Retractable Center Feed Injection Device


Side Feed Entry, Bottom Feed Results

DeltaValve’s retractable center-feed injection device was developed to combine the benefits of traditional bottom center feed with the advantages of side-feed entry.  This technology creates uniform, centered flow channels which reduce the rate of temperature change at the drum wall, reducing overall coke drum stresses, top head blowouts, and premature drum failure.

Key Advantages
  • Facilitates side feed drum entry
  • Flow channeling up the center of the coke drum
  • Reduced coke drum stress, warping, and bulging
  • Reduced hot-spots, top head blowouts, and eruptions
Physical/Technical Attributes

Retractable Center Feed Injection Device

MetallurgyBody: ASME SA217 GrC12
Bonnet: ASME SA387 Gr22
Sizes6—18 inches (in 2 inch increments)
Weight8000—25000 lbs.
ActuationHydraulic, electro-hydraulic, electric
Interlocks / Controls / HPUEngineered to plant specifications
Positive LockoutLock pin (hydraulics), Gearbox lock pin (electric)
MountingBolted to transition spool inlet feed line, spring-can supported
Purge MediaSteam
Temp/Pressure Rating950OF @ 300 psi (18”)
950OF @ 380 psi (16” and smaller)
Application Photos