Multi Spring Balanced Mechanical Seals


LPS-101-B series is multiple springs balanced Mechanical Seal specially designed for slurry applications which are being pumped high pressure. This seal has been developed to be use without modification in sleeve of unbalanced seal, the springs are protected from the fluid by means of dynamic O-Ring, and torque transmission to the seal ring is given by strong multiple drive pins. This seal is used in media containing solid particles, mining industry, chemical, water conditioning & wide range of application as below:

Material of Construction:

Seal Faces: (Dynamic & Stationary Ring)

Carbon, Ceramic (99.5%), Silicon Carbide, Tungsten Carbide & which are suitable for fluid

Secondary Seal:

Viton, Aflas, Kalrez, TCV, Silicon

Hardware & Spring:

SS 316, SS 304, Hastelloy-C, Alloy-20


  • Food industries
  • Hydrocarbons
  • Light sewage water
  • Light abrasive slurry
  • General & light chemicals

Seal Characteristics:

  • Balanced
  • Single acting
  • Stable drive pin
  • Inside mounting
  • Multi spring design
  • Independent of direction of rotation

Operating Parameter:

  • Shaft diameter : 19 mm to 100 mm (0.75” to 4.0”)
  • Pressure : Up to 25 bar (kg/cm²)
  • Temperature : -20°C to 180°C
  • Shaft Speed : Up to 3000 RPM

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