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SmartFlow IG

Intelligent Seal Water Control System

The SmartFlow IG intelligent seal water control system automatically controls seal water flow. It is designed to be used with double-balanced seals. The Integrated SmartFlow IG has been designed for use with JCS2 seals, but can be adapted for use with other John Crane seal designs. For use with other seal designs, refer to John Crane engineered cartridge seals to check the water connection dimension details.



  • Compact and simple to install.
  • Based on field tests and laboratory experiments, this system saves up to 97% of seal water compared to flow meter regulated control systems.
  • Operation based on heat activated shape memory alloy device; automatically adjusts to new operating conditions.
  • No electrical power requirement.



230 psi(g)/16 bar(g)

Temperature Limits


Recommended Applications

  • Process Pumps
  • Other Rotating Equipment

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