Hongruntong Marine (Beijing) Co., Ltd
| Reinforcement | High Tensile Steel Wire |
| Supply Ability | 1546 Pcs Per Month |
| Material | Natural Rubber |
| Delivery Time | 5-7 Work Days |
| Cover | High Quality Synthetic Rubber |
| Connnection type | Hammer Union / Flange |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Application | Petroleum Base Hydraulic Fluids |
| Product Name | Rotary Drilling Hose |
| Color | Black |
| Working Pressure | 35 Mpa - 75 Mpa |
| Packaging Details | Wooden Pallets, Wooden Box |
| Warranty | 3 Years |
| Machine Type | Drilling Equipment |
| Certification | ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust |
| Model Number | HM-RDH63 |
| Place of Origin | China |
| Brand Name | Hongruntong Marine |
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Product Specification
| Reinforcement | High Tensile Steel Wire | Supply Ability | 1546 Pcs Per Month |
| Material | Natural Rubber | Delivery Time | 5-7 Work Days |
| Cover | High Quality Synthetic Rubber | Connnection type | Hammer Union / Flange |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Application | Petroleum Base Hydraulic Fluids |
| Product Name | Rotary Drilling Hose | Color | Black |
| Working Pressure | 35 Mpa - 75 Mpa | Packaging Details | Wooden Pallets, Wooden Box |
| Warranty | 3 Years | Machine Type | Drilling Equipment |
| Certification | ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust | Model Number | HM-RDH63 |
| Place of Origin | China | Brand Name | Hongruntong Marine |
| High Light | Abrasion Resistance Rotary Drilling Hose ，High Pressure Stability Drilling Hose ，Easy Installation High Pressure Hose | ||
Rotary Drilling Hose is a flexible high-pressure hose developed for drilling fluid transfer systems where the connection must accommodate equipment movement, vibration, pressure fluctuation, and demanding environmental conditions. It is commonly incorporated into drilling rigs, offshore drilling units, well-servicing equipment, and associated fluid circulation systems where a flexible pressure connection is required between equipment components.
The hose consists of an inner rubber tube, multiple reinforcement layers, and an external protective cover. The inner tube provides the fluid-transfer passage and is selected according to the characteristics of the conveyed medium. Reinforcement layers provide the required mechanical and pressure resistance, while the outer cover protects the hose structure against abrasion, weather exposure, oil contamination, moisture, and general mechanical contact.
An offshore drilling contractor operating a semi-submersible drilling unit required replacement high-pressure flexible hose assemblies for a drilling fluid circulation system. The drilling unit had an approximate displacement of 42,000 tonnes and was operating in a deep-water field where continuous drilling operations were being conducted.
Hongruntong Marine reviewed the customer's technical parameters and manufactured replacement assemblies with reinforced construction and a durable external cover suitable for the specified environment. The assemblies were pressure-tested and delivered with protective packaging to ensure safe transportation and offshore handling.
| Name | Rotary Drilling Hose |
| Tube | Modified nitrile, black, specifically engineered for the effective handling of abrasive, corrosive substances, and oil drilling mud |
| Reinforcement | Composite construction featuring multiple layers of textile fabric and steel cable, with a layer of rubber positioned between the cable layers for enhanced performance |
| Cover | Black modified nitrile with a specially engineered ultra-abrasion cover, designed to provide exceptional resistance to abrasion, corrosion, cutting, gouging, oil, and weather conditions |
| Coupling | Swaged couplings, full range of couplings 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 are available upon request |
| Test | Each hose is tested at 22500psi for 15 minutes. Pressure test graph, test certificate and letter of conformance are issued for each hose |
| Model | I.D. (inch/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 |
Rotary Drilling Hose accommodates controlled displacement while maintaining continuous fluid transfer, making it ideal for systems experiencing vibration and equipment movement. The flexible hose body acts as a controlled movement section, reducing stress on pipe supports, flanges, valves, and equipment connections.
Designed for offshore conditions with durable rubber compounds and protective fittings that resist moisture, salt-containing air, sunlight, temperature variation, mud, oil, and continuous outdoor exposure. Proper material selection and installation practices ensure durable performance in demanding marine environments.
Multiple reinforcement layers distribute internal pressure and mechanical forces throughout the hose wall, providing structural strength to manage pressure pulsation, bending, vibration, and tensile loading changes. Suitable reinforcement configuration ensures reliable long-term service performance.
Inner tube materials selected for compatibility with various drilling fluids including water-based mud, oil-based mud, and synthetic drilling fluids. External cover provides abrasion protection against equipment contact and environmental exposure, ensuring both internal and external durability.
Over 30 years of manufacturing experience in marine and industrial rubber products, covering various product structures, reinforcement technologies, rubber compounds, and marine application requirements.
Comprehensive technical support for confirming hose dimensions, connection configurations, and construction requirements before production, ensuring effective integration with customer equipment.
Configurable hose construction tailored to specific operating conditions, including reinforcement options and rubber compounds selected according to pressure requirements, flexibility needs, and environmental exposure.
Structured approach to production, inspection, packaging, and documentation supporting reliable supply for international drilling projects with consistent quality and specification adherence.
Yes. Rotary Drilling Hose can be configured for offshore drilling applications where high-pressure flexible fluid transfer is required. The hose construction, rubber materials, reinforcement, outer cover, and metal fittings are selected according to the offshore operating environment, fluid medium, pressure, temperature, movement, and installation requirements.
Continuous vibration creates repeated mechanical loading in the hose body and connection areas. A correctly specified flexible hose can accommodate controlled movement and vibration, but proper installation is crucial. The hose should have sufficient length, avoid torsion, maintain its specified bend radius, and be supported appropriately to prevent uncontrolled movement.
The most useful information includes hose nominal bore, overall length, working pressure, maximum temperature, conveyed fluid, end-fitting type, connection dimensions, fitting orientation, and installation environment. Existing hose drawings or equipment interface drawings can also be provided to help confirm the required assembly specifications.
Inspection should include the outer cover, hose body, connection areas, and visible fitting surfaces. Operators should look for deep abrasion, cuts, cracking, exposed reinforcement, abnormal deformation, leakage, fitting movement, or other unusual conditions. Inspection frequency should be determined according to operating severity and the customer's maintenance procedures.
Yes. Once the required technical parameters have been established and approved, the same specification can be used as a reference for repeat production. This includes hose bore, pressure rating, length, reinforcement construction, rubber material, fitting configuration, and testing requirements. Repeatable specifications simplify spare-parts management and planned maintenance for drilling contractors operating similar equipment.
Company Details
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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