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 temperature and environmental limitations of flexible couplings?

Flexible couplings are designed to operate within certain temperature and environmental limitations to ensure optimal performance and longevity. The specific limitations may vary depending on the type and material of the coupling. Here are the general considerations:

• Temperature Range: The temperature range in which a flexible coupling can operate is crucial. High temperatures can affect the material properties, leading to reduced flexibility and potential failure. Low temperatures can cause the material to become brittle and lose its ability to accommodate misalignment. It’s essential to choose a coupling suitable for the intended temperature range of the application.
• Corrosive Environments: In environments with corrosive substances, such as acids, chemicals, or saltwater, it is essential to select a flexible coupling made of materials that are resistant to corrosion. Stainless steel and certain polymers are commonly used in such environments to prevent degradation and maintain the coupling’s integrity.
• Hygienic Environments: For applications in food processing, pharmaceuticals, or cleanrooms, hygienic design is critical. Flexible couplings used in these environments should be easy to clean, made of materials that are non-toxic and resistant to contamination, and free from crevices or pockets where debris can accumulate.
• Explosive or Hazardous Atmospheres: In environments where explosive or hazardous gases, vapors, or dust are present, flexible couplings with anti-static properties or explosion-proof certifications may be necessary to prevent the risk of ignition and ensure safety.
• Outdoor Applications: For outdoor installations, flexible couplings should be able to withstand exposure to weather conditions, UV radiation, and temperature fluctuations. Couplings with weather-resistant properties are suitable for such applications.
• High-Speed Applications: In high-speed applications, the centrifugal forces on the flexible coupling increase with rotational speed. Couplings designed for high-speed applications should be balanced to minimize vibrations and ensure smooth operation.
• Shock and Impact Loads: Flexible couplings used in applications with significant shock or impact loads should have the ability to dampen and absorb these forces to protect connected equipment from damage.
• Continuous vs. Intermittent Duty: Some flexible couplings are designed for continuous-duty applications, while others are suitable for intermittent duty or start-stop operations. The coupling’s design and material should match the specific duty cycle requirements.

It is essential to consult with the coupling manufacturer or supplier to understand the temperature and environmental limitations of a specific coupling model. Proper selection and application of flexible couplings within their defined limitations contribute to reliable and efficient performance in various industrial and mechanical systems.

What are the key considerations for selecting a flexible coupling for high-speed applications?

When selecting a flexible coupling for high-speed applications, several critical considerations should be taken into account to ensure optimal performance and reliability:

• Material and Design: Choose a flexible coupling made from high-quality materials that can withstand the high rotational speeds without experiencing excessive wear or fatigue. Consider designs that are specifically engineered for high-speed applications, ensuring they have the required torsional stiffness and damping characteristics.
• Balance: Imbalance at high speeds can lead to vibration and reduce the lifespan of the coupling and connected components. Look for precision-balanced flexible couplings that minimize vibration and avoid any potential resonance issues at operating speeds.
• Torsional Stiffness: In high-speed applications, torsional stiffness is crucial to maintaining accurate rotational timing and preventing torque losses. Choose a flexible coupling with adequate torsional stiffness to minimize angular deflection under load.
• Dynamic Balancing: Dynamic balancing is essential for flexible couplings used in high-speed applications. A dynamically balanced coupling reduces vibrations caused by rotational imbalances, increasing the smoothness and stability of the system.
• Temperature Resistance: High-speed operations can generate significant heat, so select a flexible coupling that can withstand the elevated temperatures without compromising its mechanical properties or causing premature failure.
• Alignment and Runout Tolerance: Accurate alignment of the coupling with the shafts is crucial to prevent additional stress and vibration. Consider couplings with high runout tolerance and ease of alignment to facilitate proper installation.
• Service Life and Maintenance: Evaluate the expected service life of the flexible coupling in high-speed applications. Low-maintenance couplings are desirable to reduce downtime and maintenance costs.
• Application Specifics: Consider the specific requirements of the high-speed application, such as the magnitude of torque, axial movement, and the presence of shock loads. Choose a coupling that can handle these specific demands while maintaining performance at high speeds.
• Compliance with Standards: Ensure that the selected flexible coupling complies with relevant industry standards and specifications, especially those related to high-speed performance and safety.

By carefully considering these key factors, engineers can choose a flexible coupling that meets the demands of high-speed applications, delivering reliable and efficient power transmission while minimizing the risk of premature wear, vibration, and downtime.

How do flexible couplings compare to other types of couplings in terms of performance?

Flexible couplings offer distinct advantages and disadvantages compared to other types of couplings, making them suitable for specific applications. Here is a comparison of flexible couplings with other commonly used coupling types in terms of performance:

• Rigid Couplings:

Rigid couplings are simple in design and provide a solid connection between two shafts, allowing for precise torque transmission. They do not offer any flexibility and are unable to compensate for misalignment. As a result, rigid couplings require accurate shaft alignment during installation, and any misalignment can lead to premature wear and increased stress on connected equipment. Rigid couplings are best suited for applications where shaft alignment is precise, and misalignment is minimal, such as in well-aligned systems with short shaft spans.

• Flexible Couplings:

Flexible couplings, as discussed previously, excel at compensating for misalignment between shafts. They offer angular, parallel, and axial misalignment compensation, reducing stress on connected components and ensuring smooth power transmission. Flexible couplings are versatile and can handle various applications, from light-duty to heavy-duty, where misalignment, vibration damping, or shock absorption is a concern. They provide a cost-effective solution for many industrial, automotive, and machinery applications.

• Oldham Couplings:

Oldham couplings are effective at compensating for angular misalignment while maintaining constant velocity transmission. They offer low backlash and electrical isolation between shafts, making them suitable for precision motion control and applications where electrical interference must be minimized. However, Oldham couplings have limited capacity to handle parallel or axial misalignment, and they may not be suitable for applications with high torque requirements.

• Gear Couplings:

Gear couplings are robust and can handle high torque levels, making them suitable for heavy-duty applications such as mining and steel mills. They offer good misalignment compensation and have a compact design. However, gear couplings are relatively more expensive and complex than some other coupling types, and they may generate more noise during operation.

• Disc Couplings:

Disc couplings provide excellent misalignment compensation, including angular, parallel, and axial misalignment. They have high torsional stiffness, making them ideal for applications where accurate torque transmission is critical. Disc couplings offer low inertia and are suitable for high-speed applications. However, they may be more sensitive to shaft misalignment during installation, requiring precise alignment for optimal performance.

• Conclusion:

The choice of coupling type depends on the specific requirements of the application. Flexible couplings excel in compensating for misalignment and vibration damping, making them versatile and cost-effective solutions for many applications. However, in situations where high torque, precision, or specific electrical isolation is necessary, other coupling types such as gear couplings, disc couplings, or Oldham couplings may be more suitable. Proper selection, installation, and maintenance of the coupling are essential to ensure optimal performance and reliability in any mechanical system.

editor by CX 2024-02-12