Product Description
4 COLORS AVAILABLE: RED, BLUE , GALVANIZED ,ORANGE FOR REDUCING COUPLING.
ductile iron Flexible coupling / reducing coupling / grooved fittings
1.Coupling all approved by FM UL approved
2.Size:Standard grooved specifications: 1-12″
3.Material:ductile iron ASTM-A536 Grade 65-45-12
4.Surface :painting,epoxy,hot dip galvanzed
5.Gasket : EDPM , tempersture Range : (-34—-+110ºC)
SILICON , tempersture Range : (-40—-+177ºC)
NITRILE, tempersture Range : (-29—-+82ºC)
6.Thread :BSPT or NPT
7.Painting /Epoxy RAL 3000
8.Bolts and Nuts: ISO 898-1class 8.8
Ductile Iron Rigid Coupling / flexible pipe coupling / fire fighting flexible coupling / quick release coupling , Reducing coupling exporter ,flexible Reducing coupling supplier in CHINA!
Reducing coupling Product show
| Nominal Size
mm/in |
Pipe O.D
mm/in |
Working Pressure
PSI/Mpa |
Dimension |
Bolt/Nut |
|||
| A | B | C | |||||
| mm/in |
mm/in |
mm/in |
|||||
| 50×40 | 60.3×48.3 | 300 | 87 | 130 | 48 | 10*55 | |
| 2×1½ | 2.375×1.900 | 2.07 | 3.425 | 5.118 | 1.89 | ||
| 65×40 | 73.0×48.3 | 300 | 100 | 142 | 48 | 10*60 | |
| 2½×1½ | 2.875×1.900 | 2.07 | 3.937 | 5.591 | 1.890 | ||
| 65×50 | 73.0×60.3 | 300 | 100 | 142 | 48 | 10*60 | |
| 2½×2 | 2.875×.375 | 2.07 | 3.937 | 5.591 | 1.890 | ||
| 65×40 | 76.1×48.3 | 300 | 102 | 147 | 48 | 10*60 | |
| 3OD×1½ | 3.000×1.900 | 2.07 | 4.016 | 5.787 | 1.890 | ||
| 65×50 | 76.1×60.3 | 300 | 102 | 147 | 48 | 10*60 | |
| 3OD×2 | 3.000×2.375 | 2.07 | 4.016 | 5.787 | 1.890 | ||
| 80×40 | 88.9×48.3 | 300 | 116 | 165 | 49 | 12*70 | |
| 3×1½ | 3.500×1.900 | 2.07 | 4.567 | 6.496 | 1.929 | ||
| 80×50 | 88.9×60.3 | 300 | 116 | 165 | 49 | 12*70 | |
| 3×2 | 3.500×2.375 | 2.07 | 4.567 | 6.496 | 1.929 | ||
| 80×65 | 88.9×73.0 | 300 | 116 | 165 | 49 | 12*70 | |
| 3×2½ | 3.500×2.375 | 2.07 | 4.567 | 6.496 | 1.929 | ||
| 80×65 | 88.9×76.1 | 300 | 116 | 165 | 49 | 12*70 | |
| 3×3OD | 3.500×3.000 | 2.07 | 4.567 | 6.496 | 1.929 | ||
| 100×32 | 114.3×42.4 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×1¼ | 4.500×1.669 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 100×40 | 114.3×48.3 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×1½ | 4.500×1.900 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 100×50 | 114.3×60.3 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×2 | 4.500×2.375 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 100×65 | 114.3×73.0 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×2½ | 4.500×1.327 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 100×65 | 114.3×76.1 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×3OD | 4.500×3.000 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 100×80 | 114.3×88.9 | 300 | 146 | 200 | 52 | 14*75 | |
| 4×3 | 4.500×3.500 | 2.07 | 5.748 | 7.874 | 2.047 | ||
| 150×100 | 165.1×114.3 | 300 | 197 | 255 | 51 | 16*85 | |
| 6½×4 | 6.500×4.500 | 2.07 | 7.756 | 10.039 | 2.008 | ||
| 150×80 | 168.3×88.9 | 300 | 200 | 259 | 52 | 16*85 | |
| 6×3 | 6.625×3.500 | 2.07 | 7.874 | 10.197 | 2.047 | ||
| 150×100 | 168.3×114.3 | 300 | 200 | 259 | 52 | 16*85 | |
| 6×4 | 6.625×4.500 | 2.07 | 7.874 | 10.197 | 2.047 | ||
| 150×125 | 168.3×139.7 | 300 | 210 | 259 | 53 | 16*85 | |
| 6×5½OD | 6.625×5.500 | 2.07 | 8.268 | 10.197 | 2.087 | ||
| 200×150 | 219.1×168.3 | 300 | 258 | 335 | 62 | 20*110 | |
| 8×6 | 8.625×6.625 | 2.07 | 10.157 | 13.189 | 2.441 | ||
WHAT WE DO ?
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 have advanced technology of management; we win the trust because of our good quality.We have clannish conscientious and passionate salesman, we gladden and steady the customers with our best service.
We are pure-hearted and awaiting for your kind attention to our company .
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How does a flexible coupling contribute to the longevity of connected equipment?
A flexible coupling plays a crucial role in enhancing the longevity of connected equipment in various ways. It acts as a mechanical interface between two shafts, connecting them while accommodating misalignment, dampening vibrations, and transmitting torque. Here’s how a flexible coupling contributes to the longevity of connected equipment:
- Misalignment Compensation: One of the primary functions of a flexible coupling is to compensate for both angular and parallel misalignment between two shafts. Misalignment can occur due to various factors, including thermal expansion, assembly errors, or settling of foundation, which can exert excessive stress on the connected equipment. By allowing misalignment, the flexible coupling reduces the stress transmitted to the shafts and connected components, preventing premature wear and failure.
- Shock and Vibration Dampening: Flexible couplings are designed to absorb shocks and dampen vibrations that occur during operation. Vibrations and shocks can be detrimental to connected equipment, leading to fatigue, wear, and premature failure of components. The coupling acts as a buffer, reducing the impact of vibrations and protecting the equipment from potential damage.
- Reduced Stress Concentration: A rigid coupling can create stress concentration points on the shafts, leading to fatigue and cracking over time. Flexible couplings distribute the load more evenly along the shafts, reducing stress concentration and minimizing the risk of failure.
- Transmitting Torque Smoothly: Flexible couplings transmit torque from one shaft to another smoothly, without introducing sudden torque spikes or shocks. This even torque transfer prevents sudden loading on connected equipment, minimizing the risk of damage or accelerated wear on gears, bearings, and other components.
- Controlling Torsional Vibrations: In systems where torsional vibrations are a concern, certain types of flexible couplings are designed to address this issue. These couplings help control torsional vibrations, which can be damaging to the equipment and cause premature failure.
- Thermal Expansion Compensation: When the equipment operates at different temperatures, thermal expansion can lead to misalignment between the shafts. A flexible coupling can accommodate the thermal expansion, ensuring that the connected equipment remains aligned and preventing stress on the components.
- Isolation from External Forces: External forces like impact loads or shaft disturbances can affect the connected equipment. A flexible coupling isolates the equipment from these external forces, protecting it from potential damage.
By providing these essential functions, a flexible coupling helps extend the lifespan of connected equipment by reducing wear and tear, preventing premature failures, and ensuring smooth, reliable operation. The longevity of the connected equipment ultimately results in reduced maintenance costs and increased productivity.
Can flexible couplings be used in precision manufacturing equipment, such as CNC machines?
Yes, flexible couplings can be used in precision manufacturing equipment, including CNC (Computer Numerical Control) machines. CNC machines require high accuracy and precision during operation to produce complex and intricate parts. Flexible couplings play a vital role in such equipment by providing various benefits that enhance their performance and reliability.
- Compensation for Misalignment: CNC machines often have multiple moving parts and axes that need precise alignment. Flexible couplings can accommodate small misalignments between these components, ensuring smooth and reliable power transmission without inducing additional stress or strain on the system.
- Vibration Damping: Precision manufacturing requires minimizing vibrations that could affect the quality of the finished product. Flexible couplings with damping properties can absorb and dissipate vibrations, resulting in better surface finishes and accuracy of the machined parts.
- Torsional Flexibility: CNC machines may experience torque fluctuations during acceleration, deceleration, or tool changes. Flexible couplings with torsional flexibility can handle these variations and prevent torsional vibrations from affecting the machining process.
- Backlash Compensation: Some types of flexible couplings, such as beam couplings, offer minimal or near-zero backlash. This characteristic is essential in CNC machines, as it helps maintain positional accuracy during direction changes and reversals.
- High Torque Transmission: CNC machines may require high torque transmission capabilities, especially in heavy-duty cutting or milling operations. Flexible couplings can handle substantial torque loads while still providing flexibility to address misalignments.
- Reduced Maintenance: With the ability to absorb shocks and compensate for misalignment, flexible couplings can extend the life of other mechanical components in the CNC machine, reducing overall maintenance requirements and downtime.
It’s important to select the appropriate type and size of flexible coupling based on the specific requirements of the CNC machine, including torque, speed, misalignment, and environmental conditions. Regular maintenance and inspection of the flexible couplings will ensure optimal performance and contribute to the overall precision and efficiency of the CNC machine.
What is a flexible coupling and how does it work?
A flexible coupling is a mechanical device used to connect two shafts while allowing for relative movement between them. It is designed to transmit torque from one shaft to another while compensating for misalignment, vibration, and shock. Flexible couplings are essential components in various rotating machinery and systems, as they help protect the connected equipment and enhance overall performance.
Types of Flexible Couplings:
There are several types of flexible couplings, each with its unique design and characteristics. Some common types include:
- Jaw Couplings: Jaw couplings feature elastomer spiders that fit between two hubs. They can accommodate angular and parallel misalignment while dampening vibrations.
- Disc Couplings: Disc couplings use thin metallic discs to connect the shafts. They are highly flexible and provide excellent misalignment compensation.
- Gear Couplings: Gear couplings use gear teeth to transmit torque. They offer high torque capacity and can handle moderate misalignment.
- Beam Couplings: Beam couplings use a single piece of flexible material, such as a metal beam, to transmit torque while compensating for misalignment.
- Bellows Couplings: Bellows couplings use a bellows-like structure to allow for axial, angular, and parallel misalignment compensation.
- Oldham Couplings: Oldham couplings use three discs, with the middle one having a perpendicular slot to allow for misalignment compensation.
How a Flexible Coupling Works:
The operation of a flexible coupling depends on its specific design, but the general principles are similar. Let’s take the example of a jaw coupling to explain how a flexible coupling works:
- Two shafts are connected to the coupling hubs on either side, with an elastomer spider placed between them.
- When torque is applied to one shaft, it causes the spider to compress and deform slightly, transmitting the torque to the other shaft.
- In case of misalignment between the shafts, the elastomer spider flexes and compensates for the misalignment, ensuring smooth torque transmission without imposing excessive loads on the shafts or connected equipment.
- The elastomer spider also acts as a damping element, absorbing vibrations and shocks during operation, which reduces wear on the equipment and enhances system stability.
Overall, the flexibility and ability to compensate for misalignment are the key features that allow a flexible coupling to function effectively. The choice of a specific flexible coupling type depends on the application’s requirements, such as torque capacity, misalignment compensation, and environmental conditions.
editor by CX 2024-03-09