China best Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings

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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flexible flange coupling

Handling Angular and Axial Misalignments with Flexible Flange Couplings

Yes, flexible flange couplings are designed to handle both angular and axial misalignments simultaneously. These couplings use flexible elastomeric elements between the flanges, allowing them to accommodate different types of misalignments that may occur during the operation of rotating machinery.

Angular Misalignment: When the shafts are not perfectly aligned and form an angle with each other, it results in angular misalignment. Flexible flange couplings can tolerate a certain degree of angular misalignment due to the flexibility of the elastomeric elements. As the shafts rotate and the angle changes, the elastomeric material can flex and adapt to the varying positions, transmitting torque smoothly without inducing excessive stress on the machinery.

Axial Misalignment: Axial misalignment occurs when the shafts are not in the same straight line along their axis. This type of misalignment can lead to axial movement of the shafts relative to each other during operation. Flexible flange couplings can also handle axial misalignment to some extent due to the elastomeric material’s ability to absorb and compensate for the axial movements. This helps to prevent additional forces or loads being transmitted to the connected equipment and minimizes wear on the coupling itself.

It is important to note that while flexible flange couplings can accommodate certain degrees of misalignment, excessive misalignment beyond their specified limits can still cause premature wear and reduce the coupling’s efficiency. Therefore, it is crucial to install and operate the couplings within the manufacturer’s recommended tolerances for angular and axial misalignments to ensure their optimal performance and longevity.

flexible flange coupling

How do Flexible Flange Couplings Ensure Efficient Torque Transmission and Minimal Backlash?

Flexible flange couplings are designed to efficiently transmit torque between two shafts while minimizing backlash, ensuring smooth and reliable power transmission in mechanical systems. Here’s how they achieve these goals:

1. Flexibility: The key feature of flexible flange couplings is their inherent flexibility. They are made of materials that can deform slightly under load, allowing them to absorb misalignments and angular displacements between the shafts. This flexibility helps in distributing the load evenly across the coupling and prevents concentrated stress points that can lead to backlash or premature failure.

2. Absorption of Misalignments: In real-world applications, it is challenging to achieve perfect alignment between two shafts due to manufacturing tolerances, thermal expansion, or dynamic forces. Flexible flange couplings can accommodate both angular and axial misalignments, compensating for these alignment errors. By allowing the shafts to find their natural positions within the coupling, they reduce stress on the components and ensure efficient torque transmission.

3. Resilient Materials: Flexible flange couplings are typically made of resilient materials such as high-quality elastomers or flexible metallic elements like stainless steel. These materials have excellent damping properties, which means they can absorb vibrations and shocks during operation. By reducing vibrations, the couplings contribute to smoother torque transmission and lower noise levels.

4. High Torque Capacity: Despite their flexibility, modern flexible flange couplings are engineered to handle high torque loads. The coupling’s design and material selection are optimized to maintain structural integrity and transmit torque efficiently even under heavy loads.

5. No Mechanical Play: Backlash refers to the rotational play or slack between the connected shafts. Flexible flange couplings minimize backlash by securely connecting the shafts without any mechanical play. The coupling’s flexibility allows it to maintain contact with the shafts continuously, ensuring precise torque transmission without any noticeable free movement.

6. Torsional Stiffness: Flexible flange couplings are designed with a balance between flexibility and torsional stiffness. While they can accommodate misalignments, they also provide sufficient torsional rigidity to transmit torque efficiently. This balance ensures that the coupling can dampen vibrations and misalignments while still maintaining reliable torque transmission.

7. Maintenance and Lubrication: Proper maintenance, including regular inspection and lubrication, is essential to ensure the longevity and optimal performance of flexible flange couplings. Adequate lubrication helps reduce friction and wear, further improving torque transmission efficiency.

Overall, flexible flange couplings are versatile components that play a crucial role in efficient power transmission and ensuring smooth operation in various mechanical systems. Their ability to handle misalignments, dampen vibrations, and transmit torque without backlash makes them an ideal choice for critical applications in industries such as manufacturing, power generation, marine, and many others.

flexible flange coupling

Types of Flexible Flange Couplings in Industrial Applications

Flexible flange couplings come in various designs and configurations to suit different industrial applications. Some of the commonly used types include:

  • 1. Diaphragm Couplings: Diaphragm couplings consist of two flanges with a thin metal diaphragm in between. The diaphragm is designed to flex and move with minimal deformation, allowing for high torsional stiffness and excellent misalignment compensation. They are commonly used in high-speed and high-precision applications, such as pumps, compressors, and servo systems.
  • 2. Disc Couplings: Disc couplings use a series of stainless steel or metallic discs stacked alternately to create flexibility. These couplings can handle high torque, have good misalignment capabilities, and provide excellent vibration damping. They are suitable for applications that require high torque transmission, such as industrial machinery and power generation equipment.
  • 3. Grid Couplings: Grid couplings feature a flexible grid element made of spring steel or elastomeric material between the flanges. The grid provides flexibility while maintaining high torsional rigidity. These couplings are widely used in industries like material handling, conveyors, and pumps.
  • 4. Elastomeric Couplings: Elastomeric couplings use a rubber or elastomeric material as the flexible element. They are highly efficient in dampening vibrations and can accommodate misalignment. Elastomeric couplings find applications in various industries, including HVAC systems, marine equipment, and conveyor systems.
  • 5. Tyre Couplings: Tyre couplings have a flexible tyre-like element made of rubber between the flanges. They offer good shock absorption, compensate for misalignment, and reduce vibrations. These couplings are commonly used in heavy-duty applications, such as mining equipment and steel rolling mills.
  • 6. Oldham Couplings: Oldham couplings use three discs – two outer discs with radial slots and an intermediate disc with perpendicular slots. The intermediate disc slides between the outer discs, providing flexibility and misalignment compensation. They are ideal for transmitting torque between shafts with limited parallel misalignment and are used in printing machines, textile equipment, and robotics.

Conclusion: The selection of a specific type of flexible flange coupling depends on the requirements of the industrial application, including the amount of misalignment, torque transmission, speed, and the need for vibration dampening. Each type of coupling offers unique advantages, making them suitable for various industrial setups where reliable and flexible power transmission is essential.

China best Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings  China best Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings
editor by CX 2024-04-30

flexible flange coupling

As one of leading flexible flange coupling manufacturers, suppliers and exporters of products, We offer flexible flange coupling and many other products.

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