Product Description

OEM Dismantling Joint Multi-functional Ductile Iron Cast Iron Universal Flexible Joint Coupling
 

Product Parameters

 

Material	Ductile iron grade 500-7/ 450-10 in accordance with ISO 1083
Standard	EN545, EN598, ISO2531, BS4772, AWWA C110, AWWA C153, GB/T13295
Certificate	ISO9001, ISO14001, SGS,WRAS
Test	In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test
Connection	DIN2576, BS4504 PN16, ANSI B16.5
Flange Drilling	PN10 / PN16 / PN25 according to BS4504
Internal Lining	Cement, conform to ISO4179/ Fishon Bonded Epoxy (FBE)
External coating	Zinc + BiHangZhou, conform to ISO8179/ Fishon Bonded Epoxy (FBE)/ Epoxy/ BiHangZhou
Usage	Jointed by the bolts, nuts and sealed by the gaskets
Note	the gaskets, bolts & nuts are supplied respectively as your special requirement

 

Product Description

 

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Company Profile

ZheJiang CHINAMFG COMMERCIAL CO.,LTD (hereinafter referred to as the "DEKO group"), the company is located in China's "Land of Casting" -ZheJiang province, we are engaged in the wholesale, retail, research and development and sales of products for the integration of import and export company and we assembled fist-class factories in domestic, using the most advanced production facilities and technology to provide the best quality for our customers, DEKO group's products has been covered in the municipal engineering projects, drainage system, constructions, fire control system and urban public facilities related products, such as Cast Pipe,Pipe Fitting,Valve, Manhole cover, Hardware products, Aluminum die casting, Aluminium profile, Public Illumination,Urban Furnishing,Flange and Pipe Repair Clamps etc., CHINAMFG group has been undertaking some domestic and foreign projects every year round and has always been praised by our customers. At present our products have been exported to Europe, South America,Africa, Asia, Middle East and Southeast Asia etc.

DEKO group adhering to the"first-class brand,first-class service"purpose, to keep improving product quality as the basis and advancing with the times, providing high quality, high standard products to our customers, CHINAMFG group will develop into a"first-class products,first-class quality,first-class service"global company in future.

Q. Do you accept OEM service?
A: Yes, we do.

Q. Can I get free samples?
A: Yes, And you only need to bear the delivery costs, if the samples are not too big.

Q.What information should I let you know if I want to get a quotation?
A: Size, design standard, material, package, Quantities, etc...

Q.How can you assure your quality?
A:We have equipped the modern quality control system as well as our quality engineer always check step by step from mold ,production before shipment.

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What are the key features to look for when purchasing a flexible coupling?

When purchasing a flexible coupling, several key features should be considered to ensure it meets the specific requirements of the application and provides reliable performance. The following are the key features to look for:

• 1. Type of Coupling: There are different types of flexible couplings available, such as jaw couplings, beam couplings, bellows couplings, disc couplings, and more. Each type has its advantages and limitations, so choosing the right type depends on factors like misalignment compensation needed, torque capacity, and application requirements.
• 2. Material: The material of the coupling is crucial for its durability and performance. Common materials include stainless steel, aluminum, steel, and various elastomers. Select a material that can withstand the environmental conditions, loads, and temperature ranges of the application.
• 3. Size and Dimensions: Ensure that the coupling's size and dimensions match the shaft sizes and available space in the system. Oversized or undersized couplings may lead to inefficiencies, misalignment, and reduced performance.
• 4. Torque Rating: Consider the maximum torque the coupling can handle to ensure it can transmit the required power without failure or damage.
• 5. Speed Rating: Check the coupling's maximum rotational speed capability to ensure it can handle the desired operating speed without issues.
• 6. Misalignment Compensation: Different couplings offer varying degrees of misalignment compensation, such as angular, parallel, and axial misalignment. Choose a coupling that can accommodate the expected misalignments in the system.
• 7. Backlash: For precision applications, consider couplings with minimal or zero-backlash to prevent motion inaccuracies and ensure precise positioning.
• 8. Operating Environment: Assess the environmental conditions, including temperature, humidity, dust, and chemical exposure, and select a coupling with suitable resistance to these factors.
• 9. Maintenance: Decide whether maintenance-free couplings or those requiring periodic lubrication align better with the application's requirements and maintenance schedule.
• 10. Electrical Isolation: If required, choose couplings with electrical isolation features to prevent current flow between connected shafts.
• 11. Dynamic Behavior: Evaluate the coupling's dynamic performance, including resonance and damping characteristics, to ensure smooth operation under various loads and speeds.
• 12. Application Compatibility: Verify that the selected coupling is suitable for the specific application, such as pumps, compressors, robotics, automation, or other industrial processes.

Summary: When purchasing a flexible coupling, consider factors such as the type of coupling, material, size, torque rating, speed rating, misalignment compensation, backlash, operating environment, maintenance, electrical isolation, dynamic behavior, and application compatibility. Careful consideration of these features will ensure that the coupling meets the demands of the application, provides reliable performance, and contributes to the overall efficiency of the mechanical system.

How does a flexible coupling handle misalignment in large rotating equipment?

Flexible couplings are designed to accommodate various types of misalignment in large rotating equipment, ensuring smooth and efficient power transmission while minimizing stress on connected components. Here's how flexible couplings handle different types of misalignment:

• Angular Misalignment: Angular misalignment occurs when the axes of the two connected shafts are not collinear and form an angle. Flexible couplings can handle angular misalignment by allowing the coupling elements to flex and move slightly, thus accommodating the angle between the shafts. The flexible elements, often made of elastomeric materials or metallic membranes, can bend and twist to compensate for angular misalignment, ensuring that the coupling remains engaged and transfers torque effectively.
• Parallel Misalignment: Parallel misalignment, also known as offset misalignment, happens when the two shafts are not perfectly aligned along their axes, resulting in a lateral shift. Flexible couplings can handle parallel misalignment through their ability to move radially, allowing the flexible elements to adjust and take up the offset. This capability prevents excessive side loads on the shafts and bearings, reducing wear and increasing the lifespan of the equipment.
• Axial Misalignment: Axial misalignment occurs when there is a linear displacement of one shaft relative to the other, either toward or away from the other shaft. Some flexible couplings, such as certain types of flexible disc couplings, can accommodate a limited amount of axial misalignment. However, for large axial movement, other types of couplings or special designs may be required.

The flexibility of the coupling elements allows them to act as a buffer between the shafts, dampening shocks, vibrations, and torsional forces caused by misalignment or other dynamic loads. This helps protect the connected equipment from damage and enhances the overall performance and reliability of the rotating system.

In large rotating equipment, where misalignment is more common due to thermal expansion, foundation settling, or other factors, flexible couplings play a critical role in maintaining smooth operation and reducing stress on the machinery. However, it is essential to choose the appropriate type of flexible coupling based on the specific requirements of the application and to regularly inspect and maintain the coupling to ensure optimal performance and longevity.

Are there any safety considerations when using flexible couplings in rotating machinery?

Yes, there are several safety considerations to keep in mind when using flexible couplings in rotating machinery. While flexible couplings offer numerous benefits in terms of misalignment compensation, vibration isolation, and shock absorption, improper use or maintenance can lead to safety hazards. Here are some important safety considerations:

• Proper Installation: Ensure that the flexible coupling is installed correctly and securely following the manufacturer's guidelines. Improper installation can lead to coupling failure, unexpected disconnection, or ejection of coupling components, which may result in equipment damage or injury to personnel.
• Alignment: Proper shaft alignment is essential for the reliable and safe operation of flexible couplings. Misaligned shafts can cause excessive stress on the coupling and connected components, leading to premature wear and possible failure. Regularly check and maintain proper shaft alignment to prevent safety risks.
• Operating Conditions: Consider the environmental and operating conditions of the machinery when selecting a flexible coupling. Some couplings are designed for specific temperature ranges, hazardous environments, or corrosive atmospheres. Using a coupling that is not suitable for the operating conditions can compromise safety and performance.
• Torque and Speed Limits: Always operate the flexible coupling within its specified torque and speed limits. Exceeding these limits can cause coupling failure, leading to unexpected downtime, equipment damage, and potential safety hazards.
• Maintenance: Regularly inspect and maintain the flexible coupling to ensure its continued safe operation. Check for signs of wear, damage, or corrosion, and promptly replace any worn or damaged components with genuine parts from the manufacturer.
• Emergency Stop Mechanism: In applications where safety is critical, consider implementing an emergency stop mechanism to quickly halt machinery operation in case of coupling failure or other emergencies.
• Personal Protective Equipment (PPE): When working with rotating machinery or during maintenance tasks involving couplings, personnel should wear appropriate PPE, such as gloves, eye protection, and clothing that can resist entanglement hazards.
• Training and Awareness: Ensure that personnel working with the machinery understand the potential hazards associated with flexible couplings and receive proper training on safe handling, installation, and maintenance procedures.

By adhering to these safety considerations, operators and maintenance personnel can mitigate potential risks and ensure the safe and reliable operation of rotating machinery with flexible couplings. Additionally, it is essential to comply with relevant safety standards and regulations specific to the industry and application to ensure a safe working environment.

editor by CX 2024-04-13