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  • Kelly Hose
  • Kelly Hose
  • Kelly Hose
  • Kelly Hose

Product parameters

•Certification: API 7K FSL2


Kelly drilling hoses are big inside diameter (3" to 4" ID) 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 drill string. The simultaneous lowering of the drill string 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 structures in pressures up to 10,000 psi w.p.


Kelly Hose

Material: Modified Nitrile

Size: 2- 1/2 - 4 inch

Imprint: Customized

• Reinforcement: Multiple high strength steel cables 

• Cover: Modified nitrile. Black. Specially designed wear resistant, corrosion resistant, cutting resistant,  oil resistant, weather resistant rubber.
• Tube: Oil resistant for petroleum drilling fluids
• End Fittings: API male nipples, threaded or butter weld hammer unions,  API flanges and other special connections.
• Maximum Length: 130 feet/40 meter
• 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 industry.

Kelly Drilling Hoses with swaged coupling

Kelly Hose

· API Spec. 7K

· Specification:

I.D.Working PressureTest PressureAPI GradeSafety factorO.D. Hose BodyMBR storageMBR operationWeight of hose body
inpsibarpsibar-* WPmmmmkg/m


 Full range of couplings are available, such as hammer unions, flanges, camlock, male thread etc.

Kelly Hose


Accessories such as safety clamps, hose lift eyes and stainless steel armor are available upon request.

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Contact Us
  • Tel. : +86 318 2883 888
  • Mob : +86 139 3183 6368
  • E-mail : manager@huiyahose.com
  • Wechat : +86 13931822727
  • WhatsApp : +86 13931836368
  • Viber : +86 139 3183 6368
  • Add. : East Development Zone, Jingxian County Hengshui City, Hebei Pr. China