high-pressure systems (over 100 bar) and withstand pressure spikes.
Maintains shape: It holds the seal in its proper place, even with variable clearances or temperature changes.
When it's used
High-pressure hydraulic/pneumatic systems.
When clearance gaps are large or inconsistent.
In dynamic applications (like pistons) and static seals.
With high temperatures that can soften seals.
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