Product Description
ANSI screwed end rubber expansion joint for pipe
Technical Parameters and Raw Material
| Nominal diameter(mm) | 20~80 | 20~80 | ||
| Nominal pressure(Mpa) | 1.0 | 1.6 | ||
| Testing pressure | Seal(Mpa) | 1.1 | 1.76 | |
| Explosion pressure(Mpa) | 4.8 | |||
| Suitable temperature(°C) | -15°C~110°C | |||
| Suitable medium | Air,compressed air,water,seawater,hotwater,oil and acid | |||
| Threaded Connector | Malleable Cast Iron | |||
| Key frame | Nylon Cord Fabric | |||
| Inner/Outer Rubber | EPDM/NBR/NR | |||
| Pressurised ring | Steel wire | |||
Overall Dimension and Weight
| Size | Length(mm) | Axial Displacement |
Horizontal displacement (mm) |
Deflexion angle |
Weight (kg) |
|||
| DN | INCH | Extrnsion | Compression | |||||
| 20 | 3/4 | 200 | 5~6 | 22 | 22 | 45° | 0.9 | |
| 25 | 1 | 200 | 5~6 | 22 | 22 | 45° | 1.15 | |
| 32 | 1.25 | 200 | 5~6 | 22 | 22 | 45° | 1.4 | |
| 40 | 1.5 | 200 | 5~6 | 22 | 22 | 45° | 1.65 | |
| 50 | 2 | 200 | 5~6 | 22 | 22 | 45° | 2.25 | |
| 65 | 2.5 | 265 | 8~10 | 24 | 24 | 45° | 3.25 | |
| 80 | 3 | 285 | 8~10 | 24 | 24 | 45° | 4.2 | |
Why Choose US
We test leakage of each roll before braiding, then we cut 300mm and crimp it to test
burst pressure after brading.
We use CNC Lathes Machine for end fittings production. Machine system, knife and inspection
tools are all imported from Japan.
We use Techmaflex Crimping Machine which is imported from France. This machine has
accurate and stable performance for crimping because it is produced for PTFE hose crimping only.
Contact to this supplier
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Suitability of Rubber Couplings for High-Speed Rotation and Varying Loads
Rubber couplings are generally well-suited for applications involving high-speed rotation and varying loads, thanks to their unique properties and design features.
High-Speed Rotation: Rubber couplings can effectively handle high-speed rotation due to their inherent flexibility and damping characteristics. The elastomeric material used in rubber couplings helps absorb and dissipate vibrations that can occur at high speeds, contributing to smoother operation and reduced wear on connected machinery components.
Varying Loads: Rubber couplings are capable of accommodating varying loads due to their ability to deform under stress. The flexibility of rubber allows it to absorb shocks and impacts caused by changes in load, preventing damage to connected equipment. This feature is particularly beneficial in applications where sudden changes in load can occur, such as in industrial machinery.
However, it’s important to consider the specific requirements of the application. While rubber couplings provide excellent vibration isolation and misalignment compensation, they may not offer the same level of torsional rigidity as some other coupling types. In cases where precise torque transmission is crucial, and minimal torsional deflection is required, other coupling options might be more suitable.
Overall, rubber couplings can provide reliable performance in applications involving high-speed rotation and varying loads, especially when the benefits of vibration damping and misalignment compensation are essential.
Common Rubber Materials Used in Manufacturing Rubber Couplings
Various rubber materials are used in the manufacturing of rubber couplings, each chosen based on its specific properties and the intended application:
- Neoprene: Known for its oil and chemical resistance, neoprene rubber is used in couplings that require durability and resistance to harsh environments.
- Nitrile: Nitrile rubber offers excellent oil and fuel resistance, making it suitable for applications in machinery that involve contact with lubricants.
- Natural Rubber: Natural rubber provides good elasticity and flexibility, making it suitable for couplings requiring high levels of shock and vibration absorption.
- EPDM: Ethylene Propylene Diene Monomer (EPDM) rubber offers good resistance to weather, ozone, and aging, making it suitable for outdoor or high-temperature applications.
- Polyurethane: Polyurethane rubber offers high abrasion resistance and can handle higher load capacities, making it suitable for heavy-duty applications.
The choice of rubber material depends on factors such as the operating environment, chemical exposure, temperature range, flexibility requirements, and load conditions. Engineers select the appropriate rubber material to ensure the coupling’s performance and longevity in specific applications.
Factors to Consider When Selecting a Rubber Coupling
Choosing the right rubber coupling for a specific application involves considering various factors:
1. Torque Requirements: Evaluate the torque that needs to be transmitted between the input and output shafts. Select a coupling with a rubber element that can handle the required torque without exceeding its limits.
2. Misalignment Compensation: Determine the degree of misalignment (angular, axial, and radial) present in the system. Choose a rubber coupling with appropriate flexibility to accommodate the expected misalignment while maintaining efficient torque transmission.
3. Vibration Damping: Assess the level of vibrations and shocks in the application. Opt for a rubber coupling with effective vibration-damping properties to protect the machinery and enhance its reliability.
4. Service Environment: Consider the operating conditions, including temperature, humidity, exposure to chemicals, and potential contaminants. Select a rubber material that can withstand the environment without deteriorating.
5. Shaft Sizes: Ensure that the coupling’s bore sizes match the shaft diameters of the connected equipment. Proper shaft fitment is crucial for efficient torque transmission.
6. Maintenance Requirements: Evaluate the maintenance practices of the system. Some rubber couplings may require periodic inspection and replacement due to wear over time.
7. Cost and Budget: Factor in the budget constraints while choosing a suitable rubber coupling. Balancing performance and cost is essential for an optimal solution.
8. Application Type: Different industries and applications have unique requirements. Choose a coupling type (spider, jaw, tire, etc.) based on the specific needs of the application.
By carefully considering these factors, you can select a rubber coupling that provides efficient torque transmission, vibration isolation, and durability in your mechanical system.
editor by CX 2024-02-15