Product Description
Product Description
Ductile Iron Cast Iron Grooved Pipe Fittings Reducing Coupling
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
1.Who are we?
We are based in ZheJiang , China, start from 2004,sell to South America(25.00%),North America(25.00%),Mid East(20.00%),Eastern Europe(20.00%),Western Europe(5.00%),Africa(5.00%). There are total about 1000+ people in our office.
2.How can we grurantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
OEM products,Concrete Hardware System,ELECTRICAL POWER FITTING,Valve&Valve Parts,Pipe Fittings
4.Why should you buy from us not from other suppliers?
Eathu Group is one of the biggest manufacturers and exporters of pipeline products in China. We specialize in pipeline products, and casting and forging products, we have more than 15years experience for production, quality control and export.
5.What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Spanish
What are the best practices for installing a mechanical coupling correctly?
Proper installation of a mechanical coupling is essential to ensure its optimal performance and prevent premature failure. Follow these best practices when installing a mechanical coupling:
1. Clean the Shaft Ends:
Before installation, ensure that the shaft ends are clean and free from dirt, debris, and any old coupling remnants. Clean the shafts using a suitable solvent if necessary.
2. Verify Shaft and Bore Dimensions:
Check the dimensions of the shaft and bore to ensure they match the coupling’s specifications. Ensure that the shaft and bore diameters, keyway sizes, and lengths are correct for the specific coupling.
3. Lubricate Contact Surfaces:
Apply a thin layer of appropriate lubricant to the contact surfaces of the shaft and coupling bore. This helps in easy installation and minimizes the risk of galling or damage during assembly.
4. Align Shaft and Coupling:
Align the shafts and coupling properly before installing. Avoid forcing the coupling onto the shaft; it should slide smoothly into position.
5. Use Proper Installation Tools:
Use the recommended installation tools or methods provided by the coupling manufacturer. Using improper tools may lead to damage or misalignment of the coupling.
6. Tighten Fasteners Gradually and Evenly:
If the coupling uses set screws, bolts, or any fasteners, tighten them gradually and evenly in a criss-cross pattern. This ensures uniform distribution of pressure and prevents distortion.
7. Check for Proper Keyway Fit:
If the coupling utilizes keyways, ensure that the keys fit snugly into both the shaft and the coupling keyway to prevent movement or slippage.
8. Verify Proper Torque:
If the coupling requires a specific torque value for installation, use a torque wrench to achieve the correct tightening. Avoid over-torquing as it may damage the coupling or cause premature wear.
9. Inspect for Runout and Alignment:
After installation, inspect the coupling for runout and alignment. Verify that the shafts are concentric and parallel, as misalignment can lead to premature coupling failure.
10. Conduct Regular Inspections:
Perform regular inspections and maintenance of the coupling during its operational life. Check for signs of wear, misalignment, or damage and address any issues promptly.
Adhering to these best practices ensures that the mechanical coupling is installed correctly and operates as intended. Proper installation increases the coupling’s longevity, minimizes the risk of downtime, and contributes to the overall efficiency and reliability of the mechanical system.
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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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What are the key differences between rigid and flexible mechanical couplings?
Rigid and flexible mechanical couplings are two main types of couplings used in various engineering applications. They differ significantly in their design and capabilities, each offering distinct advantages and limitations:
1. Design and Construction:
Rigid Couplings: Rigid couplings are solid and inflexible, typically made from materials like steel or aluminum. They have a compact design and provide a direct, non-flexible connection between the shafts.
Flexible Couplings: Flexible couplings are designed to provide some degree of flexibility between the connected shafts. They often consist of elements made from elastomers, rubber, or flexible materials that can bend or deform.
2. Misalignment Compensation:
Rigid Couplings: Rigid couplings are not designed to accommodate misalignment between the shafts. Precise alignment is critical for their effective operation.
Flexible Couplings: Flexible couplings can compensate for axial, radial, and angular misalignments between the shafts, allowing them to remain connected even when not perfectly aligned.
3. Torque Transmission:
Rigid Couplings: Rigid couplings provide an efficient and direct transfer of torque between the shafts. They are ideal for high-torque applications.
Flexible Couplings: Flexible couplings transmit torque between the shafts while allowing for some torsional flexibility. The torque transmission may not be as efficient as in rigid couplings, but they are suitable for applications with moderate torque requirements.
4. Vibration Damping:
Rigid Couplings: Rigid couplings do not have inherent vibration damping properties.
Flexible Couplings: Flexible couplings can dampen vibrations and shocks caused by imbalances or dynamic loads, reducing wear on connected components and enhancing system stability.
5. Applications:
Rigid Couplings: Rigid couplings are commonly used in applications where precise alignment is critical, such as in machine tools, gearboxes, and other systems requiring high precision.
Flexible Couplings: Flexible couplings find applications in various industries, including pumps, compressors, conveyor systems, automotive powertrains, and wherever misalignment compensation or vibration absorption is needed.
6. Maintenance:
Rigid Couplings: Rigid couplings generally require less maintenance due to their solid and simple design.
Flexible Couplings: Flexible couplings may require occasional maintenance, such as checking and replacing the flexible elements to ensure proper functioning.
In summary, the choice between rigid and flexible couplings depends on the specific requirements of the application. Rigid couplings offer excellent torque transmission and precision but require precise alignment. Flexible couplings accommodate misalignment and dampen vibrations, making them suitable for a wider range of applications but may have slightly lower torque transmission efficiency compared to rigid couplings.
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editor by CX 2023-12-12