China Standard Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange

Product Description

Product Description:

Single ball rubber joint is a kind of pipeline joint which is high-flexibility,high-gas tightness,resistance to medium and climate. Limit displacement and Prevent pull off  rubber joint is usually composed of inner rubber layer,fabric reinforcement layer(reinforcement layer have multilayer frictioning nylon cord fabric),middle rubber layer,outer rubber layer,top reinforce metal ring or bead ring. After high pressure, high temperature vulcanization and become. It can reduce the vibration and noise of pipeline.It can also compensate for the Thermal expansion and  cold contraction caused by temperature changed.
 

Product features:

1.Small volume, light weight, good elasticity, easy installation and maintenance.
2.After installation, it can assimilate horizontal, axial and angular displacement caused by pipeline vibration.
3.After installation, it can reduce the noise which produced by the pipeline and water pump etc.
4.Inside has seamless high pressure rubber joint more effectively prevent rubber joint’s inner walls from being corroded by corrosive medium in high temperature resistance,acid and alkali resistant,oil resistance pipeline and raised working life.

 

Technics  condition

Item/type

KXT-1

KXT-2

KXT-3

work pressure MPa( kgf/cm 2 )

1.0(10 )

1.6 ( 16 )

2.5 ( 25 )

explosion pressure MPa( kgf/cm 2 )

2.0 ( 20 )

3.0 ( 30 )

4.5 ( 45 )

vacuum degree KPa(mm/Hg)

53.3 ( 400 )

86.7 ( 650 )

100 ( 750 )

 Applicable  temperature

-15 ºC~ 115 ºC special can reach -30 ºC ~ 250 ºC

Applicable medium

Air,compressed air,water,sea water,hot water,oil,acid,alkali etc.

 

flexible flange coupling

Handling Angular and Axial Misalignments with Flexible Flange Couplings

Yes, flexible flange couplings are designed to handle both angular and axial misalignments simultaneously. These couplings use flexible elastomeric elements between the flanges, allowing them to accommodate different types of misalignments that may occur during the operation of rotating machinery.

Angular Misalignment: When the shafts are not perfectly aligned and form an angle with each other, it results in angular misalignment. Flexible flange couplings can tolerate a certain degree of angular misalignment due to the flexibility of the elastomeric elements. As the shafts rotate and the angle changes, the elastomeric material can flex and adapt to the varying positions, transmitting torque smoothly without inducing excessive stress on the machinery.

Axial Misalignment: Axial misalignment occurs when the shafts are not in the same straight line along their axis. This type of misalignment can lead to axial movement of the shafts relative to each other during operation. Flexible flange couplings can also handle axial misalignment to some extent due to the elastomeric material’s ability to absorb and compensate for the axial movements. This helps to prevent additional forces or loads being transmitted to the connected equipment and minimizes wear on the coupling itself.

It is important to note that while flexible flange couplings can accommodate certain degrees of misalignment, excessive misalignment beyond their specified limits can still cause premature wear and reduce the coupling’s efficiency. Therefore, it is crucial to install and operate the couplings within the manufacturer’s recommended tolerances for angular and axial misalignments to ensure their optimal performance and longevity.

flexible flange coupling

Comparison of Flexible Flange Couplings with Other Coupling Types

Flexible flange couplings, elastomeric couplings, and beam couplings are all popular choices for transmitting torque and accommodating misalignment in mechanical systems. Each type has its unique features and advantages, making them suitable for various applications. Here’s a comparison of flexible flange couplings with elastomeric and beam couplings:

  1. Flexible Flange Couplings:
    • Design: Flexible flange couplings consist of two flanges with flexible elements (often rubber or polyurethane) connecting them. The flexibility of the coupling allows it to accommodate angular, axial, and parallel misalignments.
    • Misalignment Compensation: Flexible flange couplings can handle moderate to high levels of misalignment, making them suitable for applications where misalignment is expected.
    • Torque Capacity: They generally have a high torque capacity, making them suitable for high-power applications.
    • Backlash: Flexible flange couplings can have minimal backlash, ensuring accurate and precise motion transfer.
    • Performance: They provide damping of vibrations, reducing resonance in the system and minimizing wear on connected components.
    • Installation: Flexible flange couplings are relatively easy to install and require minimal maintenance.
    • Applications: They are commonly used in industrial machinery, power transmission systems, and applications with moderate to high misalignment requirements.
  2. Elastomeric Couplings:
    • Design: Elastomeric couplings use an elastomer (rubber) element to connect two hubs. The elastomer provides flexibility for misalignment compensation.
    • Misalignment Compensation: Elastomeric couplings can handle angular and parallel misalignments but have limited axial misalignment capabilities.
    • Torque Capacity: They have a moderate torque capacity and are suitable for applications with lower torque requirements.
    • Backlash: Elastomeric couplings can have some level of backlash, which may impact precision in certain applications.
    • Performance: They provide damping of vibrations and shock absorption, protecting connected components from damage.
    • Installation: Elastomeric couplings are easy to install and require minimal maintenance.
    • Applications: They are commonly used in pumps, compressors, and applications where dampening of vibrations is crucial.
  3. Beam Couplings:
    • Design: Beam couplings consist of a single piece of material with spiral cuts that provide flexibility for misalignment compensation.
    • Misalignment Compensation: Beam couplings can handle angular misalignment but have limited capabilities for parallel misalignment.
    • Torque Capacity: They have a moderate torque capacity and are suitable for applications with moderate torque requirements.
    • Backlash: Beam couplings typically have low or zero backlash, making them ideal for applications requiring precise motion transfer.
    • Performance: They offer good torsional stiffness and high torsional strength.
    • Installation: Beam couplings are simple to install and require little maintenance.
    • Applications: They are commonly used in small motors, robotics, and applications with tight space constraints.

Ultimately, the choice between flexible flange couplings, elastomeric couplings, or beam couplings depends on the specific requirements of the application. Factors such as the amount of misalignment, torque capacity, backlash tolerance, and the level of vibration dampening needed will influence the selection process. It’s essential to carefully consider the operating conditions and performance characteristics to ensure the coupling chosen optimally meets the demands of the mechanical system.

flexible flange coupling

Flexible Flange Coupling in Mechanical Power Transmission

A flexible flange coupling is a type of coupling used to connect two shafts and transmit mechanical power from one shaft to another. It is designed to accommodate misalignment, parallel, angular, and axial, between the connected shafts. The coupling consists of two flanges with interlocking teeth or ridges on their mating faces, and a flexible element, often made of elastomeric material, positioned between the flanges.

The function of a flexible flange coupling in mechanical power transmission is as follows:

  1. Compensation for Misalignment: One of the primary functions of a flexible flange coupling is to compensate for misalignment between the shafts. Misalignment can occur due to various factors, such as manufacturing tolerances, thermal expansion, or vibrations. The flexible element allows the flanges to move relative to each other, accommodating both angular and parallel misalignments without imposing significant loads on the connected machinery.
  2. Shock Absorption: The flexible element in the coupling acts as a shock absorber, dampening sudden shocks and vibrations that may arise from the equipment or system. This helps protect the machinery from damage and minimizes wear and tear, enhancing the overall service life of the system.
  3. Torsional Flexibility: Flexible flange couplings offer torsional flexibility, allowing them to transmit torque smoothly between the shafts, even when the two shafts are not perfectly aligned. This capability is essential in applications where there are frequent starts, stops, or changes in load, as it reduces the risk of stress concentration and premature failure.
  4. Isolation of Vibrations: Vibrations generated in one shaft due to imbalances, misalignment, or other factors can be isolated from the other shaft by the flexible element, preventing the vibrations from propagating throughout the entire system and reducing noise levels.
  5. Easy Installation and Maintenance: Flexible flange couplings are relatively easy to install and maintain. The split design of the flanges allows them to be assembled around the shafts without the need to disassemble the entire system. This feature simplifies installation and reduces downtime during maintenance.

Conclusion: Flexible flange couplings play a crucial role in mechanical power transmission by providing a flexible and reliable connection between rotating shafts. Their ability to compensate for misalignment, absorb shocks, transmit torque smoothly, and isolate vibrations makes them suitable for a wide range of applications in various industries.

China Standard Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange  China Standard Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange
editor by CX 2023-08-18

flexible flange coupling

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