China Professional Grooved Coupling (flexible type)

Product Description

 

Product Name:   
Flexible coupling for connecting fire protection pipes and fittings.

Material:
Ductile cast iron 

Standard: 
UL listed & FM approved
also wen can manufacture different size according to client’s requirement.

Sizes available: 

Nominal size Pipe O.D. Working pressure                   Dimensions  Bolt size
     ∅       L     H
mm in mm in PSI Mpa mm in mm in mm in mm
25 1 33.7 1.327 300 2.07 55.6 2.188 98 3.858 44 1.732 M10*45
32 1 1/4 42.4 1.699 300 2.07 66 2.598 107 4.213 44 1.732 M10*45
40 1 1/2 48.3 1.9 300 2.07 74 2.913 115 4.527 44 1.732 M10*45
50 2 60.3 2.372 300 2.07 84 3.307 124 4.882 44 1.732 M10*55
65 2 1/2 73 2.875 300 2.07 98 3.858 138 5.433 45 1.772 M10*55
65 2 1/2 76.1 3 300 2.07 100 3.937 143 5.63 45 1.772 M10*55
80 3    88.9 3.5 300 2.07 114 4.488 157 6.181 45 1.772 M10*55
100 4    114.3 4.5 300 2.07 140 5.512 187 7.362 50 1.899 M10*65
125 5    139.7 5.5 300 2.07 172 6.771 220 8.661 50 1.899 M12*70
125 5    141.3 5.563 300 2.07 172 6.771 220 8.661 50 1.899 M12*75
150 6    165.1 6.5 300 2.07 197 7.756 252 9.921 51 2.008 M12*75
150 6    168.3 6.625 300 2.07 197 7.756 255 10.039 51 2.008 M12*75
200 8    219.1 8.625 300 2.07 254 10 330 12.992 61 2.405 M16*100
250 10 273 10.75 300 2.07 317 12.48 397.8 15.661 62 2.441 M20*110
300 12 323.9 12.751 300 2.07 370 14.566 457 17.992 60 2.362 M20*120

We can manufacture different size according to your requirement.

About US:
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flexible coupling

What are the cost implications of using flexible couplings compared to other coupling types?

When considering the cost implications of using flexible couplings compared to other coupling types, several factors come into play. While flexible couplings may have a higher upfront cost in some cases, they often offer cost savings in the long run due to their advantages and reduced maintenance requirements.

  • Upfront Cost: In terms of upfront cost, flexible couplings can vary depending on the design, material, and size. Some high-performance flexible couplings with specialized features may have a higher initial cost than simpler coupling types. For instance, certain specialized couplings used in demanding applications like high-speed precision machinery or corrosive environments might be more expensive.
  • Maintenance Costs: Flexible couplings generally have lower maintenance costs compared to certain rigid coupling types. Rigid couplings, such as gear couplings or disc couplings, may require periodic maintenance to check for wear, lubrication, and alignment. In contrast, many flexible couplings, especially those with elastomeric elements, are self-lubricating and require little to no maintenance.
  • Reduced Downtime: Due to their ability to accommodate misalignments and dampen vibrations, flexible couplings can reduce the wear and tear on connected equipment. This reduction in wear can lead to less frequent downtime for repairs or replacements, resulting in improved productivity and cost savings.
  • Longevity: Flexible couplings are designed to absorb shocks and vibrations, which can extend the lifespan of connected equipment. By minimizing stress and wear on components, flexible couplings contribute to the longevity of machinery and reduce the need for premature replacements.
  • Energy Efficiency: Some flexible couplings, such as beam couplings or certain elastomeric couplings, have low mass and inertia, contributing to better energy efficiency in rotating systems. By reducing energy losses, these couplings can result in cost savings over time.
  • Application Specificity: In some cases, specialized coupling types might be necessary to meet specific application requirements. While these specialized couplings may have higher costs, they are designed to optimize performance and reliability in those specific scenarios.
  • Compatibility and Adaptability: Flexible couplings are often more versatile in terms of accommodating shaft misalignment and different shaft sizes. Their adaptability can reduce the need for custom-made or precisely machined components, potentially saving costs in certain installations.

Overall, the cost implications of using flexible couplings compared to other coupling types depend on the specific application and its requirements. While they may have a higher initial cost in some cases, the long-term benefits, such as reduced maintenance, increased equipment longevity, and improved system efficiency, often justify the investment in flexible couplings.

flexible coupling

What are the maintenance intervals and practices for extending the life of a flexible coupling?

Proper maintenance of a flexible coupling is essential to ensure its longevity and reliable performance. The maintenance intervals and practices for flexible couplings may vary depending on the coupling type, application, and operating conditions. Here are some general maintenance guidelines to extend the life of a flexible coupling:

  • Regular Inspection: Conduct visual inspections of the coupling regularly to check for signs of wear, damage, or misalignment. Look for cracks, tears, corrosion, or any other visible issues.
  • Lubrication: Some flexible couplings may require periodic lubrication to reduce friction and wear. Refer to the manufacturer’s guidelines for the appropriate lubrication type and schedule.
  • Alignment Checks: Ensure that the connected shafts remain properly aligned. Misalignment can lead to premature wear and failure of the coupling and other components.
  • Torque Monitoring: Monitor the torque levels in the system and ensure they are within the coupling’s rated capacity. Excessive torque can overload the coupling and cause damage.
  • Temperature and Environmental Considerations: Ensure that the operating temperatures and environmental conditions are within the coupling’s specified limits. Extreme temperatures, aggressive chemicals, or corrosive environments can impact the coupling’s performance.
  • Inspection After Shock Loads: If the system experiences shock loads or unexpected impacts, inspect the coupling for any signs of damage immediately.
  • Replace Damaged or Worn Couplings: If any damage or wear is detected during inspections, replace the flexible coupling promptly to avoid potential failures.
  • Periodic Re-Tightening: For certain coupling designs, periodic re-tightening of fasteners may be necessary to maintain proper clamping force.
  • Follow Manufacturer’s Guidelines: Always follow the maintenance instructions provided by the coupling manufacturer. They can provide specific recommendations based on the coupling model and application.

It is crucial to develop a maintenance plan specific to the application and coupling type. Regularly scheduled maintenance, adherence to recommended practices, and proactive inspection can help identify issues early and prevent costly breakdowns. Additionally, record-keeping of maintenance activities can provide valuable data on the coupling’s performance and aid in future maintenance decisions.

flexible coupling

Can you explain the different types of flexible coupling designs available?

There are several types of flexible coupling designs available, each with its unique construction and characteristics. These designs are tailored to meet specific application requirements and address different types of misalignment and torque transmission needs. Here are some of the most common types of flexible couplings:

  • Jaw Couplings: Jaw couplings consist of two hubs with curved jaws and an elastomer spider placed between them. The spider acts as a flexible element and can compensate for angular and parallel misalignment. Jaw couplings are widely used in various industrial applications due to their simple design and effectiveness in handling misalignment and vibration damping.
  • Disc Couplings: Disc couplings use thin metallic discs with a series of alternating slits and flanges to connect the shafts. The disc coupling design allows for excellent misalignment compensation, including angular, parallel, and axial misalignment. Disc couplings are known for their high torsional stiffness and precise torque transmission capabilities.
  • Gear Couplings: Gear couplings consist of toothed hubs connected by an external sleeve with gear teeth. They are well-suited for applications with high torque and moderate misalignment. Gear couplings offer good misalignment compensation and high torque capacity, making them popular in heavy-duty industrial applications.
  • Beam Couplings: Beam couplings use a single piece of flexible material, often a metal beam, to connect the shafts. The material’s flexibility allows for angular and axial misalignment compensation. Beam couplings are compact, lightweight, and provide low inertia, making them suitable for applications with high-speed requirements.
  • Bellows Couplings: Bellows couplings consist of a bellows-like flexible structure that connects the two hubs. They can compensate for angular, parallel, and axial misalignment. Bellows couplings are known for their high torsional stiffness and ability to maintain constant velocity transmission.
  • Oldham Couplings: Oldham couplings use three discs, with the middle one having a perpendicular slot. This design allows for angular misalignment compensation while transmitting torque between the hubs. Oldham couplings are often used when electrical isolation between shafts is required.

Each flexible coupling design has its strengths and limitations, and the choice depends on factors such as the application’s torque requirements, misalignment conditions, operating environment, and speed. Proper selection of the coupling type ensures optimal performance, efficiency, and reliability in various mechanical systems and rotating machinery.

China Professional Grooved Coupling (flexible type)  China Professional Grooved Coupling (flexible type)
editor by CX 2024-04-24