Product Description
Product Description
Factory Casting UL/FM Ductile Iron Grooved Mechanical Flexible/Rigid 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.
Specification
| 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.
Certifications
FAQ
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Can flexible couplings accommodate variable operating conditions and loads?
Yes, flexible couplings are designed to accommodate variable operating conditions and loads in mechanical systems. They offer several features that allow them to adapt to changing conditions and handle different loads effectively. Below are the reasons why flexible couplings are well-suited for such applications:
Misalignment Compensation: Flexible couplings can handle misalignment between shafts, including angular, parallel, and axial misalignment. This capability allows them to accommodate slight shifts in shaft positions that may occur due to thermal expansion, vibration, or other factors, ensuring smooth operation even in changing conditions.
Shock and Vibration Absorption: Flexible couplings can dampen shocks and vibrations that result from sudden changes in load or operating conditions. The flexible element in the coupling acts as a buffer, absorbing and reducing the impact of sudden loads or transient forces, protecting connected equipment and increasing system reliability.
Variable Load Capacity: Flexible couplings come in various designs and materials, each with its load capacity range. Manufacturers provide different coupling models with varying load capacities to accommodate different applications. Properly selecting the right coupling for the specific load conditions ensures reliable power transmission even under varying loads.
Compensation for Thermal Expansion: Temperature changes can cause thermal expansion in mechanical systems, leading to shaft misalignment. Flexible couplings can handle the resulting misalignment, compensating for thermal expansion and ensuring continuous and smooth power transmission.
Torsional Stiffness: Flexible couplings are designed with a balance between flexibility and torsional stiffness. This property allows them to adapt to variable loads while still providing the necessary rigidity for efficient power transmission.
Durable Materials and Designs: Manufacturers produce flexible couplings from durable materials like stainless steel, aluminum, or engineered elastomers. These materials ensure that the couplings can withstand varying operating conditions, including temperature fluctuations, harsh environments, and high loads.
Dynamic Behavior: Flexible couplings have a dynamic behavior that enables them to operate smoothly and efficiently under changing loads and speeds. They can handle variations in rotational speed and torque while maintaining consistent performance.
Application Flexibility: Flexible couplings find applications in a wide range of industries, from automotive and aerospace to industrial and marine. Their versatility allows them to accommodate variable operating conditions and loads in different systems.
Summary: Flexible couplings are well-suited for applications with variable operating conditions and loads. Their ability to compensate for misalignment, absorb shocks and vibrations, and handle thermal expansion make them reliable components in mechanical systems. The availability of various coupling designs and materials allows for the selection of the appropriate coupling based on the specific application requirements, ensuring optimal performance and longevity in variable conditions.
How does a flexible coupling contribute to reducing maintenance and downtime costs?
A flexible coupling plays a significant role in reducing maintenance and downtime costs in mechanical systems. Here are the ways in which it achieves this:
- Misalignment Compensation: Flexible couplings can accommodate both angular and parallel misalignments between shafts. By absorbing and compensating for misalignment, they reduce wear and stress on connected equipment, minimizing the risk of premature failures and the need for frequent adjustments.
- Vibration Damping: Flexible couplings dampen vibrations and shock loads in the system. This not only protects the connected components from excessive wear but also reduces the likelihood of damage to bearings, seals, and other critical parts, which would otherwise require frequent replacement or repair.
- Protection Against Shock Loads: In applications where sudden starts, stops, or load fluctuations occur, flexible couplings can absorb and dissipate some of the shock loads, preventing potential damage to machinery. This feature extends the equipment’s lifespan and minimizes unplanned downtime.
- Longevity of Components: By reducing stress and wear on connected components, flexible couplings contribute to their longevity. Components such as bearings, shafts, and gears are subject to less strain and fatigue, resulting in extended service intervals and reduced replacement costs.
- Easy Installation and Maintenance: Flexible couplings are relatively easy to install and require minimal maintenance. Routine inspections to check for wear or damage can be done without significant downtime, allowing proactive maintenance to address any issues before they escalate.
- Adaptability to Operating Conditions: Flexible couplings can handle variations in operating conditions, such as temperature fluctuations and different types of loads. Their ability to accommodate changing conditions reduces the need for frequent adjustments or component replacements due to environmental factors.
- Reduced Downtime during Maintenance: In the event of maintenance or equipment repairs, flexible couplings can be quickly disconnected and reconnected, minimizing the downtime required for servicing. This quick replacement reduces production losses and improves overall system efficiency.
Overall, the use of flexible couplings in mechanical systems promotes reliability, extends the life of equipment, and helps prevent costly breakdowns. By reducing maintenance and downtime costs, flexible couplings contribute to improved productivity and profitability for industrial operations.
Can flexible couplings accommodate high torque and high-speed applications?
Yes, flexible couplings can accommodate both high torque and high-speed applications, but the suitability depends on the specific design and material of the flexible coupling. Different types of flexible couplings have varying torque and speed capacities, and it’s crucial to select the right type of coupling based on the application requirements.
High Torque Applications:
Some flexible couplings, such as gear couplings and disc couplings, are designed to handle high torque levels. Gear couplings consist of toothed hubs that mesh with each other, providing a robust and efficient torque transmission. They are commonly used in heavy-duty industrial applications, such as steel mills, mining equipment, and power generation plants, where high torque loads are prevalent.
Disc couplings are also suitable for high torque applications. They use a series of flexible metal discs that can handle significant torque while compensating for misalignment. Disc couplings are often used in high-speed machinery and critical applications where precise torque transmission is essential.
High-Speed Applications:
Flexible couplings can also be used in high-speed applications. For instance, certain disc couplings, elastomeric couplings, and grid couplings are capable of handling high rotational speeds. These couplings have low inertia, which means they can respond quickly to changes in speed and provide efficient power transmission at high RPMs.
Elastomeric couplings, such as jaw couplings and tire couplings, are commonly used in various industrial applications, including pumps, compressors, and fans, where both torque and speed requirements are high. They offer good flexibility and damping properties, making them suitable for applications with high-speed variations and vibrations.
Considerations:
When selecting a flexible coupling for high torque and high-speed applications, several factors should be considered:
- The torque and speed ratings provided by the coupling manufacturer should be checked to ensure they meet or exceed the application’s requirements.
- The design and materials of the coupling should be suitable for the specific operating conditions, including temperature, environment, and potential exposure to corrosive substances.
- Proper alignment and installation of the coupling are critical to ensure optimal performance and prevent premature wear.
- In some cases, it may be necessary to use additional components, such as torque limiters or speed reducers, to protect the coupling and the connected equipment from excessive loads or speed fluctuations.
In conclusion, flexible couplings can indeed accommodate high torque and high-speed applications, but the appropriate coupling type and proper selection are essential to ensure reliable and efficient performance in these demanding conditions.
editor by CX 2024-04-11