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China 208 Mechanical Seal - Single End Face, Balance, Rubber Bellows | Suppliers & Factory Direct
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China 208 Mechanical Seal - Single End Face, Balance, Rubber Bellows | Suppliers & Factory Direct

Introducing the 208 series mechanical seal, a high-performance solution designed for pipeline pumps, sewage pumps, and clean water pumps. This single end, single spring, and unbalanced mechanical seal is ideal for various industrial applications, including pumps, compressors, valves, and reaction vessels. Manufactured by trusted suppliers in China, this compact and easy-to-install seal can be assembled back-to-back with two 108 type seals, offering versatility in material selection for end face combinations. Optimize your equipment performance with the reliability of our 208 series mechanical seal, produced by a leading factory dedicated to quality and innovation

    Product Material

    Static ring: graphite / silicon carbide / TC

    Dynamic ring: graphite / silicon carbide / TC

    Auxiliary sealing: Nitrile rubber / Ethylene rubber / Fluororubber

    Springs and other components: SS304, SS316

    Product Medium
    Water, sewage, oil and other weakly corrosive liquids
    Features
    • 1 High sealing performance: Made of high-quality materials, it has good wear resistance and corrosion resistance, ensuring minimal fluid leakage.
    • 2 Stable and reliable: A spring is installed between the moving ring and the stationary ring to maintain stable pressure of the seal during equipment operation, extending its use.
    • 3 Strong adaptability: It can be applied to various working conditions, such as high temperature, high pressure, high speed, etc., to meet the needs of different scenarios.
    • 4 Easy to maintain: The structure is simple, easy to disassemble and replace, which is conducive to reducing the maintenance cost of the equipment.
    208-1
    208-2
    208-3
    Frequently Asked Questions
    Q What materials are available for the static and dynamic rings?
    Both the static ring and dynamic ring are available in graphite, silicon carbide (SiC), and tungsten carbide (TC), allowing selection based on the specific application and fluid compatibility requirements.
    Q What types of auxiliary sealing materials are offered?
    Auxiliary sealing options include Nitrile rubber (NBR), Ethylene rubber (EPDM), and Fluororubber (FKM/Viton), covering a wide range of temperature and chemical resistance requirements.
    Q What media is this mechanical seal suitable for?
    This seal is designed for use with water, sewage, oil, and other weakly corrosive liquids, making it suitable for pumps and equipment across water treatment, industrial, and general fluid handling applications.
    Q Can this seal handle high-temperature or high-pressure conditions?
    Yes. The seal is designed with strong adaptability and can be applied to various demanding working conditions including high temperature, high pressure, and high-speed rotational environments, meeting the needs of diverse industrial scenarios.
    Q How does the spring mechanism contribute to seal reliability?
    A spring is installed between the moving ring and the stationary ring. This spring maintains consistent contact pressure between the sealing faces throughout equipment operation, compensating for wear and vibration to ensure long-term stable, leak-free performance.
    Q Is the mechanical seal easy to install and maintain?
    Yes. The seal features a straightforward and compact structure that simplifies disassembly, replacement, and routine inspection. This design significantly reduces downtime and overall maintenance costs for the equipment.