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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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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Are there any safety considerations when working with mechanical couplings?
Yes, working with mechanical couplings involves some safety considerations to prevent accidents and ensure the well-being of personnel. Here are important safety measures to keep in mind:
1. Lockout/Tagout Procedures:
Prior to working on machinery with mechanical couplings, implement lockout/tagout procedures to ensure that the equipment is isolated from its power source and cannot be accidentally energized during maintenance or repair activities.
2. Proper Training:
Ensure that personnel working with mechanical couplings receive proper training on safe handling, installation, and maintenance procedures. Adequate knowledge of coupling types, torque limits, and alignment techniques is crucial to avoid accidents.
3. Personal Protective Equipment (PPE):
Wear appropriate personal protective equipment, such as gloves, safety goggles, and hearing protection, when installing or inspecting couplings. This helps prevent injuries from sharp edges, rotating parts, or potential flying debris.
4. Follow Manufacturer’s Guidelines:
Always follow the manufacturer’s guidelines and instructions for the specific coupling being used. Proper installation torque, maintenance schedules, and safety precautions provided by the manufacturer should be strictly adhered to.
5. Inspections:
Regularly inspect the couplings for signs of wear, misalignment, or damage. Any worn or damaged couplings should be replaced promptly to prevent failures during operation.
6. Avoid Overloading:
Do not exceed the torque and speed limits specified by the manufacturer for the coupling. Overloading the coupling can lead to premature failure and potential safety hazards.
7. Preventive Maintenance:
Implement a preventive maintenance program to regularly check and service the couplings as recommended by the manufacturer. Proper maintenance can extend the life of the coupling and prevent unexpected failures.
8. Proper Storage:
Store spare couplings in a safe and dry environment, away from potential damage or exposure to harmful substances. Protect the couplings from corrosion and contamination.
9. Emergency Procedures:
Have emergency procedures in place in case of coupling failure or accidents. Employees should know how to respond to unexpected incidents safely.
10. Proper Lifting and Handling:
When installing or removing heavy couplings, use appropriate lifting equipment and techniques to prevent strain or injuries.
By following these safety considerations, workers can reduce the risk of accidents and ensure a safe working environment when dealing with mechanical couplings.
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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 2024-01-25