Agitator Unbalanced Double Mechanical Seals

Best Agitator Unbalanced Double Mechanical Seals

LPS-231-U / LPS-235-U & LPS-241-B / LPS-245-B

LPS-231-U / LPS-235-U & LPS-241-B / LPS-245-B series are factory assembled with dynamically tested Agitator Unbalanced Double Mechanical Seals used with various types of equipments like a Mixer, Agitator, Vessel & Glass lined Reactors which are mixture and reaction various types of media. These seals are independent of direction of rotation. The bearing support to drive smoothly and protect the seal faces to loads of other equipment parts. These seals have Top, Side & Bottom entry type fitments is out-side of equipment, these seals are supplied with cooling water jacket & thermosyphon system which help to maintain cool environment around the seal faces, these seals are also required lubricant and quenching system. All parts are interchangeable, one can convert this series LPS-231-U/LPS-241-B to LPS-235-U/LPS-245-B by changing only the dynamic ring and the secondary seal, this principle is ideal for stock rationalization, these agitator seals are comfortable to use in wide range of application as below:

Material of Construction:

Seal Faces: (Dynamic & Stationary Ring)

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

Secondary Seal:

LPS-231-U: Viton, EPDM, Aflas,Silicon, Kalrez, TCV

LPS-235-U: PTFE, GFT, FEP, Grafoi

Hardware & Spring:

SS 316, SS 304, Carbon Steel, Hastelloy- B, Hastelloy- C, Monel, Alloy-20


  • Food products
  • Pharmaceutical products
  • Petrochemicals & its vapours
  • Light hydrocarbons & its vapours
  • General chemicals & its vapours

Agitator Unbalanced Double Mechanical Seals Characteristics:

  • Unbalanced / Balanced
  • Double acting
  • Cartridge Unit
  • Bearing arrangement
  • Independent of direction of rotation
  • Operated with pressurised buffer fluid

Operating Parameter:

  • Shaft diameter : 25 mm to 150 mm (1.0” to 6.0”)
  • Pressure : Up to 10 bar (kg/cm²)
  • Temperature : -20°C to 240°C
  • Shaft Speed : Up to 600 RPM
  • Barrier fluid pressure: Vessel pressure +1.5 bar

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