Product Description
Product Description
FM/UL Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings
FM/UL Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings
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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Comparing mechanical couplings with other types of couplings in performance.
Mechanical couplings are an essential component in power transmission systems, and they are often compared with other types of couplings based on their performance characteristics. Let’s explore how mechanical couplings compare with some other common coupling types:
1. Mechanical Couplings vs. Fluid Couplings:
Fluid couplings use hydraulic fluid to transmit torque between the input and output shafts. They offer smooth torque transmission and can act as a torque limiter, protecting the connected equipment from overloads. However, they have some energy losses due to fluid turbulence, which slightly reduces their efficiency compared to mechanical couplings. Mechanical couplings, on the other hand, provide direct and efficient torque transmission without any energy losses due to fluid friction.
2. Mechanical Couplings vs. Magnetic Couplings:
Magnetic couplings use magnetic fields to transfer torque from one shaft to another. They are commonly used in applications where a hermetic seal is required, such as in pumps and mixers. Magnetic couplings have the advantage of being completely leak-proof, unlike mechanical couplings that may require seals in certain applications. However, magnetic couplings have a lower torque capacity compared to many mechanical couplings, and their efficiency can be affected by variations in magnetic field strength and alignment.
3. Mechanical Couplings vs. Hydraulic Couplings:
Hydraulic couplings use hydraulic fluid to transmit torque. They offer high torque capacity and the ability to slip during overloads, acting as a safety feature. However, hydraulic couplings can have energy losses due to fluid friction, making them slightly less efficient than mechanical couplings. Mechanical couplings do not have energy losses related to fluid friction and provide direct torque transmission, making them more efficient in this regard.
4. Mechanical Couplings vs. Electrical Couplings:
Electrical couplings use electromagnetic fields to transfer torque. They are commonly used in high-precision and high-speed applications, such as robotics and aerospace systems. Electrical couplings can have high torque capacity and precise control over torque transmission. However, they require electrical power to function, which may not be suitable for all applications. Mechanical couplings are self-contained and do not require additional power sources, making them more suitable for various types of machinery and equipment.
5. Mechanical Couplings vs. Friction Couplings:
Friction couplings use friction between contacting surfaces to transmit torque. They are simple in design and can slip during overloads, providing protection against excessive loads. However, friction couplings can experience wear and require periodic maintenance. Mechanical couplings, depending on their type, may have a more robust design and may not experience as much wear under normal operating conditions.
In summary, mechanical couplings offer direct and efficient torque transmission without energy losses related to fluid friction or magnetic fields. While other coupling types may have specific advantages in certain applications, mechanical couplings remain a versatile and widely used choice in various industries due to their reliability, simplicity, and ease of maintenance.
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Do mechanical couplings require regular maintenance, and if so, how often?
Yes, mechanical couplings do require regular maintenance to ensure their optimal performance and longevity. The frequency of maintenance depends on various factors, including the type of coupling, the application’s operating conditions, and the manufacturer’s recommendations. Here are some general guidelines for the maintenance of mechanical couplings:
1. Visual Inspection:
Perform regular visual inspections of the coupling to check for signs of wear, damage, or misalignment. Inspect for any corrosion, cracks, or wear on the coupling components.
2. Lubrication:
Some mechanical couplings, especially those with moving parts or sliding surfaces, require periodic lubrication. Follow the manufacturer’s recommendations regarding the type and frequency of lubrication.
3. Torque Verification:
Check the tightness of fasteners, such as set screws or bolts, to ensure that the coupling is securely attached to the shafts. Loose fasteners can lead to misalignment and reduced performance.
4. Alignment Check:
Regularly check the alignment of the connected shafts to ensure that the coupling is operating within its design limits. Misalignment can lead to premature wear and reduced coupling efficiency.
5. Replacement of Worn Components:
If any coupling components show signs of wear or damage beyond acceptable limits, replace them promptly to prevent further issues.
6. Operating Condition Analysis:
Monitor the operating conditions of the mechanical system and assess whether any changes have occurred that may affect the coupling’s performance. Environmental conditions, load variations, and other factors can impact the coupling’s wear rate.
7. Manufacturer’s Guidelines:
Always follow the maintenance recommendations provided by the coupling manufacturer. The manufacturer’s guidelines may include specific inspection intervals and maintenance procedures tailored to the coupling type and application.
The maintenance frequency for mechanical couplings can vary from monthly inspections for high-demand applications to annual inspections for less demanding conditions. In some cases, couplings in critical systems may require more frequent inspections to ensure their reliability.
Implementing a proactive maintenance program for mechanical couplings helps identify potential issues early and prevents unexpected failures that can lead to costly downtime and repairs. Regular maintenance extends the life of the coupling, improves system efficiency, and enhances overall operational safety.
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How does a mechanical coupling facilitate the connection between two shafts?
A mechanical coupling plays a critical role in connecting two shafts in a mechanical system and enabling the transmission of torque and motion between them. The process of how a mechanical coupling facilitates this connection can be explained as follows:
1. Physical Linkage:
A mechanical coupling physically links the two shafts together. It consists of two mating components that fit over the respective shaft ends, ensuring a secure connection.
2. Torque Transmission:
When the motor or driving shaft rotates, it generates torque. This torque is transmitted through the mechanical coupling to the driven shaft, causing it to rotate as well.
3. Keyways or Spline Connection:
Many mechanical couplings use keyways or splines to enhance the connection between the shafts. Keyways are slots cut into the shaft and coupling, and a key is inserted to prevent relative motion between the two components.
4. Compression or Expansion Fit:
In some couplings, the connection between the shafts is achieved through a compression or expansion fit. The coupling is designed to be slightly smaller or larger than the shaft diameter, creating a tight fit when assembled.
5. Set Screws or Bolts:
Set screws or bolts are often used in mechanical couplings to secure the coupling tightly to the shafts. These screws apply pressure to prevent any relative movement between the coupling and the shafts during operation.
6. Flexible Elements:
Flexible couplings feature elements made of materials like rubber or elastomers that can bend or flex. These elements accommodate misalignment between the shafts while maintaining the connection and transmitting torque.
7. Key Features:
Certain types of couplings, such as gear couplings or disc couplings, utilize teeth or gear features to achieve a strong and precise connection between the shafts. These key features ensure a positive engagement, enhancing torque transmission.
In summary, a mechanical coupling serves as the link between two rotating shafts, enabling them to function together as a single unit. Whether through a tight compression fit, keyways, or flexible elements, the coupling ensures a secure and efficient connection, allowing torque to be transmitted from one shaft to the other, and enabling the mechanical system to perform its intended function reliably.
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editor by CX 2024-01-16