Welcome to Hongruntong Marine (Beijing) Co., Ltd

High Pressure Oil Resistant Rotary Drill Hose 3 Inch for Petroleum Hydraulic Fluids

Basic Properties
Place of Origin: China
Brand Name: Hongruntong Marine
Certification: ABS, DNV, RMRS, CCS, LR, BV, SGS, V-Trust
Model Number: HM-RDH54
Trading Properties
Minimum Order Quantity: 1
Price: $9-$880
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 2950 Pcs Per Month
Product Summary
3 Inch Rotary Drilling Hose Oil Resistant High Pressure 35-75 Mpa Product Overview 3 Inch Rotary Drilling Hose - Oil Resistant, Anti-Kink, Extended Service Life, Durable Construction Rotary drilling hose is a high-pressure flexible hose designed to deliver drilling fluid (mud) between the mud pump ...

Product Details

Highlight:

Oil Resistant Rotary Drill Hose

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Rotary Drill Hose 3 Inch

Working Pressure: 35 Mpa - 75 Mpa
Reinforcement: High Tensile Steel Wire
Cover: High Quality Synthetic Rubber
Material: Natural Rubber
Color: Black
Connnection Type: Hammer Union / Flange
Brand Name: Hongruntong Marine
Product Name: Rotary Drilling Hose
Machine Type: Drilling Equipment
Application: Petroleum Base Hydraulic Fluids
Warranty: 3 Years
Product Description
3 Inch Rotary Drilling Hose Oil Resistant High Pressure 35-75 Mpa
Product Overview

3 Inch Rotary Drilling Hose - Oil Resistant, Anti-Kink, Extended Service Life, Durable Construction

Rotary drilling hose is a high-pressure flexible hose designed to deliver drilling fluid (mud) between the mud pump and the top drive or rotary swivel in oil and gas drilling operations. Built with multiple steel wire layers and a synthetic rubber cover, it resists abrasion, vibration, and high pressure.

It operates reliably in harsh environments with temperature ranges from -40°C to +120°C and pressure ratings up to 7,500 psi. Anti-kinking structure and flame-retardant cover ensure both durability and operational safety.

Case Study: An offshore drilling platform in the Gulf of Mexico faced repeated failures in its mud delivery lines due to severe hose wear and pressure surges. After switching to API 7K-certified rotary drilling hoses with four-wire reinforcement, failure incidents dropped to zero over 10 months. The hoses sustained pressure fluctuations and harsh marine conditions, increasing drilling uptime and reducing unplanned maintenance costs by 40%.
Technical Specifications
Component Specification
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 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.
Product Models & Dimensions
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) 21.70 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) 38.00 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
Low Maintenance Requirements

Durable construction reduces the need for frequent inspections, lowering operational costs.

Easy Installation and Handling

Lightweight yet tough design simplifies hose handling, rig-up, and rig-down processes.

Custom End Fittings Available

Hose ends can be customized with integral fittings, flanges, or couplings based on site needs.

Proven Field Reliability

Successfully used in both offshore and onshore drilling projects worldwide, demonstrating dependable performance in harsh conditions.

Engineered for the Toughest Applications
  • Onshore Oil Gas Drilling Rigs: Used to transport high-pressure drilling mud from mud pumps to the kelly or top drive. Handles abrasive fluids in conventional and directional drilling.
  • Offshore Drilling Platforms: Marine-grade hoses resist saltwater corrosion and harsh weather. Critical for deepwater drilling where high burst pressure is required.
  • Geothermal Well Drilling: Withstands high-temperature fluids (up to 150°C/302°F) in geothermal energy extraction.
What Sets Us Apart
  • Flexible Production for Small or Large Orders: Whether you need 10 hoses or 10,000, we scale production accordingly without compromising quality.
  • Environmental and Safety Compliance: Our plant meets international safety and environmental standards including ISO and CE certifications.
  • Continuous Innovation: We invest in R&D to develop lighter, stronger, and more resistant hose structures for evolving industry needs.
  • Strong Industry Reputation: Trusted by major oil & gas companies and drilling contractors globally for consistent product reliability and service.
Frequently Asked Questions
Q: What is a rotary drilling hose used for?

A: It is used to convey drilling fluid (mud) between the mud pump and the top drive or swivel during oil and gas drilling operations.

Q: What standards does your rotary hose comply with?

A: Our hoses comply with API 7K standards and are tested for pressure, safety, and performance.

Q: What pressure ratings are available?

A: We offer hoses rated from 3,000 psi to 7,500 psi, depending on application requirements.

Q: What sizes do you manufacture?

A: Common inner diameters range from 2 inches to 6 inches, with customized lengths available.

Product Images
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High Pressure Oil Resistant Rotary Drill Hose 3 Inch for Petroleum Hydraulic Fluids 6

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