Jackbolt Type

• • REFINERY

  • Ethlylene Furnace
  • Decoking line
  • Steam & Vapor line
  • FCCU Fractionatorisolation (overhead & bottom line)
  • Catalyst service
  • Flare gas line

• • CHEMICAL PLANT

  • Reactor Blowdown
  • Chemical Cleaning isolation
  • Mixing lines
  • Regernation gas line
  • Filteration system
  • Loading station
  • Transfer line

• • OFFSHORE

  • FPSO
  • LNG ship
  • Shipboard lines
  • Vessel inlet
  • Inert Gas system

• • STEEL

  • Coke Oven Gas
  • Blast Furnace Gas

• • POWER PLANT

  • Coke Oven Gas

1) Before turning the handwheel to change the blind plate position, internal pressure of the valve must be drained and be sure no pressure(Zero).
2) Unlock locking device for turn to handwheel
3) To change the blind plate position, turn the handwheel clockwise until indicator reaches to “Open” mark.
4) When indicator is on “open” mark, change the blind plate position to open or close.
5) After change the blind plate position, turn the handwheel counter-clockwise until indicator reaches to “Close” mark to tighten the seat.
6) Lock locking device for can’t use ahourized person