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Oct. 23, 2023
What Are Metric Metal-Bonded Sealing Washers?
Metric high-pressure metal-bonded sealing washers (also known as bonded seals) are specialized sealing components designed to prevent leakage of liquids and gases in mechanical systems.
They combine:
A metal ring for structural strength
An elastomer sealing element for tight sealing
Due to their reliable sealing performance, they are widely used in industrial machinery, hydraulic systems, automotive applications, and high-pressure environments.

Core Functions of Metal-Bonded Sealing Washers
1. Leak Prevention
The primary function is to ensure a leak-free sealing interface, even under:
High pressure
Temperature fluctuations
Mechanical vibration
This guarantees safe and stable operation of the equipment.
2. Reduced Resistance & Improved Efficiency
Unlike poor sealing solutions that increase drag, these washers:
Minimize resistance at connection interfaces
Improve fluid flow efficiency
Reduce energy loss
3. High-Pressure Resistance
Designed for demanding environments, they:
Withstand high-pressure loads
Maintain sealing integrity
Ensure system reliability in hydraulic and fluid systems
4. Wear Protection
By reducing direct surface contact, they:
Minimize wear and friction
Protect sealing surfaces
Extend equipment lifespan
Static vs Dynamic Sealing Applications
Static Sealing
Used in fixed, non-moving connections, such as:
Threaded fittings
Flange joints
Function:
Prevent leakage at stationary interfaces
Dynamic Sealing
Used in moving or rotating components, such as:
Rotating shafts
Moving mechanical assemblies
Function:
Maintain sealing performance during motion
Material Classification of Sealing Washers
1. Rubber Seals
Flexible and adaptable
Suitable for general-purpose sealing
Widely used in automotive and machinery
2. Metal Seals
High strength and durability
Ideal for high-pressure, high-temperature environments
Used in extreme industrial conditions
3. Plastic Seals
Materials such as PTFE (Teflon) or PVC
Excellent chemical resistance
Suitable for corrosive environments

Key Specifications and Technical Parameters
Selecting the correct sealing washer requires understanding the following parameters:
1. Outer Diameter (OD)
Defines the contact area between sealing surfaces and ensures proper coverage.
2. Inner Diameter (ID)
Determines compatibility with bolts, screws, or pipe fittings.
3. Cross-Section Thickness
Affects:
Compression performance
Sealing efficiency
4. Compression Deformation
Indicates how the elastomer compresses under load, directly impacting sealing performance.
5. Hardness
Measured based on material properties:
Softer materials → better sealing
Harder materials → higher durability
6. Tensile Strength
Represents resistance to:
Shear forces
Mechanical stress
7. Durability
Defines performance under:
Pressure cycles
Temperature changes
Vibration conditions
Industrial Applications
Metric metal-bonded sealing washers are widely used in:
Hydraulic systems – valves, fittings, connectors
Automotive industry – engines, fuel systems
Industrial machinery – fluid sealing systems
Aerospace & energy sectors – high-performance sealing environments
Chemical processing – corrosion-resistant sealing
How to Choose the Right Sealing Washer
To achieve optimal performance, consider:
Material compatibility with fluid and environment
Pressure and temperature requirements
Correct size (OD, ID, thickness)
Application type (static or dynamic sealing)
Proper selection ensures:
Long-term reliability
Reduced maintenance costs
Improved system efficiency
Conclusion
Metric high-pressure metal-bonded sealing washers are essential components in modern industrial sealing systems. Their ability to provide leak-proof, durable, and efficient sealing makes them indispensable across multiple industries.
Understanding their functions, materials, and specifications allows engineers and buyers to make more informed and cost-effective decisions.

Contact Us
If you are looking for high-quality metal-bonded sealing washers or customized industrial fastening solutions, feel free to contact us:
Email: adelajonly@gmail.com
Website: https://www.juxinfasteners.com
We provide OEM manufacturing, engineering support, and global supply solutions for industrial applications.
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Tel.:
+86 020 8621 0320
+86 020 3121 6067
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