Definition and Purpose
Washer
- Primary Function: Distributes the pressure of bolts, nuts, or screws, protects surfaces, and prevents loosening or wear.
- Typical Applications: Mechanical assembly and fasteners.
- Materials: Metal (steel, copper, stainless steel), rubber (EPDM, silicone), nylon, etc.
- Characteristics:
Usually ring-shaped with a central hole.
Designed to bear mechanical load, not seal fluids or gases.
Gasket
- Primary Function: Seals the gap between two surfaces to prevent leakage of liquids or gases.
- Typical Applications: Pipes, pumps, valves, engines, and other sealing systems.
- Materials: EPDM, NBR, silicone, PTFE, composite rubber, etc.
- Characteristics:
Various shapes: round, square, or complex forms.
Mainly used for leak prevention, less mechanical load-bearing.
Products Description
| Feature | Washer | Gasket |
|---|---|---|
| Main Function | Distributes pressure, prevents loosening, protects surfaces | Seals gaps, prevents leakage |
| Load Bearing | Mechanical load | Mainly sealing pressure |
| Shape | Ring with a central hole | Round, square, or custom shapes |
| Material | Metal, rubber, nylon, etc. | Rubber, PTFE, composite materials, etc. |
| Application | Bolts, nuts, screws | Pipes, pumps, valves, engines |
Examples of Use
Washer: Placed under a nut or bolt to protect Gasket: Installed between pipe flanges to
the surface and distribute load. prevent water, oil, or gas leakage.
Conclusion
Easy way to remember:
- Washer = Mechanical protection
- Gasket = Sealing
Choosing the correct component based on its function can prevent leaks, mechanical damage, reduce costs, and improve reliability.
At Best Seal, we offer a wide range of high-qualitywashers👉
and gaskets👉suitable for various industries, including automotive, machinery, and industrial applications.
Contact US
Xiamen Best Seal Imp and Exp Co.,Ltd
Tel: +86-592-5782315
Mob: +8618950159396
Email: yunying2@bestsealhk.com
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
