Product Description

Rigid Conduit Couplings

General     

  The rigid conduit coupling is used to connect the electrical steel conduits together, thus extending the length of the conduit pipe. It is manufactured from seamless steel pipes according to ANSI C80.1 and UL6 standards with UL certificate number of E308290. Its trade size can be from 1/2″ to 6″. We can make the rigid conduit coupling zinc plate on both outer side and inner side. The internal surface can also be electro-galvanized completely .

Detailed Product Description

  • Standard: UL6 & ANSI C80.1
  • Certificates: UL Listed, certificate No.E308290 (177709-001)
  • Trade Size: From 1/2″ to 6″
  • Usage:Used in Rigid Metal Conduit
  • Surface: Zinc plate on both out side and inner side, or hot dipped galvanzied and zinc plate on out side and zinc plate on inner side
  • Material: Seamless Steel Pipe
  • Package:  Carton
  • Delivery Time: 20 to 30 days after we receive your advance payment or copy of L/C
  • Payment Term: L/C at sight or T/T

Dimension and Weight Chart

Trade Size Weight Per 100 pcs Outside Diameter “B”  Minimum Acceptable Legnth”A” Standard Carton Qty Weight Per Carton
KG LBS mm in. mm in. PCS KG LBS
1/2″  6.35 14 25.7 1.01 41.3 1.626 400 25.4 56
3/4″  9.07 20 31.8 1.25 41.7 1.642 300 27.2 60
1″  14.06 31 38.7 1.53 50 1.969 180 25.3 56
1-1/4″  17.69 39 47.5 1.87 51.6 2.031 100 17.7 39
1-1/2″  25.4 56 54.7 2.16 52.4 2.063 75 19.1 42
2″  33.11 73 67.3 2.65 54 2.126 60 19.9 44
2-1/2″  83.92 185 82.6 3.25 81 3.189 12 10.1 22
3″  102.51 226 98.3 3.87 84.1 3.311 8 8.2 18
3-1/2″  162.39 358 114.3 4.5 86.5 3.406 4 6.5 14
4″  181.44 400 123.8 4.88 89.3 3.516 4 7.3 16
5″  225.44 497 152.4 6 100.4 3.953 2 4.5 10
6″  370.1 816 182.9 7.2 108 4.252 3 11.1 24

   

 

Company Information

    HangZhou East Steel Pipe Co., Ltd is nearly about 60 years old and located in the worldly kite capital -HangZhou city in ZheJiang Province, which is about 156 kilometers far from HangZhou port. It was originated from the socialism cooperative in 1954, then developed into the state-owned enterprise, which was named as HangZhou Steel Pipe company in 1976. In 2001, HangZhou Steel Pipe company was restructured to be the private enterprise and renamed as HangZhou East Steel Pipe Co.,Ltd.

    HangZhou East Steel Pipe Co.,Ltd, which occupies about 254,000 square meters, has a total capital of USD80 million and annual comprehensive output of 200,000 tons. Now it owns 800 employees, including 300 senior/intermediate engineers and professional technicians.

    Now our electrical products include Rigid Steel Conduit ,Rigid Aluminum Conduit, IMC Conduit, EMT Conduit and Conduit fittings such as elbow, nipple, coupling, etc., and our products have been exported to more than 51 countries in the world, including North America, Middle America, South America, Asia, Middle East, Europe, etc. We are always appreciated by our clients for good quality and excellent services.

  • Fast Facts About HangZhou East Steel Pipe Co.,Ltd.

          -The largest rigid steel conduit producer in China

        -The only producer of Hot Dip Galvanized EMT conduit in the world.

        -The professional manufacturer of conduit accessories in China

 

UL6 Products

FAQ

Q1. Are you a manufacturer or trading company?

A: We are a manufacturer specializing in steel pipe related products for more than 20 years in domestic market, so we can provide products stably for a long time with lower price.

 

Q2.Can you provide free sample for our test?

A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. You only need to bear the freight and the sample will be sent out within 7 days.

 

Q3. Do you have any MOQ limit for production?

A: The order quantity minimum requirement is a 20 GP container. As for our steel pipe product, we usually use container transport for lower freight. 

 

Q4. How to proceed an order for product?

A: Firstly let us know your requirements or application.

Secondly we quote according to your requirements or our suggestions.

Thirdly buyer confirms the samples(if you need) and places deposit for formal order.

Finally we arrange the production.

 

Q5. Is it OK to print my logo on the product or the carton packing?

A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

 

Q6. How to deal with the faulty?

A: We sincerely welcome you to investigate our factory and inspect the goods. Our products are produced in strict quality control system and the defective rate is low.

Also, if you have any questions or dissatisfaction, please feel free to contact us. We will serve you as soon as possible and give you a satisfactory solution.

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rigid coupling

Are There Any Safety Considerations When Using Rigid Couplings in Rotating Machinery?

Yes, there are several safety considerations to keep in mind when using rigid couplings in rotating machinery. While rigid couplings offer various advantages, their use in certain applications requires careful attention to safety measures to prevent accidents and equipment damage. Here are some important safety considerations:

Secure Installation: Proper installation of rigid couplings is crucial to ensure safety. The coupling must be securely mounted and aligned with the shafts to prevent any slippage or disengagement during operation. Use of appropriate mounting hardware, such as high-strength bolts, is essential to maintain the coupling’s integrity under high-speed and high-torque conditions.

Shaft Alignment: Accurate shaft alignment is necessary to avoid excessive forces and stress on the connected machinery. Misaligned shafts can lead to uneven loading and increased wear on bearings and other components. Regularly inspect and maintain the shaft alignment to prevent premature failures.

Preventing Over-Torquing: Applying excessive torque during the installation of rigid couplings can lead to equipment damage and compromise safety. Follow the manufacturer’s torque specifications and use torque-limiting tools to prevent over-torquing and potential failures.

Protective Guards: In some applications, rotating machinery with rigid couplings may pose a safety hazard to personnel working nearby. Install appropriate protective guards and covers to prevent accidental contact with rotating shafts, minimizing the risk of injury.

Regular Maintenance: Implement a routine maintenance schedule to inspect the rigid couplings and associated equipment. Check for signs of wear, fatigue, or cracks. Address any issues promptly to avoid potential catastrophic failures.

Operational Speed Limits: Be aware of the operational speed limits specified by the manufacturer for the rigid couplings. Exceeding these limits can result in significant stress and fatigue on the coupling, leading to failure.

Appropriate Coupling Selection: Choose the appropriate type and size of rigid coupling for the specific application. Using an undersized coupling can lead to excessive loads and potential failure, while an oversized coupling may not efficiently transmit torque.

Temperature Considerations: Rigid couplings can experience temperature variations during operation. Ensure that the material and design of the coupling are suitable for the anticipated temperature range of the application to maintain safety and performance.

Training and Awareness: Provide proper training to personnel working with rotating machinery equipped with rigid couplings. Ensure they are aware of safety procedures and potential hazards associated with the equipment.

Adhering to these safety considerations will help ensure the safe and reliable operation of rotating machinery equipped with rigid couplings. Regular maintenance, correct installation, and diligent attention to safety guidelines will minimize risks and contribute to a safe working environment.

rigid coupling

Can Rigid Couplings Be Used in Applications with Varying Operating Temperatures?

Rigid couplings are versatile mechanical components that can be used in a wide range of applications, including those with varying operating temperatures. However, the selection of the appropriate material for the rigid coupling is crucial to ensure its reliable performance under different temperature conditions.

Material Selection: The choice of material for the rigid coupling depends on the specific operating temperature range of the application. Common materials used in manufacturing rigid couplings include steel, stainless steel, and aluminum, among others. Each material has its own temperature limitations:

Steel: Rigid couplings made from steel are suitable for applications with moderate to high temperatures. Steel couplings can handle temperatures ranging from -40°C to around 300°C, depending on the specific grade of steel used.

Stainless Steel: Stainless steel rigid couplings offer higher corrosion resistance and can be used in applications with more demanding temperature environments. They can withstand temperatures from -80°C to approximately 400°C.

Aluminum: Aluminum rigid couplings are commonly used in applications with lower temperature requirements, typically ranging from -50°C to around 120°C.

Thermal Expansion: When selecting a rigid coupling for an application with varying temperatures, it is essential to consider thermal expansion. Different materials have different coefficients of thermal expansion, meaning they expand and contract at different rates as the temperature changes. If the operating temperature fluctuates significantly, the thermal expansion of the rigid coupling and the connected components must be carefully accounted for to avoid issues with misalignment or binding.

Extreme Temperature Environments: For applications with extremely high or low temperatures beyond the capabilities of traditional materials, specialized high-temperature alloys or composites may be required. These materials can withstand more extreme temperature conditions but may come with higher costs.

Lubrication: The choice of lubrication can also play a role in the suitability of rigid couplings for varying temperature applications. In high-temperature environments, consideration should be given to using high-temperature lubricants that can maintain their effectiveness and viscosity at elevated temperatures.

In conclusion, rigid couplings can indeed be used in applications with varying operating temperatures, but careful material selection, consideration of thermal expansion, and appropriate lubrication are essential to ensure reliable and efficient performance under changing temperature conditions.

rigid coupling

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.

China Good quality Manufacturer UL Electrical Fittings Rigid Coupling  China Good quality Manufacturer UL Electrical Fittings Rigid Coupling
editor by CX 2024-01-10