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Hongruntong Marine (Beijing) Co., Ltd

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China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High
China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High

  1. China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High
  2. China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High
  3. China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High
  4. China API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High

API 7K Certified Rotary Drilling Hose with 35-75 Mpa Working Pressure and High

  1. MOQ: 1
  2. Price: $63-$852
  3. Get Latest Price
Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability 1266 Pcs Per Month
Delivery Time 5-7 Work Days
Packaging Details Wooden Pallets, Wooden Box
Product Name Rotary Drilling Hose
Material Natural Rubber
Reinforcement High Tensile Steel Wire
Cover High Quality Synthetic Rubber
Working Pressure 35 Mpa - 75 Mpa
Connnection type Hammer Union / Flange
Color Black
Machine Type Drilling Equipment
Application Petroleum Base Hydraulic Fluids
Warranty 3 Years
Brand Name Hongruntong Marine
Model Number HM-RDH9
Certification ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram Supply Ability 1266 Pcs Per Month
Delivery Time 5-7 Work Days Packaging Details Wooden Pallets, Wooden Box
Product Name Rotary Drilling Hose Material Natural Rubber
Reinforcement High Tensile Steel Wire Cover High Quality Synthetic Rubber
Working Pressure 35 Mpa - 75 Mpa Connnection type Hammer Union / Flange
Color Black Machine Type Drilling Equipment
Application Petroleum Base Hydraulic Fluids Warranty 3 Years
Brand Name Hongruntong Marine Model Number HM-RDH9
Certification ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust Place of Origin China
High Light API 7K certified rotary drilling hosehigh tensile steel wire drilling hose35-75 Mpa rotary drilling hose
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

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    1990

  • Total Annual:

    7000000-1100000

  • Employee Number:

    300~500

  • Ecer Certification:

    Verified Supplier

HONGRUNTONG MARINE Company Introduction Founded in 1990 and headquartered in Beijing, China, HONGRUNTONG MARINE has grown from a local production factory into a world-leading supplier of marine products and solutions after more than 30 years of deep cultivation and development. We are committed to ... HONGRUNTONG MARINE Company Introduction Founded in 1990 and headquartered in Beijing, China, HONGRUNTONG MARINE has grown from a local production factory into a world-leading supplier of marine products and solutions after more than 30 years of deep cultivation and development. We are committed to ...

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  • Hongruntong Marine (Beijing) Co., Ltd
  • C1-7, Xuhui Center, Jinguan North 2nd Street, Shunyi District, Beijing City, P.R. China 101300
  • https://www.dredgerubberhose.com/

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