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Spring pusher seals

Type 523 Mechanical Seal
  • Type 523 Mechanical Seal Rotary
  • Type 523 Mechanical Seal

YL 523

SKU : 523

Basic Features

  • Structure: Single End
  • Pressure: High Pressure Mechanical Seals
  • Speed: High Speed Mechanical Seal
  • Temperature: High Temperature Mechanical Seal
  • Performance: High Pressure
  • Standard: DIN24960, ISO3069, GB6556
  • Model NO.: Type 523
  • Balance: Balanced
  • Specification: Inner Diameter: 18 mm to 120 mm

Product Detailed Description

523 Mechanical Seals for Chemical Centrifugal Pumps, High-temperature Pumps, Vacuum Pumps and Compressors

Structural Features: single end, multiple springs, balanced, independent direction of rotation, drive sleeve transmission. This component has a compact structure with small axial dimension and equal force on the sealing surface.

Industrial Standards: DIN24960, ISO3069, GB6556

Scopes of Application: mainly used in chemical centrifugal pumps, high-temperature pumps, vacuum pumps, and compressors for industries such as chemical processing, refrigeration, oil refining, petrochemical engineering, sewage treatment, electricity generation, papermaking, and pharmacy.

  • Operation Parameters:

    • Pressure: 3.0 MPa or less
    • Temperature: - 20 ~ 200 ºC
    • Linear Speed: 20 m/s or less


    • Rotary Ring: Carbon/SiC/TC
    • Stationary Ring: SiC/TC
    • Elastomers: NBR/EPDM/Viton/Aflas/PTFE/FFKM
    • Springs: SS304/SS316/HC-276
    • Metal Parts: 410S/SS304/SS316/SS316L/Hastelloy

    Mediums: oil, water, amorphism acid, alkali, salt, and organic solvents.

    Customization: Changes of materials for getting other operating parameters are possible. Contact us with your requirements.


YALAN Seals Global
Anhui, China
21st Floor, Lanjing International Tower
Yaohai, City of Hefei

+86 551 6428 7402

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