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| Categories | Rotary Drilling Hose |
|---|---|
| Brand Name: | Hongruntong Marine |
| Model Number: | HM-RDH014 |
| Certification: | ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust |
| Place of Origin: | China |
| MOQ: | 1 |
| Price: | $18-$130 |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 1850 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 |
| Company Info. |
| Hongruntong Marine (Beijing) Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
4 Inch High Pressure Rotary Hose Flame Retardant Abrasion Proof Ultra Flexible
Rotary Drilling Hose Product Introduction
This API 7K certified rotary hose is engineered for high-performance deep well drilling operations. It handles high volumes of abrasive drilling mud under extreme pressure, maintaining integrity under constant flexing and vibration.
With a nitrile rubber inner tube and ozone-resistant synthetic rubber cover, it offers excellent oil resistance, making it ideal for onshore and offshore environments.
( Case: A land-based drilling site in Texas encountered hose failures every 3–4 months due to mud contamination and cracking. They replaced their standard hoses with API 7K rotary drilling hoses equipped with dual spiral steel reinforcement. The new hoses remained in service for over 14 months, improving productivity and saving over $20,000 in replacement costs annually. )
Specifications
| 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 are available,such as 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. | O.D. | W.P. | T.P. | Weight | B.R. | |
| inch | mm | mm | mpa(psi) | mpa(psi) | kg／m | mm | |
| HMRDH-Grade A | 1 1/2 | 38 | 51 | 11(1500) | 22(3000) | 2.19 | 560 |
| 2 | 51 | 65 | 11(1500) | 22(3000) | 3.03 | 900 | |
| 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 |
| 2 | 51 | 66 | 14(2000) | 28(4000) | 3.25 | 900 | |
| 2 1/2 | 64 | 79 | 14(2000) | 28(4000) | 4.37 | 1200 | |
| 3 | 76 | 98 | 14(2000) | 28(4000) | 7.76 | 1200 | |
| 3 1/2 | 89 | 113 | 14(2000) | 28(4000) | 9.95 | 1300 | |
| 4 | 102 | 127 | 14(2000) | 28(4000) | 12.43 | 1400 | |
| 5 | 127 | 153 | 14(2000) | 28(4000) | 15.25 | 1500 | |
| 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 |
| 2 | 51 | 69 | 28(4000) | 56(8000) | 5.15 | 900 | |
| 2 1/2 | 64 | 88 | 28(4000) | 56{8000) | 7.86 | 1200 | |
| 3 | 76 | 105 | 28(4000) | 56(8000) | 13.12 | 1200 | |
| 3 1/2 | 89 | 121 | 28(4000) | 56(8000) | 16.79 | 1300 | |
| 4 | 102 | 137 | 28(4000) | 56(8000) | 21.70 | 1400 | |
| 5 | 127 | 164 | 28(4000) | 56(8000) | 28.46 | 1500 | |
| 6 | 152 | 197 | 28(4000) | 56(8000) | 44.64 | 1600 | |
| HMRDH-Grade D | 2 | 51 | 73 | 25(5000) | 70(10000) | 6.46 | 900 |
| 2 1/2 | 64 | 91 | 35(5000) | 70(10000) | 10.75 | 1200 | |
| 3 | 76 | 107 | 35(5000) | 70(10000) | 14.35 | 1200 | |
| 3 1/2 | 89 | 123 | 35(5000) | 70(10000) | 18.77 | 1300 | |
| 4 | 102 | 139 | 35(5000) | 70(10000) | 23.16 | 1400 | |
| 5 | 127 | 171 | 35(5000) | 70(10000) | 38.00 | 1500 | |
| 6 | 152 | 200 | 35(5000) | 70(10000) | 48.43 | 1600 | |
| HMRDH-Grade E | 2 | 51 | 80 | 52(7500) | 104(15000) | 10.37 | 1000 |
| 2 1/2 | 64 | 101 | 52(7500) | 104(15000) | 17.88 | 1200 | |
| 3 | 76 | 120 | 52(7500) | 104(15000) | 24.45 | 1200 | |
| 3 1/2 | 89 | 135 | 52(7500) | 104(15000) | 29.33 | 1300 | |
| 4 | 102 | 148 | 52(7500) | 104(15000) | 34.24 | 1400 | |
| 5 | 127 | 189 | 52(7500) | 104(15000) | 55.39 | 1500 | |
| HMRDH-Grade F | 2 | 51 | 82 | 70(10000) | 105(15000) | 11.81 | 1OOO |
| 2 1/2 | 64 | 104 | 70(10000) | 105(15000) | 20.46 | 1300 | |
| 3 | 76 | 129 | 70(10000) | 105(15000) | 32.74 | 1300 | |
| 3 1/2 | 89 | 144 | 70(10000) | 105(15000) | 39.43 | 1400 | |
| 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
High Vibration Tolerance
Designed to absorb shock and vibration from rotating equipment
without compromising hose integrity.
Low Volumetric Expansion
Maintains consistent internal diameter under pressure for precise
mud flow and pump calibration.
Leak Proof Connections
Equipped with high-quality hammer unions or flanged ends to ensure
tight, secure fittings.
UV and Ozone Resistant
Outer cover is resistant to weathering, extending service life in
outdoor rig environments.
Engineered for the Toughest Applications
Water Well Drilling
Transports water-based mud and prevents collapse in aquifer
drilling.
Mining Mineral Exploration
Used in core drilling rigs for mineral sampling and blast hole
drilling.
Horizontal Directional Drilling (HDD)
Flexible design accommodates tight bends in trenchless pipeline
installations.
What Sets Us Apart
Fast Response Technical Support
Our engineers provide quick guidance on product selection,
troubleshooting, and installation best practices.
OEM Private Label Available
We offer branding and packaging services for distributors and
equipment manufacturers worldwide.
Reliable Supply Chain for Raw Materials
Long-term partnerships with certified suppliers ensure stable
quality and delivery timelines.
Comprehensive After Sales Service
We provide installation guidance, maintenance instructions, and
post-shipment support to minimize downtime.
FAQ
1. Q: Can the hoses handle high temperatures?
A: Yes, our hoses operate in temperatures ranging from -40°C to
+120°C, with high-temp models up to +150°C.
2. Q: What is the minimum bending radius of your hose?
A: It varies by size and model, but our hoses are designed for
excellent flexibility and anti-kinking.
3. Q: Are the hoses resistant to H₂S and acid-based fluids?
A: Yes, we offer H₂S-resistant and acid-proof inner tube options
for sour gas drilling environments.
4. Q: What type of reinforcement is used?
A: We use multiple layers of high-tensile steel wire for strength,
durability, and pressure resistance.
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