China wholesaler 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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How do flexible couplings handle axial movement in rotating machinery?

Flexible couplings are designed to handle different types of misalignments in rotating machinery, including axial movement or axial misalignment. Axial movement occurs when there is displacement along the axis of rotation, causing one shaft to move closer to or away from the other shaft. Here’s how flexible couplings handle axial movement:

• Sliding Capability: Many flexible couplings, especially those with elastomeric elements or certain designs, can slide along the shafts they connect. This sliding capability allows the coupling to accommodate axial movement without introducing additional stress on the connected components. The elastomeric elements can compress or stretch slightly to absorb the axial displacement.
• Multiple-piece Designs: Some flexible couplings consist of multiple pieces, which allow for axial movement. These designs often have a floating member or a spacer that separates the two shaft-connected components. The floating member can move axially as needed, while still transmitting torque and compensating for other misalignments.
• Double-Cardanic Design: Certain high-performance flexible couplings use a double-cardanic design, allowing for misalignment in multiple directions, including axial movement. This design features two sets of flexible elements that work together to accommodate different misalignments and provide a high degree of flexibility.

It’s important to note that while flexible couplings can handle a certain degree of axial movement, excessive axial misalignment might require a different type of coupling or additional measures to be addressed properly.

During the selection and installation process, it’s essential to consider the application’s axial movement requirements and choose a flexible coupling that can accommodate the expected axial displacement while still providing the desired performance, such as vibration damping, shock absorption, or precision motion control.

Can flexible couplings be used in marine and automotive applications?

Yes, flexible couplings are commonly used in both marine and automotive applications. They offer various advantages that make them suitable for these industries:

• Misalignment Compensation: In marine and automotive systems, there can be misalignments due to factors such as hull flexing in marine vessels or engine movements in vehicles. Flexible couplings can accommodate these misalignments, ensuring efficient power transmission between the engine and the propeller or wheels.
• Vibration Damping: Both marine and automotive environments experience vibrations from engines, propellers, or road conditions. Flexible couplings help dampen these vibrations, reducing wear on components and enhancing the comfort of passengers or crew members.
• Shock Load Absorption: Marine vessels and vehicles can encounter shock loads during operation, especially in rough sea conditions or uneven terrains. Flexible couplings can absorb and dissipate the impact of these shock loads, protecting the drivetrain and transmission components.
• Compact Design: Space is often limited in marine vessels and automotive systems. Flexible couplings come in various compact designs, making them suitable for applications with restricted installation space.
• Corrosion Resistance: Marine environments expose components to corrosive seawater, while automotive systems may encounter exposure to road salt and other corrosive substances. Flexible couplings made from corrosion-resistant materials, such as stainless steel or non-metallic compounds, are ideal for these applications.
• Easy Maintenance: Flexible couplings with self-lubricating features or low maintenance requirements are well-suited for marine and automotive applications, where regular maintenance can be challenging.
• High Torque Capacity: Automotive systems, especially in heavy-duty vehicles, require couplings that can handle high torque levels. Flexible couplings designed for automotive use offer high torque capacity and reliability.

Overall, the adaptability, vibration damping, and misalignment compensation provided by flexible couplings make them suitable for various marine and automotive applications. Whether used in boats, yachts, ships, cars, trucks, or other vehicles, flexible couplings contribute to smooth and reliable power transmission, leading to improved performance and reduced maintenance requirements.

How do flexible couplings compare to other types of couplings in terms of performance?

Flexible couplings offer distinct advantages and disadvantages compared to other types of couplings, making them suitable for specific applications. Here is a comparison of flexible couplings with other commonly used coupling types in terms of performance:

• Rigid Couplings:

Rigid couplings are simple in design and provide a solid connection between two shafts, allowing for precise torque transmission. They do not offer any flexibility and are unable to compensate for misalignment. As a result, rigid couplings require accurate shaft alignment during installation, and any misalignment can lead to premature wear and increased stress on connected equipment. Rigid couplings are best suited for applications where shaft alignment is precise, and misalignment is minimal, such as in well-aligned systems with short shaft spans.

• Flexible Couplings:

Flexible couplings, as discussed previously, excel at compensating for misalignment between shafts. They offer angular, parallel, and axial misalignment compensation, reducing stress on connected components and ensuring smooth power transmission. Flexible couplings are versatile and can handle various applications, from light-duty to heavy-duty, where misalignment, vibration damping, or shock absorption is a concern. They provide a cost-effective solution for many industrial, automotive, and machinery applications.

• Oldham Couplings:

Oldham couplings are effective at compensating for angular misalignment while maintaining constant velocity transmission. They offer low backlash and electrical isolation between shafts, making them suitable for precision motion control and applications where electrical interference must be minimized. However, Oldham couplings have limited capacity to handle parallel or axial misalignment, and they may not be suitable for applications with high torque requirements.

• Gear Couplings:

Gear couplings are robust and can handle high torque levels, making them suitable for heavy-duty applications such as mining and steel mills. They offer good misalignment compensation and have a compact design. However, gear couplings are relatively more expensive and complex than some other coupling types, and they may generate more noise during operation.

• Disc Couplings:

Disc couplings provide excellent misalignment compensation, including angular, parallel, and axial misalignment. They have high torsional stiffness, making them ideal for applications where accurate torque transmission is critical. Disc couplings offer low inertia and are suitable for high-speed applications. However, they may be more sensitive to shaft misalignment during installation, requiring precise alignment for optimal performance.

• Conclusion:

The choice of coupling type depends on the specific requirements of the application. Flexible couplings excel in compensating for misalignment and vibration damping, making them versatile and cost-effective solutions for many applications. However, in situations where high torque, precision, or specific electrical isolation is necessary, other coupling types such as gear couplings, disc couplings, or Oldham couplings may be more suitable. Proper selection, installation, and maintenance of the coupling are essential to ensure optimal performance and reliability in any mechanical system.

editor by CX 2023-12-26