Delayed & Flexi – Coking Unit

Improved Reliability for Critical Drum Isolation Valves

  • ValvTechnologies’ integral seat design eliminates dual leak paths and areas for coke deposits. Zero-class VI isolation capabilities, delivers operational safety and reliability in drum operations
  • Inconel Belleville seat spring, optimally loads the ball to the seat, to provide positive shutoff and prevention coke deposits in these areas.
  • Chromium Carbide cermets overlay on ball and seat contact area, extends shutoff requirements and protects major components from cyclic /erosive wear. The average repair cost is 25-30% cost of a new valve, due to this protection
  • Continuous steam purge design prevents eventual coke buildup, delivering consistent valve torque over a four – six year shutdown interval.
  • ValvTechnologies’ robust severe service ball valve is designed to perform in extreme erosive and high temperature refining processes
  • Excellent mean time between major repair/failure to meet shutdown interval expectations
  • The seat faces provide a scraping action to eliminate the migration of coke fines into seat faces delivering excellent “mean time between major repair/failure
  • Low emission, high temperature packing with Inconel Belleville washers, exceeds fugitive emission guidelines

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Engineered to Industry Standards

  • Tested and certified to API 607 Revision 6 Fire Safe Standard
  • Tested and certified to TA Luft and ISO 5804 Fugitive Emission Standards
  • Exceeds requirements of API 598 and FCI 70.2 Testing Standards
  • Full PMI of all components
  • Meets Global Automation Standards including
    • ANSI
    • ATEX
    • GOST
    • UIL

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