China wholesaler CZPT Axial Restrained Straub Coupling with Copper Anchoring Teeth

Product Description

Product Description


GREAT WALL Stainless Steel Straub Coupling with Copper Anchoring Teeth is high performance coupling suitable for varied pipe systems. 
Our Coupling provide Axial Restraint for Pipe Connection . 
Our straub couplings used to join Metal Pipe to Metal Pipe or Metal Pipe to Plastic Pipe or Plastic Pipe to Plastic Pipe .
They are mainly used for building construction or civil engineering, power plants and etc .
This pipe joining coupling absorbs unexpected field stress and applies perfect for seismic retrofits 
All of our Coupling designated with GRIP have axial restraint .
In order to able to absorb the axial forces arising from the internal pressure, 
anchoring teeth engage in the relevant pipe materials and provide a mechanical frictional connection.
If the axial tensile load on the pipe increases due to increasing internal pressure, 
the teeth engage deeper inot the pipe surface .
 These flexible and lightweight Couplings come fully assembled and can be installed without using any special tools .

1. Briefs : 

*  Mainly used for varied pipe connection
*  Specific designed for plastic pipe such as PE, PVC, PPR, HDPE pipe 
*  Suit for water, gas, industry pipeline 

2. Features :

*   used for connection of 2 plastic pipe or the connection between plastic pipe and metalic pipe
*   also used for the leaking pipe repair 
*   allow angular deflection and provide restraint 
*   anticorrosive
*    easy installation and disassembly 

3.  Dimension Sheet : 

S/N Pipe OD O. D Range Pressure Coupling Length Screw Torque
  mm mm bar mm Nm
1 63 21-23 20 75 25
2 75 26-28 20 105 30
3 90 33-35 20 105 40
4 110 42-44 20 120 40
5 125 47-49 20 120 50
6 140 56-58 20 120 50
7 160 59-62 20 120 60
8 180 62-64 16 152 60
9 200 75-78 16 152 60
10 225 79-81 16 152 60
11 250 88-92 16 152 60
12 280 106-110 16 152 60
13 315 112-116 16 152 60
14 355 116-119 16 152 60
15 400 123-126 12 152 60
16 450 131-134 12 152 60
17 500 137-143 12 152 70
18 560 157-161 10 152 70
19 630 163-166 10 152 70
20 800 166-170 10 152 80

Note: we accept your specific dimensions which are not included in the above list .

tooth coupling

Misaligned Tooth Couplings: Challenges and Mitigation

Misalignment in tooth couplings can lead to various challenges that affect coupling performance and equipment reliability. Here are some challenges that can arise from misaligned tooth couplings and how they can be mitigated:

1. Increased Wear: Misalignment causes uneven loading and increased stress on the teeth of the coupling, leading to accelerated wear and potential tooth damage.

2. Reduced Efficiency: Misaligned couplings can result in energy losses due to increased friction and inefficient torque transmission.

3. Vibration and Noise: Misalignment can induce vibration and noise in the machinery system, affecting both operator comfort and equipment lifespan.

4. Premature Failure: Excessive misalignment can lead to premature coupling failure and unexpected downtime.

To mitigate these challenges, consider the following steps:

1. Proper Alignment: Ensure that the connected shafts are aligned within the specified tolerances. Use alignment tools and techniques to achieve accurate shaft alignment.

2. Regular Inspection: Perform routine inspections of the coupling to detect any signs of wear, damage, or misalignment. Address any issues promptly.

3. Lubrication: Proper lubrication reduces friction and wear, especially in misaligned conditions. Follow manufacturer guidelines for lubrication frequency and type.

4. Coupling Maintenance: Follow recommended maintenance practices provided by the coupling manufacturer to extend its lifespan and performance.

By addressing misalignment issues proactively and following proper maintenance practices, you can ensure the optimal performance and longevity of tooth couplings in your machinery systems.

tooth coupling

Diagnosing and Addressing Issues with Tooth Couplings

Diagnosing and addressing issues related to tooth couplings within machinery systems involves a systematic approach to troubleshooting and maintenance:

  • Visual Inspection: Regularly inspect tooth couplings for signs of wear, damage, misalignment, or corrosion.
  • Abnormal Noises: Unusual noises during operation, such as grinding or clanking sounds, may indicate problems with tooth engagement or misalignment.
  • Vibration Analysis: Excessive vibration can be a sign of misalignment or other issues. Use vibration analysis tools to identify the source of vibration.
  • Temperature Monitoring: Elevated temperatures could point to problems like inadequate lubrication or excessive friction.
  • Lubrication Analysis: Monitor the quality and level of lubrication to ensure proper coupling function and minimize wear.
  • Alignment Check: Periodically check and adjust the alignment of connected shafts to prevent excessive load on the tooth coupling.
  • Torque Measurement: Measure the transmitted torque to ensure it is within the coupling’s rated capacity.
  • Replacement of Components: If wear or damage is detected, replace worn or damaged components promptly to prevent further issues.
  • Professional Expertise: If problems persist or are beyond your expertise, consult with coupling manufacturers or specialists for guidance.

By regularly monitoring and addressing potential issues, you can ensure the reliable performance and longevity of tooth couplings in machinery systems.

tooth coupling

Proper Installation and Maintenance of Tooth Couplings

To ensure the proper function and longevity of a tooth coupling, follow these guidelines:


  • Ensure shafts are aligned within manufacturer specifications to prevent excessive loads on the coupling.
  • Clean and inspect the coupling components before installation to avoid debris or contaminants.
  • Use appropriate tools and methods to achieve proper fit between the coupling and the shafts.
  • Follow the manufacturer’s instructions for tightening bolts or fasteners to the recommended torque.


  • Regularly inspect the coupling for signs of wear, such as tooth damage, corrosion, or misalignment.
  • Check for any abnormal vibrations, noise, or overheating during operation, which could indicate coupling issues.
  • Keep the coupling and surrounding area clean to prevent the accumulation of dirt or debris.
  • Regularly lubricate the coupling as per the manufacturer’s recommendations to reduce friction and wear.
  • Monitor the alignment of the connected equipment and address any misalignment promptly.
  • Replace worn or damaged components promptly to avoid further damage and maintain coupling performance.

Following proper installation and maintenance practices will help maximize the efficiency and service life of the tooth coupling.

China wholesaler CZPT Axial Restrained Straub Coupling with Copper Anchoring Teeth  China wholesaler CZPT Axial Restrained Straub Coupling with Copper Anchoring Teeth
editor by CX 2023-10-17