What is the price of the AP7K rotary hose?
In the treacherous world of petroleum drilling, a single hose can mean the difference between life and disaster. Letone's 4"×60' GRADE D Rotary Drilling and Vibrator Hose (5000 PSI WP) equipped with 4" FIG 1502 MXF integral union fittings is the ultimate weapon engineered for the harshest downhole conditions.
Hardcore Specifications
|
Parameter |
Value |
|
Inner Diameter (I.D.) |
4" (102mm) |
|
Length |
60' (18.3m) |
|
Pressure Rating |
GRADE D — 5000 PSI (34.5 MPa) |
|
Working Pressure (W.P.) |
5000 PSI |
|
Test Pressure (P.P.) |
7500 PSI |
|
Minimum Burst Pressure |
12500 PSI |
|
Fitting Type |
4" FIG 1502 MXF (Integral Union) |
|
Reinforcement |
4 plies of high-tensile super-flexible steel wire spiral |
|
Inner Tube |
NBR / HNBR / UPE / PTFE (customizable) |
|
Outer Cover |
Abrasion & weather-resistant synthetic rubber |
|
Temperature Range |
-20℃ ~ +121℃ (-4℉ ~ +250℉) |
|
Standards |
API Spec 7K FSL 1 / FSL 2, ABS Type Approval |
Per Letone's official datasheet, the 4" GRADE D configuration features a minimum bend radius of 1200mm and weighs approximately 16.0 kg/m — totaling roughly 293kg for the full 60' length. The full-flow (equal-bore) design eliminates turbulence at the fitting junction, dramatically reducing inner-layer friction and extending service life.
Why Letone API 7K Rotary Hose?
Letone Technology (Stock Code: 920225, Beijing Stock Exchange) is a National-Level Specialized, Refined, Distinctive & Innovative "Little Giant" Enterprise with a CNAS-certified national laboratory and the "One Institute, Four Research Centers" ultra-high-pressure fluid innovation network. Their API 7K rotary hoses carry:
✅ API Q1 Quality Management Certification
✅ API 7K & API 16C Official Monogram Authority
✅ ABS (American Bureau of Shipping) Type Approval
✅ Lloyd's Fire Resistance Certification
✅ MSHA / MA / KA Certification
Exported to 30+ countries including the USA, Mexico, Brazil, and South Africa, Letone stands as a formidable global competitor in oilfield rig rotary hose systems.
GRADE D Advantage at a Glance
|
Grade |
W.P. |
Application |
|
Grade A |
1500 PSI |
Shallow operations |
|
Grade B |
2000 PSI |
Medium depth |
|
Grade C |
4000 PSI |
Deep drilling |
|
Grade D |
5000 PSI |
Ultra-deep / HP mud pumping |
|
Grade E |
7500 PSI |
Extreme conditions |
The 5000 PSI ultra-high pressure, paired with 4" FIG 1502 MXF unions, delivers zero-leakage, easy-assembly flexible connections between the standpipe and top drive / rotary table, and between the pump and standpipe — effectively reducing BOP open/close time and safeguarding personnel and equipment.
Applications
HP mud pumping in oilfield drilling & workover
Motion compensator hose on offshore drilling platforms
Directional drilling & negative pressure pulse operations
Geological exploration & coal mining water transfer
️ Cementing operations
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