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The TUI is a general purpose mechanical seal with a wide range of applications. It is designed to operate with cold and hot water, oils, fuels, mild chemicals and other liquids contaminated with solid particles.

  • Balanced
  • Wave spring
  • Dual directional
  • Spring isolated from medium



  • General service
  • Process Pumps
  • Clean to Light slurry
  • Water/Wastewater
  • Irrigation
  • Food and Beveridge
  • Pulp and Paper

Application Form

Operating Range

  • Pressure Max: 300psig (21 bar)
  • Temperature Range: -40F-400F (-40C-204C)
  • Max Speed: 5000 fpm (25 m/s)

Standard Materials

  • Seal Faces : TC, Carbon, Silicon Carbide.
  • O-Rings : FKM, EPDM, Nitrile, Aflas, FFKM.
  • Springs: Hastelloy C
  • Metallurgy*: 316SS

* Hastelloy C, Alloy 20 and Titanium available upon request.