Hongruntong Marine (Beijing) Co., Ltd
                                                                                                           
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API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High Tensile Steel Wire Reinforcement

Price Negotiable
Price: $63-$852
MOQ: 1
Delivery Time: 5-7 Work Days
Brand: Hongruntong Marine
Product Description
High Pressure Drilling Hose - Ultra Pressure Capacity, Anti-Fatigue Construction, Stable Performance
Product Overview

The Drilling Rotary Hose is a specialized high-pressure flexible connection engineered to support continuous fluid circulation within rotary drilling systems operating under severe mechanical and hydraulic conditions. Constructed using a multi-component design with wear-resistant inner tube, multiple layers of high-strength steel wire reinforcement, and protective outer cover, this hose achieves optimal balance between flexibility and structural rigidity while maintaining pressure integrity throughout extended operational cycles.

Case Study: Land-Based Drilling Expansion Project in Saudi Arabia

A drilling contractor engaged in an oilfield expansion program in Saudi Arabia required high-pressure rotary hose assemblies capable of supporting intensive drilling schedules across multiple land-based rigs. The operating environment presented technical challenges including elevated ambient temperatures, continuous equipment vibration, prolonged drilling cycles, and frequent pressure fluctuations.

Following implementation, the hoses demonstrated stable hydraulic performance throughout extended drilling campaigns. The reinforced structure effectively absorbed vibration-related stress while maintaining reliable sealing integrity under fluctuating pressure conditions, resulting in measurable reductions in maintenance-related downtime and improved drilling productivity.

High Pressure Drilling Hose installation in Saudi Arabia drilling operation Drilling Rotary Hose performance testing in field conditions
Technical Specifications
Name Rotary Drilling Hose
Tube Modified nitrile, black, specifically engineered for handling abrasive, corrosive substances, and oil drilling mud
Reinforcement Composite construction featuring multiple layers of textile fabric and steel cable, with rubber between cable layers for enhanced performance
Cover Black modified nitrile with specially engineered ultra-abrasion cover for exceptional resistance to abrasion, corrosion, cutting, gouging, oil, and weather conditions
Coupling Swaged couplings, full range available including hammer union, flanges, hubs, male thread etc.
Certification API 7K-0376/ISO14693
Temperature -40°C to +82°C (-104°F to +180°F)
Options Accessories such as safety clamps and hose lift eyes available upon request
Test Each hose tested at 22500psi for 15 minutes. Pressure test graph, test certificate and letter of conformance issued for each hose
Model Specifications
Model I.D. (inch) I.D. (mm) O.D. (mm) W.P. mpa(psi) T.P. mpa(psi) Weight (kg/m) B.R. (mm)
HMRDH-Grade A 1 1/2 38 51 11(1500) 22(3000) 2.19 560
HMRDH-Grade A 2 51 65 11(1500) 22(3000) 3.03 900
HMRDH-Grade A 2 1/2 64 78 11(1500) 22(3000) 3.95 1200
HMRDH-Grade B 1 1/2 38 52 14(2000) 28(4000) 2.39 560
HMRDH-Grade B 2 51 66 14(2000) 28(4000) 3.25 900
HMRDH-Grade B 2 1/2 64 79 14(2000) 28(4000) 4.37 1200
HMRDH-Grade B 3 76 98 14(2000) 28(4000) 7.76 1200
HMRDH-Grade B 3 1/2 89 113 14(2000) 28(4000) 9.95 1300
HMRDH-Grade B 4 102 127 14(2000) 28(4000) 12.43 1400
HMRDH-Grade B 5 127 153 14(2000) 28(4000) 15.25 1500
HMRDH-Grade B 6 152 178 14(2000) 28(4000) 18.71 1600
HMRDH-Grade C 1 1/2 38 55 28(4000) 56(8000) 3.65 560
HMRDH-Grade C 2 51 69 28(4000) 56(8000) 5.15 900
HMRDH-Grade C 2 1/2 64 88 28(4000) 56(8000) 7.86 1200
HMRDH-Grade C 3 76 105 28(4000) 56(8000) 13.12 1200
HMRDH-Grade C 3 1/2 89 121 28(4000) 56(8000) 16.79 1300
HMRDH-Grade C 4 102 137 28(4000) 56(8000) 21.7 1400
HMRDH-Grade C 5 127 164 28(4000) 56(8000) 28.46 1500
HMRDH-Grade C 6 152 197 28(4000) 56(8000) 44.64 1600
HMRDH-Grade D 2 51 73 35(5000) 70(10000) 6.46 900
HMRDH-Grade D 2 1/2 64 91 35(5000) 70(10000) 10.75 1200
HMRDH-Grade D 3 76 107 35(5000) 70(10000) 14.35 1200
HMRDH-Grade D 3 1/2 89 123 35(5000) 70(10000) 18.77 1300
HMRDH-Grade D 4 102 139 35(5000) 70(10000) 23.16 1400
HMRDH-Grade D 5 127 171 35(5000) 70(10000) 38 1500
HMRDH-Grade D 6 152 200 35(5000) 70(10000) 48.43 1600
HMRDH-Grade E 2 51 80 52(7500) 104(15000) 10.37 1000
HMRDH-Grade E 2 1/2 64 101 52(7500) 104(15000) 17.88 1200
HMRDH-Grade E 3 76 120 52(7500) 104(15000) 24.45 1200
HMRDH-Grade E 3 1/2 89 135 52(7500) 104(15000) 29.33 1300
HMRDH-Grade E 4 102 148 52(7500) 104(15000) 34.24 1400
HMRDH-Grade E 5 127 189 52(7500) 104(15000) 55.39 1500
HMRDH-Grade F 2 51 82 70(10000) 105(15000) 11.81 1000
HMRDH-Grade F 2 1/2 64 104 70(10000) 105(15000) 20.46 1300
HMRDH-Grade F 3 76 129 70(10000) 105(15000) 32.74 1300
HMRDH-Grade F 3 1/2 89 144 70(10000) 105(15000) 39.43 1400
HMRDH-Grade F 4 102 158 70(10000) 105(15000) 45.73 1500
HMRDH-Grade G 2 51 92 105(15000) 157(22500) 17.37 1000
Key Features
  • Advanced Vibration Absorption Capability - Flexible elastomeric layers and strategically configured reinforcement systems dissipate vibration energy, reducing stress transfer and improving component longevity
  • Optimized Internal Flow Stability - Precision-engineered inner tube maintains consistent flow passage, minimizing turbulence and pressure variation during fluid transmission
  • Enhanced Sealing Reliability - Structural configuration maintains dimensional consistency under pressure loading, improving sealing performance and reducing leakage likelihood
  • Broad Fluid Compatibility - Internal rubber formulation accommodates various drilling fluids commonly used in industrial drilling operations
Applications
  • Oil and Gas Drilling Fluid Circulation Systems - Critical connection within drilling fluid circulation networks requiring reliable pressure management and continuous fluid transfer
  • High-Dynamic Industrial Pumping Systems - Suitable for applications involving repetitive pressure fluctuation, vibration exposure, and continuous fluid movement
  • Energy Infrastructure Development Projects - Supports drilling and fluid handling operations where operational reliability and hydraulic stability are critical
Why Choose Hongruntong Marine
  • Specialized Hose Engineering Knowledge - Industry experience combined with engineering-based product development for demanding industrial environments
  • Customization-Oriented Manufacturing - Custom solutions covering dimensions, reinforcement configurations, pressure classes, end fittings, and material selections
  • Comprehensive Quality Verification - Systematic inspection procedures, pressure verification testing, dimensional control, and finished-product performance evaluation
  • Responsive Technical Support Capability - Engineering personnel provide technical consultation throughout project planning, product selection, and after-sales support
Frequently Asked Questions
  • What drilling fluids are compatible with the Drilling Rotary Hose?
    The hose is compatible with a wide range of drilling fluids, including water-based mud systems and many commonly utilized industrial drilling media. Fluid compatibility should be verified for specific chemical formulations.
  • How does the hose perform under continuous vibration conditions?
    The hose is engineered with vibration-absorbing structural elements that help reduce stress concentration and maintain operational stability during prolonged exposure to equipment-generated vibration.
  • Can customized connection types be supplied?
    Yes. Various connection configurations, flange arrangements, and fitting specifications can be provided to ensure compatibility with existing drilling equipment.
  • What inspections should be performed during service?
    Routine inspections should include examination of the outer cover, coupling areas, pressure performance, and any visible signs of wear, deformation, or mechanical damage.
  • Does the hose require special transportation procedures?
    The hose should be transported using methods that prevent excessive bending, impact damage, and contamination. Proper handling helps preserve structural integrity before installation.
High Pressure Drilling Hose close-up showing construction details Drilling Rotary Hose connection and coupling assembly Industrial application of High Pressure Drilling Hose in operation Quality testing and inspection of Drilling Rotary Hose

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Hongruntong Marine (Beijing) Co., Ltd
Location C1-7, Xuhui Center, Jinguan North 2nd Street, Shunyi District, Beijing City, P.R. China 101300
Contact Person William Lau

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