China Custom FM UL Approved 3″ Ductile Iron Grooved Flexible Coupling

Product Description

4 colors choice: Red ,Orange ,Blue ,Galvanized Of Rigid Coupling ……
ductile iron rigid coupling / fire fitting coupling / grooved fittings

1.FM UL approved  of  All Grooved Coupling
2.Size:1-12″ for all grooved fitting
3.Grooved Coupling Material:ductile iron  ASTM-A536 Grade 65-45-12
4.Grooved Coupling Surface :painting,epoxy,hot dip galvanzed rigid coupling
5.Gasket for Grooved Coupling : CHINAMFG ,slicon
Ductile Iron Rigid Coupling , flexible grooved coupling
 
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 .

                                                                                                         SIZE
 

Rated diameter (mm) Outside diameter (mm) Rated pressure (Mpa) Length (mm) Weight(kg) Rated diameter (mm) Outside diameter (mm) Rated pressure (Mpa) Length (mm) Weight (kg)
40×32 48×42 2.5 60 1.25 150×125 165×133 2.5 142 9.68
65×50 76×60 90 2.72 150×125 165×140 9.72
80×50 89×60 94 2.85 200×100 219×108 179 15.67
80×65 89×76 3.18 200×100 219×114 15.98
100×50 114×60 104 3.72 200×125 219×140 16.93
100×65 114×76 4.31 200×150 219×159 18.9
100×80 114×89 4.46 200×150 219×165 19.24
125×50 140×60 122 5.52 250×100 273×114 215 20.86
125×65 140×76 5.58 250×125 273×140 24.59
125×80 140×89 5.71 250×150 273×165 25.34
125×100 140×108 6.85 250×200 273×219 26.46
125×100 140×114 6.91 300×100 325×114 245 43.8
150×50 165×60 142 7.74 300×150 325×159 44.3
150×65 165×76 7.91 300×150 325×165 45.2
150×80 165×89 8.55 300×200 325×219 46.8
150×100 165×108 8.71 300×250 325×273 48.6
150×100 165×114 8.79  

                                                                                  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 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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flexible coupling

Can flexible couplings be used in precision motion control systems?

Yes, flexible couplings can be used in precision motion control systems, but careful consideration must be given to their selection and application. Precision motion control systems require high accuracy, repeatability, and minimal backlash. Flexible couplings can play a crucial role in such systems when chosen appropriately and used in the right conditions.

Selection Criteria: When selecting a flexible coupling for a precision motion control system, several key factors should be considered:

  • Backlash: Look for couplings with minimal or no backlash to ensure accurate motion transmission and precise positioning.
  • Torsional Stiffness: Choose a coupling with sufficient torsional stiffness to minimize torsional deflection and maintain accurate motion control.
  • Misalignment Compensation: Ensure the coupling can accommodate the required misalignment without introducing significant variations in motion accuracy.
  • Dynamic Performance: Evaluate the coupling’s dynamic behavior under varying speeds and loads to ensure smooth and precise motion control during operation.
  • Material and Construction: Consider the material and construction of the coupling to ensure it can withstand the specific environmental conditions and loads of the motion control system.
  • Size and Space Constraints: Choose a compact and lightweight coupling that fits within the available space and does not add excessive inertia to the system.

Applications: Flexible couplings are commonly used in precision motion control systems, such as robotics, CNC machines, semiconductor manufacturing equipment, optical systems, and high-precision measurement instruments. They help transmit motion from motors to various components, such as lead screws, spindles, or precision gears, while compensating for misalignments and providing shock and vibration absorption.

Specialized Couplings: For ultra-high precision applications, specialized couplings, such as zero-backlash or torsionally rigid couplings, may be preferred. These couplings are designed to provide precise motion transmission without any play or torsional deflection, making them suitable for demanding motion control tasks.

Installation and Alignment: Proper installation and alignment are critical to achieving optimal performance in precision motion control systems. Precise alignment of the coupling and connected components helps maintain accurate motion transmission and minimizes eccentricities that could impact the system’s precision.

Summary: Flexible couplings can indeed be used in precision motion control systems when chosen and applied correctly. By considering factors like backlash, torsional stiffness, misalignment compensation, and dynamic performance, users can select the right coupling to ensure high accuracy, repeatability, and reliable motion control in their specific application.

flexible coupling

How does a flexible coupling accommodate changes in shaft alignment due to thermal expansion?

Flexible couplings are designed to accommodate changes in shaft alignment that occur due to thermal expansion in rotating machinery. When equipment operates at elevated temperatures, the materials used in the shafts and other components expand, causing shifts in the relative positions of the connected shafts. This thermal expansion can lead to misalignment, which, if not addressed, may result in additional stress on the equipment and premature wear.

Flexible couplings employ specific design features that allow them to handle thermal-induced misalignment effectively:

  • Flexibility: The primary feature of a flexible coupling is its ability to flex and deform to some extent. This flexibility allows the coupling to absorb small amounts of angular, parallel, and axial misalignment that may result from thermal expansion. As the shafts expand or contract, the flexible coupling compensates for the misalignment, helping to maintain proper alignment between the two shafts.
  • Radial Clearance: Some flexible couplings, such as elastomeric couplings, have radial clearance between the coupling’s mating parts. This radial clearance provides additional room for the shafts to move laterally during thermal expansion without creating excessive forces on the coupling or connected equipment.
  • Sliding Elements: Certain flexible couplings feature sliding elements that can move relative to each other. This capability allows the coupling to accommodate axial displacement resulting from thermal expansion or other factors.
  • Flexible Element Materials: The materials used in the flexible elements of the coupling are chosen for their ability to handle the temperature range experienced in the application. Elastomeric materials, for example, can be selected to withstand high temperatures while still maintaining their flexibility.

It is essential to understand that while flexible couplings can compensate for some degree of thermal-induced misalignment, there are limits to their capabilities. If the thermal expansion exceeds the coupling’s compensating range, additional measures, such as incorporating expansion joints or using specialized couplings designed for greater misalignment compensation, may be necessary.

When selecting a flexible coupling for an application with potential thermal expansion, it is crucial to consider the expected operating temperature range and the level of misalignment that may occur due to thermal effects. Working with coupling manufacturers and consulting coupling catalogs can help in choosing the most suitable coupling type and size for the specific thermal conditions of the machinery.

flexible coupling

How do you select the appropriate flexible coupling for a specific application?

Choosing the right flexible coupling for a specific application requires careful consideration of various factors to ensure optimal performance, reliability, and longevity. Here are the key steps to select the appropriate flexible coupling:

  1. Application Requirements: Understand the specific requirements of the application, including torque and speed specifications, misalignment conditions, operating environment (e.g., temperature, humidity, and presence of corrosive substances), and space limitations.
  2. Torque Capacity: Determine the maximum torque that the coupling needs to transmit. Choose a flexible coupling with a torque rating that exceeds the application’s requirements to ensure a safety margin and prevent premature failure.
  3. Misalignment Compensation: Consider the type and magnitude of misalignment that the coupling needs to accommodate. Different coupling designs offer varying degrees of misalignment compensation. Select a coupling that can handle the expected misalignment in the system.
  4. Vibration Damping: If the application involves significant vibrations, choose a flexible coupling with good damping properties to reduce vibration transmission to connected equipment and improve system stability.
  5. Environmental Factors: Take into account the environmental conditions in which the coupling will operate. For harsh environments, consider couplings made from corrosion-resistant materials.
  6. Torsional Stiffness: Depending on the application’s requirements, decide on the desired torsional stiffness of the coupling. Some applications may require high torsional stiffness for precise motion control, while others may benefit from a more flexible coupling for shock absorption.
  7. Cost and Life-Cycle Considerations: Evaluate the overall cost-effectiveness of the coupling over its expected life cycle. Consider factors such as initial cost, maintenance requirements, and potential downtime costs associated with coupling replacement.
  8. Manufacturer Recommendations: Consult coupling manufacturers and their technical specifications to ensure the selected coupling is suitable for the intended application.
  9. Installation and Maintenance: Ensure that the selected flexible coupling is compatible with the equipment and shaft sizes. Follow the manufacturer’s installation guidelines and recommended maintenance practices to maximize the coupling’s performance and longevity.

By following these steps and carefully evaluating the application’s requirements, you can select the most appropriate flexible coupling for your specific needs. The right coupling choice will lead to improved system performance, reduced wear on equipment, and enhanced overall reliability in various mechanical systems and rotating machinery.

China Custom FM UL Approved 3China Custom FM UL Approved 3
editor by CX 2024-02-01

flexible disc coupling

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

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