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Seals for sewage pumps

GR-SA Mechanical Seal for Grundfos Pumps
  • GR-SA Mechanical Seal Rotary
  • GR-SA Mechanical Seal for Grundfos Pumps
  • GR-SA-INFK Mechanical Seal
  • GR-SA-INFK Mechanical Seal Rotary
  • GR-SA-INFK Mechanical Seal
  • GR-SA Mechanical Seal for Grundfos Pumps



Basic Features

  • Structure: Single End
  • Pressure: Medium Pressure Mechanical Seals
  • Speed: General Speed Mechanical Seal
  • Temperature: General Temperature Mechanical Seal
  • Performance: Corrosion
  • Standard: DIN24960, ISO3069, GB6556, EN12756
  • Model NO.: GR-SA, GR-SA-INFK
  • Balance: Balanced
  • Specification: Inner Diameter: 28 mm, 38 mm, 50 mm, 65 mm, 70 mm, 80 mm, 90 mm, 100 mm

Product Detailed Description

GR-SA and GR-SA-INFK Mechanical Seal for Sewage Pumps

Structural Features: single end, multiple still springs with spring protection, balanced, independent direction of rotation, bolt transmission, non-cartridge seal. The springs are separated from the sealed mediums so that they will not be jammed. Multi spring structure makes sure the load on the sealing faces balanced. This seal component has a compact structure with easy installation and reliable performance.

Industrial Standards: DIN24960, ISO3069, GB6556, EN12756

Scopes of Application: mainly used in sewage pumps, immersible pumps, paper pulp pumps and other rotary devices for industries such as city construction, mining, power plants and sewage treatment. This component can work as an alternative to Gorman-Rupp and Grundfos original seal product GR-SA or replacing Type 891 mechanical seal.

  • Operation Parameters:

    • Pressure: 1.6 MPa or less
    • Temperature: - 20 ~ 120 ºC
    • Linear Speed: 15 m/s or less


    • Rotary Ring: Carbon/SiC/TC
    • Stationary Ring: SiC/TC
    • Elastomers: NBR/Viton/EPDM
    • Springs: SS304/SS316
    • Metal Parts: SS304/SS316

    Mediums: water, oil, sewage and other weak corrosive mediums.

    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

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