Product Description
UL/FM/CE Fire-Protection Ductile Iron Grooved Pipe Fitting Flexible Coupling
Ductile iron grooved pipe fittings and couplings (FM and UL approved) mainly including 2 kinds of grooved products: (1) the pipe fittings function on connecting and sealing such as rigid coupling, flexible coupling, mechanical tee and grooved flange, (2) the pipe fittings function on connecting and transition such as bend, tee, cross, reducer.
Specifications
| Name | Rigid coupling, Flexible coupling, 90° Elbow, 45° Elbow, 22.5° Elbow, 11.25° Elbow, Split Flange, Adaptor Flange, Cap | |
| Tee, Reducing Tee(Grooved/Threaded), Mechnical Tee(Grooved/Threaded), U-bolted Mechnical Tee | ||
| Cross, Reducing Cross(Grooved/Threaded), Mechnical Cross(Grooved/Threaded) | ||
| Reducer(Grooved/Threaded), Grooved Eccentric Reducer | ||
| H.S. CODE | 735710000 | |
| Technology | Casting | |
| Connections | Grooved-Thread End, Grooved End | |
| Pressure Rate | 300PSI / 2.07MPa | |
| Size | 1” – 12” | |
| Pipe O.D. | 33.7MM – 323.9MM | |
| Surface Finish | Epoxy Powder,Painting,Galvanization,Dacromet (in Red/Orange/Blue/White Color) | |
| Design Standard | American Standard | ANSI/ASTM |
| European Standard | EN | |
| British Standard | BS | |
| Germany Standard | DIN | |
| Japanese Standard | JIS | |
| ISO Standard | ISO | |
| Thread Standard | ASME B.1.20.1 / EN15716 / DIN2999 / ISO7-1 / ISO228 / IS554 / BS EN15716 / BS 21.173 | |
| Material Standard | Ductile Iron confirms to ASTM A-536 Gr65-45-12,EN1563,JIS G5502,QT450-12 | |
| Gasket Material | EPDM,NBR or Silicon Rubber | |
| Bolts & Nuts | ISO 898-1class 8.8 | |
| Flanges Standard | PN series or Class series | |
| Packages | Plywood Cases or Plywood Pallets or Boxes | |
| Application | Fire Fighting System,Petrochemical & Gas Industry,Chemical,Machinery,Electric Power,Construction Water Works,Valve Industry,etc. | |
| Advantages | High Quality + Ready Stock + Faster Delivery + Customized | |
| Brand | LMP | |
| Certificate | ISO9001,API,CE,UL/FM | |
Company Profile
We are a leading manufacturer of pipe fittings and valves establised in 1996
1. We have over 20 years experience in exporting pipeline products.
2. 5 factories,complete 100+ projects every year.
3. Your 1 more good choice for better customer service.
Factory and Packing
FAQ
Q1:What certificate do you have?
A: We have ISO 9001, CE certificate.
Q2. Can I get free samples?
A: Yes, The free samples can be offered for free.
Q3. Can I have my own Logo on the product?
A: Yes, Simple logo design is available based on not small order quantity.
Q4: Can I have my own customized product?
A: Yes, your customized requirements for color, size, mark, etc.
Q5: Can you produce the products according to my own drawing?
A: Yes, we can produce the products according to your drawing.
Q6: How long is your delivery time?
A: Generally it is about 30-45days depends on the order quantity.
Q7:What’s your product range?
A:Forged Pipe Fitting,Butt welding Pipe Fitting,Pipe Clamps,Ductile Iron Groove Pipe Fitting,OEM Parts,Valves
Certification
Contact
HangZhou CHINAMFG Industrial Co., Ltd.
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Maintenance Requirements for Flexible Flange Couplings
Proper maintenance is essential to ensure the optimal performance and longevity of flexible flange couplings. Regular inspections and maintenance routines can help detect and prevent potential issues before they escalate into major problems. Here are the key maintenance requirements for flexible flange couplings:
- Visual Inspections: Regularly inspect the coupling for any signs of wear, damage, or misalignment. Look for cracks, tears, or deformations in the elastomeric elements and ensure that the flanges are securely fastened.
- Lubrication: Some flexible flange couplings may require periodic lubrication at the flange interface or other moving parts. Check the manufacturer’s guidelines for the recommended lubrication schedule and use the appropriate lubricant.
- Torque Checks: Verify that the flange bolts or screws are tightened to the specified torque. Loose fasteners can lead to misalignment and reduce the coupling’s performance.
- Alignment: Ensure that the connected shafts are correctly aligned. Misalignment can cause increased stress on the coupling and lead to premature failure. If misalignment is detected, it should be corrected promptly.
- Environmental Protection: In harsh environments, such as those with high humidity, chemicals, or abrasive particles, consider implementing protective measures to shield the coupling from potential damage.
- Inspections After Shock Loads: If the coupling is subjected to shock loads or excessive stress, perform thorough inspections to check for any deformation or damage that may have occurred.
- Replace Worn Elements: Over time, the elastomeric elements of the coupling may wear out. Replace these elements when they show signs of deterioration to maintain the coupling’s performance.
It is important to follow the manufacturer’s maintenance guidelines and recommendations specific to the particular flexible flange coupling model being used. Regular maintenance not only ensures the coupling’s optimal performance but also enhances the safety of the overall mechanical system.
Standard Sizes and Specifications of Flexible Flange Couplings
Flexible flange couplings come in various sizes and specifications to accommodate different applications and torque requirements. The specific sizes and specifications may vary depending on the manufacturer and the intended use. However, there are some common standard sizes and specifications available in the market:
- Coupling Size: Flexible flange couplings are available in a range of sizes, typically measured in millimeters (mm) or inches (in). Common sizes include diameters ranging from a few millimeters to several hundred millimeters, catering to different shaft diameters.
- Torque Capacity: The torque capacity of flexible flange couplings can vary widely. Couplings with higher torque capacities are used in heavy-duty applications, while those with lower torque capacities are suitable for smaller, less demanding systems.
- Material: Flexible flange couplings can be made from various materials, including steel, aluminum, and stainless steel. The choice of material depends on factors such as the application environment, torque requirements, and the need for corrosion resistance.
- Number of Flanges: Flexible flange couplings typically have two flanges to connect two shafts. However, some designs may have more flanges to provide additional stability and alignment support.
- Flexibility: The flexibility of the coupling is crucial for accommodating misalignment. The amount of angular, axial, and parallel misalignment that the coupling can handle should be considered during the selection process.
- Operating Temperature: The temperature range within which the coupling can operate effectively should be specified. High-temperature applications may require couplings with special materials or heat-resistant designs.
- Speed Rating: Flexible flange couplings are rated for specific rotational speeds. It’s essential to ensure that the selected coupling can handle the required speed without causing vibration or premature wear.
- Backlash: Some couplings are designed to have minimal or zero backlash, which is crucial for applications requiring precise motion transfer, while others may allow for some level of backlash.
- Installation Method: The method of installation can vary between different flexible flange coupling designs. Some may require set screws or clamping elements, while others may have keyways or other attachment methods.
It’s important to consult the manufacturer’s datasheets and technical specifications to find the exact sizes and specifications of flexible flange couplings available from different suppliers. Additionally, considering the specific requirements of the application and seeking expert advice can help in selecting the right flexible flange coupling for optimal performance and longevity in the mechanical power transmission system.
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:
- 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.
- 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.
- 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.
- 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.
- 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.
editor by CX 2023-12-19