Ductile Iron GGG40 DN150 Coupling PN10/16 Coupling Dismantling Joint Carbon Steel Ductile Iron Pipe Fitting Flange Adaptor China Factory Pipe Universal Coupling
Carbon Steel Dismantling Joint Flanged PN16 Technical Specification:
Nominal Diameter: DN80 to DN2000
Nominal Pressure: PN6/10/16
Flange Connection: EN1092, ANSI B16.5
Inspection and Test: EN12266-1/API 598
Carbon Steel Dismantling Joint Flanged PN16 Material List
1. Body: Ductile iron/carbon steel
2. Sealing: EPDM
3. Gland: carbon steel/stainless steel
4. Stud: carbon steel/stainless steel
5. Nut: carbon steel/stainless steel
6. Gasket: carbon steel/stainless steel
Some Ending Clients
We do not have any MOQ for this valve, 1 set order is also can be accepted.
It depends on the order quantity, but not more than 35-40days after received payment
|By sea||LCL shipment|
|By air||By air cargo or courier for sample|
30% deposit, the balance will be paid before loading.
We promise 100% hydraulic testing before exporting, with a testing machine and testing bowl(for big size).
Body testing: 1.5* design pressure
Sealing testing 1.1* design pressure
We can provide a 12-month warranty after the shipping date.
Plywood case in exporting standard, bubble plastic packing inside
For large size, we will use steel pallet with bubble plastic packing outside
Our Overseas Exhibition
Or you can visit our website: davanflowtek
Flange Couplings for Motor-to-Shaft and Shaft-to-Shaft Connections
Flange couplings are versatile components that can be used for both motor-to-shaft and shaft-to-shaft connections in a wide range of mechanical systems. Their design and features make them suitable for various applications:
1. Motor-to-Shaft Connections: Flange couplings are commonly used to connect electric motors to driven equipment, such as pumps, fans, compressors, and conveyors. In motor-to-shaft connections, the flange coupling is mounted on the motor shaft and connected to the input shaft of the driven equipment. This configuration ensures efficient power transmission from the motor to the driven component.
2. Shaft-to-Shaft Connections: Flange couplings are also employed for shaft-to-shaft connections, where two shafts need to be linked together. This could involve connecting two separate pieces of machinery or extending the length of an existing shaft. Flange couplings allow for the secure and precise alignment of the two shafts, ensuring smooth rotation and power transmission between them.
Flange couplings are available in various designs, such as rigid flange couplings, flexible flange couplings, and floating shaft couplings. Rigid flange couplings offer a more rigid connection, ideal for applications where shaft misalignment is minimal. Flexible flange couplings, on the other hand, can accommodate some degree of misalignment and provide vibration dampening, making them suitable for systems with dynamic conditions or slight misalignments.
When selecting a flange coupling for a specific connection, factors such as the required torque capacity, shaft sizes, misalignment tolerance, and operating conditions need to be considered. Proper installation and alignment are crucial to ensure the optimal performance and longevity of the flange coupling in both motor-to-shaft and shaft-to-shaft connections.
In summary, flange couplings are versatile components that can be effectively used for both motor-to-shaft and shaft-to-shaft connections. Their ability to provide secure and efficient power transmission makes them a valuable choice in various industries and mechanical systems.
Common Installation Mistakes to Avoid When Using Flange Couplings
Proper installation is crucial for the efficient and reliable operation of flange couplings. Avoiding common installation mistakes can help ensure the longevity and optimal performance of the coupling. Here are some common installation mistakes to avoid:
1. Improper Alignment: One of the most critical aspects of flange coupling installation is ensuring proper shaft alignment. Misalignment can lead to increased wear, vibrations, and decreased power transmission efficiency. Always use precision alignment tools and techniques to achieve accurate alignment.
2. Over-Tightening: Over-tightening the coupling’s bolts can cause excessive stresses on the coupling and connected equipment. It may lead to premature failure or deformation of the coupling. Follow the manufacturer’s recommended torque values for tightening the bolts.
3. Under-Tightening: On the other hand, under-tightening the bolts may result in a loose connection, leading to misalignment and potential damage to the coupling during operation. Make sure to achieve the proper torque during installation.
4. Lack of Lubrication: Insufficient or improper lubrication of the coupling’s components can result in increased friction and wear. Follow the manufacturer’s guidelines for lubrication, and use the recommended lubricant to ensure smooth operation.
5. Contamination: Avoid introducing dirt, debris, or foreign particles into the coupling during installation. Contaminants can lead to wear and damage over time, reducing the coupling’s performance.
6. Incorrect Coupling Selection: Choosing the wrong type or size of flange coupling for the application can lead to performance issues. Consider factors like torque, speed, load, and operating environment when selecting the coupling.
7. Lack of Inspection: After installation, regularly inspect the flange coupling and its components for signs of wear, damage, or misalignment. Early detection of issues allows for timely maintenance and prevents potential system failures.
8. Ignoring Manufacturer Guidelines: Always follow the manufacturer’s installation instructions and guidelines. Each flange coupling may have specific requirements and recommendations that must be adhered to for proper functioning.
9. Incorrect Shaft Fit: Ensure that the coupling properly fits the shafts’ dimensions. A loose fit can cause slippage, while a tight fit can lead to stress concentration and premature failure.
10. Inadequate Inspection of Components: Before installation, inspect all coupling components, including flanges, bolts, and keyways, for any defects or damage. Replace any damaged parts before installation.
By avoiding these common installation mistakes, you can maximize the performance and lifespan of flange couplings in your mechanical systems.
Types of Flange Coupling Designs
Flange couplings are mechanical devices used to connect two shafts and transmit torque between them. They come in various designs, each suited for specific applications. Here are the different types of flange coupling designs:
- 1. Unprotected Flange Coupling: This is the simplest type of flange coupling, consisting of two flanges with flat faces that are bolted together to connect the shafts. It is cost-effective and easy to install but offers limited protection against misalignment.
- 2. Protected Flange Coupling: In this design, the flanges are fitted with a protective cover or casing, which helps prevent dust, dirt, and other contaminants from entering the coupling. It provides better protection to the coupling components, making it suitable for outdoor or harsh environments.
- 3. Flexible Flange Coupling: This design incorporates a flexible element, such as a rubber or elastomeric insert, between the flanges. The flexible element allows for some misalignment between the shafts and helps dampen vibrations, reducing wear on connected equipment. It is commonly used in applications where there may be slight shaft misalignment.
- 4. Rigid Flange Coupling: The rigid flange coupling is a solid coupling without any flexible elements. It provides a rigid connection between the shafts, which is ideal for applications where precise alignment is critical, such as high-speed machinery or precision motion control systems.
- 5. Sleeve Flange Coupling: In this design, a hollow sleeve fits over the ends of the shafts and is bolted to the flanges. The sleeve helps provide additional support and alignment for the shafts.
- 6. Half-Flanged Coupling: Half-flanged couplings consist of two flanges on one shaft and a single flange on the other shaft. This design is suitable for applications with limited space or where one shaft is fixed, and the other requires disconnection frequently.
The choice of flange coupling design depends on factors such as the level of misalignment, speed of rotation, available space, environmental conditions, and the required level of flexibility. Proper selection of the flange coupling type ensures efficient power transmission and extends the life of connected machinery and equipment.
editor by CX 2023-09-18