China Best Sales 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

Use of Flexible Flange Couplings in Applications Requiring Electrical Isolation

Yes, flexible flange couplings can be used in applications requiring electrical isolation between shafts. In certain industrial scenarios, it is essential to electrically isolate the connected equipment or shafts to prevent the flow of electrical current between them. This requirement is common in applications involving sensitive electronic components, motors, generators, or systems where grounding issues need to be avoided.

To achieve electrical isolation, flexible flange couplings can be designed using non-conductive or insulating materials. Some key considerations for using flexible flange couplings in such applications are as follows:

  1. Material Selection: Instead of metallic materials commonly used in standard couplings, such as steel or aluminum, the flexible flange couplings for electrical isolation purposes can be manufactured from non-conductive materials like thermoplastics, certain composites, or specially formulated insulating elastomers.
  2. Insulating Sleeve: Some flexible flange couplings may feature an insulating sleeve or barrier between the two flanges. This sleeve prevents direct contact between the flanges and acts as an electrical barrier, ensuring isolation between the shafts.
  3. Dielectric Strength: When selecting materials for electrical isolation, it is crucial to consider their dielectric strength, which determines the maximum voltage they can withstand without breakdown. The materials chosen should have adequate dielectric strength to suit the application’s electrical requirements.
  4. Performance Considerations: It is important to note that while achieving electrical isolation, the selected materials should still meet the necessary performance criteria for the specific application. The coupling must retain its ability to transmit torque, accommodate misalignment, and provide damping characteristics as required.
  5. Environmental Factors: Consideration should also be given to the environmental conditions of the application, such as temperature, humidity, and chemical exposure. The chosen materials should be compatible with the operating environment to ensure long-term reliability.

By carefully selecting appropriate materials and incorporating insulating features, flexible flange couplings can effectively provide electrical isolation between shafts while fulfilling the mechanical and functional requirements of the machinery or equipment. This enables the safe and reliable operation of electrical systems without the risk of electrical currents passing through the coupling and connected components.

flexible flange coupling

Flexibility of Retrofitting Flexible Flange Couplings for Improved Performance

Yes, flexible flange couplings can be retrofitted into existing systems to improve performance. Retrofitting is a cost-effective solution for upgrading older machinery or systems without the need for significant modifications or replacements.

Here are the key points to consider when retrofitting flexible flange couplings:

  • Compatibility: Before retrofitting, ensure that the selected flexible flange coupling is compatible with the existing system. Check the dimensions, torque capacity, and other specifications to ensure a proper fit and reliable performance.
  • Misalignment Compensation: Flexible flange couplings can accommodate misalignments, making them suitable for retrofitting into systems where misalignments may have occurred over time due to wear and tear or other factors. They can help restore proper alignment and improve system efficiency.
  • Vibration Reduction: If the existing system experiences excessive vibrations, retrofitting with flexible flange couplings can help dampen these vibrations and reduce the stress on components, leading to improved overall system performance and reliability.
  • Torque Transmission: Flexible flange couplings are designed to transmit high torques, which is beneficial for retrofitting into systems where torque requirements may have increased or changed since the original coupling was installed.
  • Installation: Retrofitting should be done carefully and by following the manufacturer’s guidelines. Proper installation ensures that the flexible flange coupling operates as intended and provides the desired performance improvements.
  • System Evaluation: Before retrofitting, evaluate the overall system to identify any potential issues that may need to be addressed. Retrofitting with flexible flange couplings can enhance performance, but it’s essential to ensure that other components are in good condition and suitable for continued operation.

Flexible flange couplings offer versatility and adaptability, making them a viable option for retrofitting into various mechanical systems. They can improve the system’s performance, reduce maintenance requirements, and extend the service life of the equipment.

However, it’s advisable to consult with coupling manufacturers or engineering experts to determine the best type and size of flexible flange coupling for the specific retrofitting application. They can provide valuable insights and recommendations to ensure a successful and effective retrofitting process.

flexible flange coupling

Working Principle of a Flexible Flange Coupling and its Advantages

A flexible flange coupling is designed to connect two shafts in a mechanical system while compensating for misalignment and torsional vibrations. It consists of two flanges, one on each shaft, connected by a flexible element in between.

Working Principle: When torque is transmitted through the coupling, the flexible element allows for slight angular, parallel, and axial misalignment between the shafts. This flexibility is crucial in cases where perfect alignment is difficult to achieve or maintain during operation. The coupling’s design and materials enable it to handle the relative movement between the shafts while transmitting torque smoothly.

The flexible element can be made of various materials, such as elastomers, metals, or composite materials. Elastomeric materials like rubber or polyurethane offer excellent vibration damping properties, while metallic elements provide higher torque transmission capabilities.

Advantages of Flexible Flange Couplings:

  • Misalignment Compensation: Flexible flange couplings can accommodate both angular and parallel misalignment, as well as a combination of both. This capability helps to reduce stress on the connected machinery and prevents premature wear.
  • Vibration Damping: Couplings with elastomeric elements act as effective vibration dampers, reducing resonance and minimizing vibrations that can damage the equipment.
  • Torsional Compliance: The flexibility of the coupling allows it to absorb torsional vibrations, preventing shocks from being transmitted through the system.
  • Easy Installation: Flexible flange couplings are relatively easy to install, and they do not require precise alignment during assembly, saving time and effort in the setup process.
  • High Torque Transmission: Couplings with metallic elements can handle high torque loads, making them suitable for heavy-duty applications.
  • Compact Design: The compact design of flexible flange couplings allows them to be used in limited spaces where other coupling types might not fit.
  • Low Maintenance: In general, these couplings have low maintenance requirements, contributing to reduced downtime and operational costs.

Conclusion: Flexible flange couplings offer a versatile and efficient solution for connecting rotating shafts in various mechanical systems. Their ability to compensate for misalignment, dampen vibrations, and transmit torque reliably makes them well-suited for a wide range of industrial applications. When selecting a coupling, it’s crucial to consider the specific requirements of the machinery and the operating conditions to ensure optimal performance and longevity.

China Best Sales Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings  China Best Sales Rigid or Flexible Couplings/Reducing Tee/Mechanical Tee/Elbow/Cross/Flange/Reducer/Cap/Grooved Pipe Fittings Grooved Couplings
editor by CX 2024-04-25

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.

Please contact us for details.

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Manufacturer supplier exporter of flexible flange coupling

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