China best FM UL Approved 3″ Cast Iron Blue Flexible Grooved Coupling

Product Description

FOUR COLORS AVAILANLE : RED ,ORANGE ,GALVANIZED ,BLUE

Specifications
ductile iron Flexible coupling / fire fighting / grooved fittings
1.FM UL approved 
2.Size:1-12″ 
3.Material:ductile iron 
4.Surface :painting,epoxy,hot dip galvanzed
Ductile Iron Rigid Coupling
 

                                   UL FM Flexbile Coupling
Nominal Size mm/in Pipe O.D mm/in Working Pressure PSI/MPa Dimensions mm/in
Ø L H
25 
1
33.7 
1.327
300 
2.07
55. 
2.165
95 
3.74
45 
1.772
32 
42.4 
1.669
300 
2.07
65 
2.559
105 
4.133
45 
1.772
40 
48.3 
1.900
300 
2.07
71. 
2.795
110     4.331 45 
1.772
50 
2
60.3 
2.375
300 
2.07
82 
3.228
124 
4.882
45 
1.772
65 
73.0 
2.875
300 
2.07
98 
3.858
141
5.551
45 
1.772
65 
3OD
76.1 
3.000
300 
2.07
100 
3.937
142 
5.59
45 
1.772
80 
3
88.9 
3.500
300 
2.07
113 
4.449
160 
6.299
46 
1.811
100 
4
114.3 
4.500
300 
2.07
142 
5.59
190 
7.48
49 
1.929
125 
5.5OD
139.7
5.500
300 
2.07
168 
6.614
218 
8.583
49 
1.929
150 
6.5OD
165.1 
6.500
300 
2.07
194 
7.638
244 
9.606
49 
1.929
150 
6
168.3       6.625 300 
2.07
198 
7.795
248 
9.764
49 
1.929
200
8
219.1 
8.625
300 
2.07
256. 
10.079
320 
12.598
60 
2.362
250 
10
273 
10.748
300 
2.07
328 
12.913
420 
16.535
64 
2.52
300 
12
323.9 
12.752
300 
2.07
380 
14.961
454 
17.874
64 
2.52

WE CHINAMFG , MANUFACTURER OF STEEL PIPE AND PIPE FITTINGS ,HAVE EXPORTING EXPERIENCE FOR MORE THAN 20 YEARS ,OUR PRODUCTS APPROVE ISO, TUV, PED ,API  CERTIFICATE .
                                   DETAILS    

Name Rigid and flexible Coupling, elbow, tee, cross, reducer, cap, mechanical tee, mechanical cross, flange adaptor
Standard ANSI, ASTM, ISO
Type Manufacturer,trading company
Material Ductile iron
Finish Paint, Epoxy or Galvanization
Approval FM/UL
Usage 1) Automatic sprinkler system for fire protection on commercial, civil and municipal constructions like water supplying, gas supplying, heat supplying, etc.
2) Industrial pipeline system on shipping, mine, oil field, textile, powder plant, etc.
3) Pipeline system on subway station, railway station, airport, seaport, bridge, etc.
Payment L/C or T/T
Delivery Time within 30 days or as per customers’ requirment

HangZhou CHINAMFG STEEL INDUSTRY CO., LTD. is an Industry Group Company. It is a professional company in designing,
producing and selling steel pipe, pipe fittings, flanges, valves . We have our own big factories with modern machine line to make high
quality products, which is mainly to be exported to oversea markets.

We are pure-hearted and awaiting for your kind attention to our company..

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flexible coupling

What are the key features to look for when purchasing a flexible coupling?

When purchasing a flexible coupling, several key features should be considered to ensure it meets the specific requirements of the application and provides reliable performance. The following are the key features to look for:

  • 1. Type of Coupling: There are different types of flexible couplings available, such as jaw couplings, beam couplings, bellows couplings, disc couplings, and more. Each type has its advantages and limitations, so choosing the right type depends on factors like misalignment compensation needed, torque capacity, and application requirements.
  • 2. Material: The material of the coupling is crucial for its durability and performance. Common materials include stainless steel, aluminum, steel, and various elastomers. Select a material that can withstand the environmental conditions, loads, and temperature ranges of the application.
  • 3. Size and Dimensions: Ensure that the coupling’s size and dimensions match the shaft sizes and available space in the system. Oversized or undersized couplings may lead to inefficiencies, misalignment, and reduced performance.
  • 4. Torque Rating: Consider the maximum torque the coupling can handle to ensure it can transmit the required power without failure or damage.
  • 5. Speed Rating: Check the coupling’s maximum rotational speed capability to ensure it can handle the desired operating speed without issues.
  • 6. Misalignment Compensation: Different couplings offer varying degrees of misalignment compensation, such as angular, parallel, and axial misalignment. Choose a coupling that can accommodate the expected misalignments in the system.
  • 7. Backlash: For precision applications, consider couplings with minimal or zero-backlash to prevent motion inaccuracies and ensure precise positioning.
  • 8. Operating Environment: Assess the environmental conditions, including temperature, humidity, dust, and chemical exposure, and select a coupling with suitable resistance to these factors.
  • 9. Maintenance: Decide whether maintenance-free couplings or those requiring periodic lubrication align better with the application’s requirements and maintenance schedule.
  • 10. Electrical Isolation: If required, choose couplings with electrical isolation features to prevent current flow between connected shafts.
  • 11. Dynamic Behavior: Evaluate the coupling’s dynamic performance, including resonance and damping characteristics, to ensure smooth operation under various loads and speeds.
  • 12. Application Compatibility: Verify that the selected coupling is suitable for the specific application, such as pumps, compressors, robotics, automation, or other industrial processes.

Summary: When purchasing a flexible coupling, consider factors such as the type of coupling, material, size, torque rating, speed rating, misalignment compensation, backlash, operating environment, maintenance, electrical isolation, dynamic behavior, and application compatibility. Careful consideration of these features will ensure that the coupling meets the demands of the application, provides reliable performance, and contributes to the overall efficiency of the mechanical system.

flexible coupling

Can flexible couplings accommodate both radial and axial loads simultaneously?

Yes, flexible couplings are designed to accommodate both radial and axial loads simultaneously, making them versatile for various mechanical systems. The ability to handle these loads is one of the key advantages of using flexible couplings in power transmission applications. Here’s how they manage both types of loads:

  • Radial Loads: Radial loads act perpendicular to the shaft’s axis and can arise from forces that are not in line with the shaft, such as belt tension or bearing loads. Flexible couplings can handle radial loads due to their flexibility and ability to bend or deform slightly, redistributing the radial forces and minimizing the impact on the connected equipment.
  • Axial Loads: Axial loads act along the shaft’s axis and are common in applications with thrust forces or axial movements. Flexible couplings can accommodate axial loads through their axial flexibility, allowing slight axial displacement without transmitting excessive forces to the connected components.
  • Angular Misalignment: Besides radial and axial loads, flexible couplings can also handle angular misalignment between the shafts. Angular misalignment occurs when the shafts are not perfectly aligned, and flexible couplings can compensate for this misalignment, reducing wear and stress on the connected machinery.

By accommodating both radial and axial loads, flexible couplings help prevent premature wear, reduce the risk of equipment damage, and contribute to smoother and more efficient power transmission. When selecting a flexible coupling for an application, it is essential to consider the expected radial and axial loads, as well as the required level of misalignment compensation to ensure optimal performance and longevity of the coupling and the connected equipment.

flexible coupling

Can flexible couplings be used in both horizontal and vertical shaft arrangements?

Yes, flexible couplings can be used in both horizontal and vertical shaft arrangements. The design of flexible couplings allows them to accommodate misalignment and compensate for angular, parallel, and axial displacements between the shafts, making them suitable for various shaft orientations.

Horizontal Shaft Arrangements:

In horizontal shaft arrangements, where the shafts are parallel to the ground or horizontal plane, flexible couplings are commonly used to connect two rotating shafts. These couplings help transmit torque from one shaft to another while accommodating any misalignment that may occur during operation. Horizontal shaft arrangements are common in applications such as pumps, compressors, conveyors, and industrial machinery.

Vertical Shaft Arrangements:

In vertical shaft arrangements, where the shafts are perpendicular to the ground or vertical plane, flexible couplings are also applicable. Vertical shafts often require couplings that can handle the additional weight and forces resulting from gravity. Flexible couplings designed for vertical applications can support the weight of the rotating equipment while allowing for some axial movement to accommodate thermal expansion or other displacements. Vertical shaft arrangements are commonly found in applications such as pumps, gearboxes, turbines, and some marine propulsion systems.

Considerations for Vertical Shaft Arrangements:

When using flexible couplings in vertical shaft arrangements, there are a few additional considerations to keep in mind:

  • Thrust Load: Vertical shafts can generate thrust loads, especially in upward or downward direction. The flexible coupling should be selected based on its capacity to handle both radial and axial loads to accommodate these forces.
  • Lubrication: Some vertical couplings may require additional lubrication to ensure smooth operation and reduce wear, particularly if they are exposed to high axial loads or extended vertical shafts.
  • Support and Bearing: Proper support and bearing arrangements for the vertical shaft are essential to prevent excessive shaft deflection and ensure the flexible coupling functions correctly.

Overall, flexible couplings are versatile and adaptable to various shaft orientations, providing efficient power transmission and misalignment compensation. Whether in horizontal or vertical arrangements, using the appropriate flexible coupling design and considering the specific application requirements will help ensure reliable and efficient operation.

China best FM UL Approved 3China best FM UL Approved 3
editor by CX 2024-02-11

flexible jaw coupling

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

Please contact us for details.

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Manufacturer supplier exporter of flexible jaw coupling

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