China Good quality Factory Direct Rubber Bunker Hose Couplings Pressure Test Certification with Floats

Product Description

Bunkering Oil Hose
The Hongruntong Oil & Marine Bunkering Hoses exceed the basic requirements of all International rules because their construction is a direct derivate of designs, technology and quality control procedures used in the building of marine hoses for offshore application, with long operational life and total environmental safety in mind. Moreover flanges can be offered to all international tables and be of the fixed or swivel type. End fittings can be built-in or clamped.

Product Description

After Sales Service

Features & Applications

Product Parameters


Hose Diameter

Working Pressure































*Other sizes can be customized according to requirements.


Detailed Photos

Company Profile

With certification, product quality is More Guaranteed!
Since 1990, CHINAMFG have been committed to the supplying of equipments, tools and solutions for the marine and offshore industry. Up to now, we have reached cooperation with 800+ customers in more than 30 countries and regions around the world.


1. What’s the material of your hoses?
Material: NBR + High Tensile Steel Wire + Orange Spiraled Stripe.

2. What’s the advantage of your hoses?
Built and tested in accordance with OCIMF2009 specifications.
Third quality inspection.
Stable price and delivery time.
Best Customer Testimonials .

3. How long about the shortest delivery time?
Multiple production lines are synchronized to ensure delivery within the specified time.

4. What’s your MOQ of your hoses?
MOQ: 1 Piece.

5. What’s the lifespan of your hoses?
Lifespan: More than 10 years.

6. What’s the warranty period of your products?
36 months. Excellent quality reassures you and me.

7. What’s your standard of the hoses?
To be satisfy with OCIMF2009 & EN1765.

8. What kind of certificate can you provide?
DNV.GL, BV, CCS, ABS, LR certificates are available.
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rubber coupling

Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

  • Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
  • Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

rubber coupling

Handling Torque and Vibration Suppression in Rubber Couplings

Rubber couplings are designed to effectively handle both high levels of torque transmission and vibration suppression. The flexibility and damping properties of rubber make it well-suited for these purposes:

  • Torque Transmission: Rubber couplings can transmit torque between shafts while accommodating angular misalignment. The rubber element flexes and deforms as torque is applied, allowing the coupling to transmit power even in misaligned conditions.
  • Vibration Suppression: Rubber’s inherent damping characteristics help absorb and dissipate vibrations and shocks generated during the operation of machinery. This feature reduces the transfer of vibrations to connected components, minimizing wear and enhancing overall system performance.

Engineers select the appropriate rubber material and coupling design to ensure that the coupling can effectively handle the required torque levels and provide the desired vibration suppression. Rubber couplings find applications in various industries where torque transmission and vibration damping are critical for smooth and reliable machinery operation.

rubber coupling

Main Advantages of Using Rubber Couplings in Industrial Applications

Rubber couplings offer several key advantages when used in industrial applications. These advantages make them a popular choice for various industries and mechanical systems:

  • Misalignment Tolerance: Rubber couplings can accommodate angular, parallel, and axial misalignments between connected shafts, reducing the need for precise alignment during installation and operation.
  • Vibration Damping: The rubber elements of these couplings absorb and dampen vibrations, minimizing the transmission of vibrations and shocks to other components. This helps prevent damage, wear, and noise generation.
  • Shock Absorption: In systems where sudden shocks or impacts occur, rubber couplings absorb and cushion the impact, protecting connected components from damage.
  • Noise Reduction: The ability to dampen vibrations also contributes to noise reduction, creating quieter operation environments for machinery and equipment.
  • Equipment Protection: Rubber couplings protect sensitive equipment from excessive loads, vibrations, and shocks, enhancing the longevity and reliability of the system.
  • Cost-Effectiveness: Compared to some other coupling types, rubber couplings are generally cost-effective to manufacture, purchase, and maintain.
  • Easy Installation: The flexibility and design of rubber couplings make them relatively easy to install without the need for specialized tools or complex procedures.
  • Minimal Maintenance: Rubber couplings require minimal maintenance and lubrication, reducing downtime and maintenance costs.
  • Wide Range of Applications: Rubber couplings are versatile and find applications in various industries, including automotive, power generation, pumps, conveyors, and more.

In summary, the main advantages of using rubber couplings in industrial applications include their ability to tolerate misalignment, dampen vibrations, absorb shocks, reduce noise, protect equipment, cost-effectiveness, easy installation, low maintenance requirements, and suitability for a wide range of applications.

China Good quality Factory Direct Rubber Bunker Hose Couplings Pressure Test Certification with Floats  China Good quality Factory Direct Rubber Bunker Hose Couplings Pressure Test Certification with Floats
editor by CX 2024-04-26

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Rubber Coupling

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