METAL BELLOW BALANCED SEALS

 

SM-91 Specially developed for high temperature ranges and sliding velocities. It insulate the flexible element from direct shaft vibration and promotes more positive sealing while significantly extending seal life. Each welded set of plates has a fixed axial movement along the shaft. Pressure capability of the standard seal can be enhanced by using this. It is mainly used in Petrochemical, Thermic Fluid & Refineries.


Hardware SS 316 / Alloy 20 / Hastelloy C
End fitting material SS 316 / Alloy 20 / Hastelloy C
Material of bellow Alloy 20 / Hastelloy C / AM 350 / SS 316
Seal faces  
Seal ring Carbon / SiC / TC
Mating ring SiC / TC
Secondary seal PTFE / Karlez / Flexible Graphite / Chemraz
Pressure Upto 20 kg/cm²
Temperature -70°C to 330°C
(Depending on elastomer)
Speed 4500 RPM

Salient Features :

  • Self cleaning, non-clogging construction.
  • Highly corrosion resistant.
  • Ability to handle abrasive media without separators or clean flushes.
 
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