E-mail: sales@worldrigsupply.com

832-474-4440 High Pressure Drilling Hoses, Choke Hoses & Fline Line Products

kelly hose

made in usa

Made in 2", 2-1/2" 3" 3-1/2" and 4" i.d with many end connection configurationsand in pressures up to 10,000 psi w.p. :
API 7K fsl2
Manufactured in the U.S.A.


Full line hoses and assemblies. Knowledgeable staff and friendly services. Email today for price quote

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kelly hose high pressure flexible lines



Kelly hose made to length at World rig supply.Kelly hoses are large inside diameter (3" to 4" i.d) high pressure flexible lines used to between the standpipe and the swivel. This flexible piping permits the kelly to be raised and lowered while drilling fluid is pumped through the drillstring. The simultaneous lowering of the drillstring while pumping fluid is very important to the drilling operation.

Made in 2", 2-1/2" 3" 3-1/2" and 4" i.d with many end connection configurationsand in pressures up to 10,000 psi w.p. Many in stock crated and ready for export.

  • Kelly Hose
    • API 7K fsl2
    • Reinforcement: Two high strength steel cables
    • Cover: Ozone, petroleum and abrasion resistance
    • Tube: Oil resistant for petroleum drilling fluids
    • End Fittings: API male nipples, threaded or buttweld hammer
    unions, unibolt, API flanges and other special connections.
    • Certification: API 7K
    • Maximum Length: 110 feet
    • Operating Temperatures: -22°F to 200°F (-30°C to 93°C)
    • Options: Available with S.S. armor and fire protection.
    Typical Application
    • Mud delivery hose, motion compensator hose, de-coking hose.
    • Oilfield, construction, mining and high performance
    industrial equipment.
    Grade D rotary and vibrator hose is manufactured with the highest quality material to handle the tough
    drilling applications of today’s industry.


Kelly Drilling Hoses with swaged coupling



API Spec. 7K FSL 1 / API Monogram

I.D. Working Pressure Test Pressure API Grade Safety factor O.D. Hose Body MBR storage MBR operation Weight of hose body
in psi bar psi bar - * WP mm m m kg/m
2.5" 5000 345 10000 690 D 2.5 111 0.6 0.7 15
3" 5000 345 10000 690 D 2.5 126 0.7 0.8 18
3.5" 5000 345 10000 690 D 2.5 140 0.8 0.9 21
4" 500 345 10000 690 D 2.5 160     24


Available with API N.P.T threads and/or Hammer Union connection welded and threaded also availaible with flanged ends 5m 10m, RTJ,hubs,unibolts.

Operating temperature: -30 to + 82°C
Maximum available length: 40 m
Production length tolerance: +/- 64 mm up to 6.4 m hose length or +/- 1%


Sales sales@worldrigsupply.com


World Rig Supply Houston Texas