Hydraulic Decoking Systems Drill Stem for coke drum cutting in delayed coking units
Introduction Features Literature

Drill Stem Hydraulic Decoking Systems designed for efficient coke removal in petroleum processing applications.Hydraulic Decoking Systems Drill Stem

Brand

Description

Flowserve Drill stems carry torque from the rotary joint to the cutting tool together with water. Extremely durable and with a side load strength four times higher than similar welded drill stem designs are Flowserve threaded drill stems.

Flowserve Drill Stem Hydraulic Decoking Systems  in Mechanical Decoking Applications

Flowserve threaded drill stems are extremely durable for decoking service with a side load strength four times greater than comparable welded drill stem designs.

  • Applications:
    Petroleum Production and Refining, Decoking

Drill Stem Hydraulic Decoking Systems Features and Benefits

  • Fabricated from ASTM A-519 Gr. 4140 steel tubing in 6-meter (20-foot) sections
  • Hot process expansion maintains wall thickness of tube through the female threaded end and reduces stress in the area of thread engagement
  • API 5 CT 6-5/8 in Extreme-Line threads
  • Heat treated for maximum strength
  • Swaged female ends to maintain thickness throughout

Specifications

  • 7-inch OD x 3/4–inch wall thickness
  • Heat treated to Rc 29-37
  • Multiple end attachment options for both rotary joint and cutting tool
    • Compact flange
    • 3000 lb and 5000 lb unibolt couplings with integral threads
    • 1500 lb RTJ, 2500 lb RTJ and 2500 lb flange connections