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Seals for circulating pumps

171 Multiple Spring Mechanical Seal
  • 171AK Multiple Spring Mechanical Seal
  • 171C-171SK Double Mechanical Seal
  • 171C Mechanical Seal
  • 171CLK Mechanical Seal
  • 171S Mechanical Seal
  • 171SK-171CL Double Mechanical Seal
  • 171SK Mechanical Seal
  • 171 Multiple Spring Mechanical Seal

YL 171 Series

SKU : 171 Series

Basic Features

  • Structure: Single/Double End
  • Pressure: Medium Pressure Mechanical Seals
  • Speed: General Speed Mechanical Seal
  • Temperature: General Temperature Mechanical Seal
  • Performance: Wear and Corrosion
  • Standard: ISO3069, GB6556, DIN24960
  • Model NO.: 171 Series
  • Balance: Balanced
  • Specification: Inner Diameter: 25mm, 35mm, 45mm, 55mm, 60mm, 75mm

Product Detailed Description

YALAN 171 Series Single and Double Mechanical Seals for Industrial Pumps

Structural Features: single/double end, balanced, internal multiple springs, still structure, independent rotary direction, key transmission. The multiple springs makes the loads on the seal faces balanced. The still structure makes sure the springs are stable. This seal component has a brilliant performance for mediums that include particles and slurry with crystallized content. The springs are separated from the sealed mediums so that they will not be defected in short time. The life time of this seal is long and the seal is easy to be installed and with reliable performance.

Industrial Standards: ISO3069, GB6556, DIN24960

Scopes of Application: widely used in alkali and salt production, nonferrous metals production, petrochemical engineering, chemical fibering, paper making, chemical fertilizer, fermentation and sewage water treatment.

  • Operation Parameters:

    • Pressure: 1.6 MPa or less
    • Temperature: - 20 ~ 150 ºC
    • Linear Speed: 20 m/s or less


    • Rotary Ring Face: Carbon/SiC/TC
    • Stationary Ring Face: SiC/TC
    • Elastomers: FKM/EPDM/PTFE
    • Springs: SS304/SS316/HC-276
    • Metal Parts: SS304/SS316/SS316L/Titanium/HC-276

    Mediums: acid, alkali, petroleum, solvents, paper pulp, inorganic salt and chemical fertilizer.

    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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