Product Description

FOUR COLORS AVAILANLE: RED ,ORANGE ,GALVANIZED ,BLUE  FOR GROOVED COUPLINGS ….
1.All grooved fitting FM UL approved 
2.grooved fitting Size:1-12″ 
3.Material:ductile iron ASTM-A536 Grade 65-45-12
4.Surface :painting,epoxy,hot dip galvanzed grooved fittings
5.Gasket : EDPM , tempersture Range : (-34—-+110ºC)

                  SILICON , tempersture Range : (-40—-+177ºC)

                  NITRILE, tempersture Range : (-29—-+82ºC)

Ductile flexible coupling ,ductile iron flexible coupling / galvanized rigid coupling / grooved fittings

 

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  1¼	42.4  1.669	300  2.07	65  2.559	105  4.133	45  1.772
40  1½	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  2½	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

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How Does a Rigid Coupling Protect Connected Equipment from Shock Loads and Vibrations?

Rigid couplings play a crucial role in protecting connected equipment from shock loads and vibrations by providing a direct and rigid connection between the shafts. The design and properties of rigid couplings contribute to their ability to mitigate the impact of shock loads and vibrations in the following ways:

– High Stiffness: Rigid couplings are constructed from materials with high stiffness, such as steel or aluminum. This high stiffness allows them to resist deformation and bending under load, ensuring that the coupling remains stable and maintains its shape. As a result, the shock loads and vibrations are not amplified or transferred to the connected equipment.

– Immediate Torque Transmission: Rigid couplings provide immediate torque transmission between the shafts without any backlash or play. When the connected machinery experiences a sudden shock load, the rigid coupling effectively transfers the torque to the other side of the coupling without delay. This rapid and precise torque transfer prevents the shock load from causing misalignment or damaging the equipment.

– Elimination of Damping: Unlike flexible couplings, which can dampen vibrations to some extent, rigid couplings do not have any damping properties. While damping can be beneficial in certain applications, it can also allow vibrations to persist, potentially affecting the performance and reliability of the connected equipment. Rigid couplings do not introduce any additional damping, ensuring that the vibrations are not prolonged.

– Stable Connection: Rigid couplings create a stable and unyielding connection between the shafts, limiting any relative movement. This stability prevents the propagation of vibrations from one shaft to another, reducing the potential for resonance and vibration amplification.

– Minimal Maintenance: Rigid couplings require minimal maintenance due to their simple and durable design. Unlike flexible couplings that may have wear-prone elements, rigid couplings do not have parts that need regular replacement. This reliability and low maintenance contribute to their ability to provide continuous protection against shock loads and vibrations.

In applications where shock loads and vibrations are prevalent, using a rigid coupling can help protect critical machinery and components from damage and premature failure. By providing a rigid and immediate torque transmission, rigid couplings effectively isolate the connected equipment from the harmful effects of shock loads and vibrations, ensuring smooth operation and enhanced reliability.

Impact of Rigid Coupling on the Overall Reliability of Connected Equipment

A rigid coupling plays a crucial role in enhancing the overall reliability of connected equipment in mechanical systems. Here’s how it positively impacts reliability:

1. Power Transmission Efficiency: Rigid couplings provide a direct and efficient connection between the shafts of the connected equipment. With no flexible elements, there is minimal power loss, ensuring efficient power transmission from one shaft to another.

2. Elimination of Backlash: Rigid couplings have zero backlash, which is crucial in precision applications. Backlash, which is the play or clearance between connected components, can cause inaccuracies in motion control systems. With a rigid coupling, any movement is directly transferred, maintaining precise positioning.

3. Zero-Maintenance Option: Some rigid couplings are designed to be maintenance-free. They do not require lubrication or periodic adjustments, reducing downtime and ensuring continuous operation.

4. High Torque Transmission: Rigid couplings can handle high torque loads, making them suitable for heavy-duty applications. Their robust construction ensures reliable torque transmission without failure or slippage.

5. Resistant to Misalignment: While rigid couplings offer no flexibility, they are excellent at handling axial misalignment and angular misalignment, provided it falls within their design limits. This ability to tolerate some misalignment enhances reliability and reduces the risk of component damage.

6. Vibration Damping: The stiffness of rigid couplings aids in damping vibrations generated during operation. By minimizing vibrations, the coupling helps protect connected equipment from excessive stress and fatigue failure.

7. Increased System Stiffness: Rigid couplings contribute to the overall stiffness of the mechanical system. This stiffness improves the dynamic response of the system and reduces the likelihood of resonance, leading to more reliable operation.

8. Simple and Compact Design: Rigid couplings have a straightforward and compact design, which reduces the chances of component failure or wear. Their simplicity makes them easy to install and maintain, further enhancing system reliability.

9. Suitable for High-Speed Applications: Rigid couplings are well-suited for high-speed applications due to their ability to maintain accurate shaft alignment and transmit torque efficiently.

10. Compatibility with Various Industries: Rigid couplings find applications in a wide range of industries, including automotive, aerospace, manufacturing, and more. Their versatility and reliability make them a popular choice in demanding industrial environments.

Overall, the use of a properly selected and installed rigid coupling enhances the reliability of connected equipment by providing a robust and efficient connection between shafts. It ensures precise power transmission, reduced maintenance requirements, and improved system performance, leading to increased overall reliability and uptime of the mechanical system.

Advantages of Using Rigid Couplings in Mechanical Systems:

Rigid couplings offer several advantages when used in mechanical systems. These advantages make them a preferred choice in certain applications where precise alignment and high torque transmission are essential. Here are the key advantages of using rigid couplings:

• 1. High Torque Transmission: Rigid couplings are designed to handle high torque and power transmission without any loss due to flexibility. They provide a direct and solid connection between shafts, allowing for efficient transfer of rotational motion.
• 2. Precise Alignment: Rigid couplings maintain precise alignment between connected shafts. When installed correctly, they ensure that the two shafts are perfectly aligned, which is crucial for applications where accurate positioning and synchronization are required.
• 3. Synchronous Rotation: The rigid connection provided by these couplings enables synchronous rotation of the connected shafts. This is particularly important in applications where components must move in precise coordination with each other.
• 4. Simple Design: Rigid couplings have a straightforward design with minimal moving parts. This simplicity makes them easy to install and maintain, reducing the chances of mechanical failure.
• 5. Cost-Effective: Compared to some other coupling types, rigid couplings are generally more cost-effective. Their simple design and robust construction contribute to their affordability.
• 6. High Strength and Durability: Rigid couplings are typically made from strong and durable materials such as steel, stainless steel, or aluminum. These materials can withstand heavy loads and provide long-lasting performance in demanding applications.

Rigid couplings are commonly used in various industries and applications, including high-precision machinery, robotics, automation systems, precision motion control, and machine tools. They are especially beneficial in scenarios where misalignment needs to be minimized or avoided altogether.

It’s important to note that while rigid couplings offer these advantages, they are not suitable for applications where shaft misalignment or shock absorption is required. In such cases, flexible couplings or other specialized coupling types may be more appropriate.

editor by CX 2024-04-26