SS304 Stainless Steel Coated Viton Bellow Mechanical Seal

A Viton® bellows mechanical seal is a high-performance sealing component combining a flexible bellows structure (typically metal or PTFE) with Viton (fluoroelastomer) secondary sealing. These seals are widely used in rotating equipment like pumps and agitators, particularly in chemical, petrochemical, and high-temperature environments.

Bellows

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  Material: Can be welded metal (e.g., Hastelloy, Inconel, stainless steel), PTFE, or rubber.

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  Function: Acts as both spring and secondary seal, compensating for shaft misalignment and thermal expansion.
  

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     Primary Sealing Faces

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       Typically durable materials such as silicon carbide (SiC), carbon, or tungsten carbide.

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     Secondary Seal (O-ring or elastomer)

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       Made from Viton, chosen for its excellent chemical resistance and broad temperature range.
       

       \Key Advantages\

        

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         Corrosion & Chemical Resistance:
         Viton seals resist hydrocarbons, acids, solvents, and aromatic compounds, making them ideal for aggressive fluids.

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         Wide Operating Range:

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           Bellows: Designed for temperatures up to 260 °C (with metal alloys like Hastelloy).

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           Viton: Performs from approximately −20 °C to +200 °C (some grades maintain integrity up to +250 °C).

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         Axial Flexibility:
         Bellows accommodate movement, vibration, and shaft deflection without compromising seal integrity.