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Internal Balanced Component Mechanical Seal

SMI

SMI Internal Balanced Component Mechanical Seal

Product Overview:
The SMI is a hydraulically balanced internal rotary single component mechanical seal suitable for use with a variety of stationary face arrangements. Designed for industrial pumps handling suspensions, slurries, and liquids, it features a non-shaft-fretting design to reduce maintenance and equipment overhaul costs. The smooth non-clogging profile ensures long seal life by preventing solids from damaging the spring and seal faces. Depending on condition, all First4Seals cartridge seals can be fully refurbished.

Key Features:

  • Internal rotary single component mechanical seal

  • Hydraulically balanced seal face reduces shaft and bearing load

  • Non-shaft-fretting design minimizes equipment wear

  • Smooth, non-clogging profile ideal for slurries and suspensions

  • Sizes from 18mm to 155mm (0.750" – 6.000")

  • Suitable for chemical, slurry, and general industrial applications

  • Fully refurbishable

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