Side Entry Subs (Welded)

Circulating Subs
Crossover Subs
Drillable Lifting Subs
Drill Pipe Pup Joints
Kelly Saver Subs
Lift Nubin
Lifting Subs
Lower Kelly Valves
Side Entry Subs (Integral)
Side Entry Subs (Welded)
Upper Kelly Valves
image of side entry subs (welded)  - Downhole Oil Tools, Inc.
Side Entry subs are manufactured from AISI 4140/4145 alloy steel.

The side entry sub is manufactured with box by pin connections to match the drill pipe by a welded 2 1502 union side outlet.

When ordering, please specify:

  • Overall length
  • Sub OD
  • Sub Bore
  • Connection size