Rigid Conduit Coupling 4″ 3-1/2″ UL LISTED
1-1/4″ 1-1/2″ UL LISTED IMC Coupling Electro Galvanized 3.0mm Thickness Inside Thread
|ITEM CODE||MATERIAL||Name of Products||SIZE||USED FOR|
|RL-800||STEEL||IMC/RIGID COUPLING||1/2″||IMC RIGID Conduit|
|RL-801||STEEL||IMC/RIGID COUPLING||3/4″||IMC RIGID Conduit|
|RL-802||STEEL||IMC/RIGID COUPLING||1″||IMC RIGID Conduit|
|RL-803||STEEL||IMC/RIGID COUPLING||1-1/4″||IMC RIGID Conduit|
|RL-804||STEEL||IMC/RIGID COUPLING||1-1/2″||IMC RIGID Conduit|
|RL-805||STEEL||IMC/RIGID COUPLING||2″||IMC RIGID Conduit|
1) Remove the inside welded seam to insure the thread accurately
2) NPT standard thread, all will be taper thread
3) Trade size: 1/2″ to 4″
4) Electro galvanized galvanized thickness 15 micrometer,darcromet finish thickness exceeding 40 micrometer exceeding 100 hours curic dip testing
5) UL Listed, can engrave the customer’s brand 1 the products)
IMC coupling,threaded imc conduit coupling,Rigid couplings, threaded rigid couplings, heavy wall couplings, threaded heavy wall couplings, rigid couplers, heavy wall couplers, threaded couplers.conduit socket
These threaded couplings are used to join 2 ends of threaded rigid conduits or IMC conduits together. They can also be used with CHINAMFG nipples and connectors to CHINAMFG threaded conduits to electrical junction boxes or enclosures.
Why Choose Ranlic Conduit Item:
1) High quality material ensures a finish conduit and fittings with superior properties
2) Manufactured by perfect molds and professtional engineer
3) Fitted perfectly with fittings(conduits) for the CNC threading machine
4) 10 years export experience to make sure the perfect shipment date and package
5) Always like to listening customers feedback for the conduit arrived to
customer’s warehouse to improving our service
You may choose following RanLic other Conduit products:
EMT CONDUIT PIPE
IMC CONDUIT PIPE
RIGID CONDUIT PIPE
FLEXIBLE CONDUIT PIPE
LIQUID TIGHT FLEXIBLE CONDUIT
compression emt connector,
Compression emt coupling,
Squeez flexible connector(straight and angle),
Liquid tight connector(straight and angle),
Water tight hub
Service entrance cap
EMTstraps(one and 2 holes)
Strut clamp(for emt imc and rigid)
Beam clamp, emt elbow
Steel outlet box
EMT/IMC/RIGID conduit body
steel and zinc locknut
emt imc rigid elbows
water proof terminal box
Place of Origin:
IMC conduit coupling
100000 Piece/Pieces per Week
Packaging & Delivery
30days CHINAMFG your quantity
Packaging & Shipping
HangZhou Lianli Electrical Co., Ltd.
Background & Purpose:
Lianli Electrical (Trademark: RanLic) has been in electrical conduit industry for more than five years. Since 2571, we have been engaged in the production of general conduits for our customers. Lianli provides clients with quality products and service. Our company is professional in providing quality project solution, new conduit development and general conduit improvement.
We know we have the responsibility to provide the same service to our old customers and keep moving to cooperate with our potential customers. We will keep providing quality products and service.
Emt conduits, imc conduits, rigid conduits, bs4568 conduits, bs31 conduits, steel accessories for conduits, aluminum Die casting conduit fittings, zinc die casting conduit fittings, brass accessories, flexible conduits, etc.
South and Central America: Ecuador, Costa Rica, Dominicana, Uruguay, Mexico, Panama, Colombia, Venezuela and Peru
The Middle East: Saudi Arabia, Qatar, Iraq, Egypt, Bahrain, Morocco and Dubai
Southeast Asia: Thailand, Malaysia, Singapore and the Philippines
North America: the United States & Canada
After 4 years’ development, Lianli has accumulated rich experience in the field.
We are manufacturing all kinds of products as per customers’ requirements. It is our promise to offer qualified products and the best service to our customers.Lianli is willing to cooperate with you hand in hand to create a bright future
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.
Factors to Consider When Choosing a Rigid Coupling for a Specific System
Choosing the right rigid coupling for a specific system is crucial to ensure proper functionality and reliable performance. Several factors should be considered when making this decision:
1. Shaft Size and Compatibility: The most fundamental factor is ensuring that the rigid coupling is compatible with the shaft sizes of the connected components. The coupling should have the appropriate bore size and keyway dimensions to fit securely onto the shafts.
2. Operating Torque: Consider the torque requirements of the application. The rigid coupling should have a torque rating that exceeds the maximum torque expected during operation to prevent failures and ensure safety.
3. Speed: Determine the rotational speed (RPM) of the connected shafts. Rigid couplings have maximum RPM limits, and the selected coupling should be capable of handling the system’s operating speed.
4. Misalignment Tolerance: Assess the potential misalignment between the shafts. Rigid couplings provide no flexibility, so the system must have minimal misalignment to prevent excessive forces on the components.
5. Temperature and Environment: Consider the operating temperature range and the environment where the coupling will be used. Ensure the chosen material can withstand the temperature and any corrosive or harsh conditions present.
6. Space Limitations: Evaluate the available space for the coupling. Rigid couplings have a compact design, but ensure that there is enough clearance for installation and maintenance.
7. Backlash and Torsional Stiffness: In some precision systems, backlash must be minimized to maintain accurate positioning. Additionally, the torsional stiffness of the coupling can impact system response and stability.
8. Keyway or Keyless Design: Decide between a coupling with a keyway or a keyless design based on the specific application requirements and ease of installation.
9. Material Selection: Consider the material properties of the rigid coupling. Common materials include steel, stainless steel, and aluminum, each with its own advantages and limitations.
10. Maintenance: Determine the maintenance requirements of the coupling. Some couplings may need periodic lubrication or inspections, while others may be maintenance-free.
11. Cost: While cost should not be the sole consideration, it is essential to evaluate the cost-effectiveness of the coupling, taking into account its performance and longevity.
By carefully considering these factors, you can select the most suitable rigid coupling for your specific system, ensuring optimal performance, and longevity of your mechanical setup.
Limitations and Disadvantages of Using Rigid Couplings:
Rigid couplings offer several advantages in providing a strong and direct connection between shafts, but they also have certain limitations and disadvantages that should be considered in certain applications:
- No Misalignment Compensation: Rigid couplings are designed to provide a fixed connection with no allowance for misalignment between shafts. As a result, any misalignment, even if slight, can lead to increased stress on connected components and cause premature wear or failure.
- Transmit Shock and Vibration: Rigid couplings do not have any damping or vibration-absorbing properties, which means they can transmit shock and vibration directly from one shaft to another. In high-speed or heavy-duty applications, this can lead to increased wear on bearings and other components.
- No Torque Compensation: Unlike flexible couplings, rigid couplings cannot compensate for torque fluctuations or angular displacement between shafts. This lack of flexibility may not be suitable for systems with varying loads or torque requirements.
- Higher Stress Concentration: Rigid couplings can create higher stress concentration at the points of connection due to their inflexibility. This can be a concern in applications with high torque or when using materials with lower fatigue strength.
- More Challenging Installation: Rigid couplings require precise alignment during installation, which can be more challenging and time-consuming compared to flexible couplings that can tolerate some misalignment.
- Increased Wear: The absence of misalignment compensation and vibration absorption can lead to increased wear on connected components, such as bearings, shafts, and seals.
- Not Suitable for High Misalignment: While some rigid couplings have limited ability to accommodate minor misalignment, they are not suitable for applications with significant misalignment, which could lead to premature failure.
Despite these limitations, rigid couplings are still widely used in many applications where precise alignment and a strong, permanent connection are required. However, in systems with significant misalignment, vibration, or shock loads, flexible couplings may be a more suitable choice to protect the connected components and improve overall system performance and longevity.
editor by CX 2023-11-10