China OEM PVC/Plastic Rigid Sch 40 Electrical Conduit System Pipe Fifting Coupling Offer OEM

Product Description

 

Trade Size Outside Diameters ( inch – mm ) Minimum Wall Thickness ( inch – mm ) 

inch – mm

Maximum

Minimum

Schedule 40

Schedule 80

1/2 – 16

0.848 – 21.54

0.832 – 21.13

0.109 – 2.77

0.147 – 3.73

3/4 -21

1.060 – 26.92

1.040 – 26.42

0.113 – 2.87

0.154 – 3.91

1 – 27

1.325 – 33.66

1.305 – 33.15

0.133 – 3.38

0.179 – 4.55

1-1/4 – 35

1.672 – 42.47

1.648 – 41.86

0.140 – 3.56

0.191 – 4.85

1-1/2 – 41

1.912 – 48.56

1.888 – 47.96

0.145 – 3.68

0.200 – 5.08

2 – 53

2.387 – 60.63

2.363 – 60.02

0.154 – 3.91

0.218 – 5.54

2-1/2 – 62

2.890 – 73.41

2.860 – 72.64

0.203 – 5.16

0.276 – 7.01

3 – 78

3.515 – 89.28

3.485 – 88.52

0.216 – 5.49

0.300 – 7.62

3-1/2 – 91

4.050 – 102.87

3.950 – 100.33

0.226 – 5.74

0.318 – 8.08

4 – 103

4.550 – 115.57

4.450 – 113.03

0.237 – 6.03

0.337 – 8.56

5 – 129

5.613 – 142.57

5.513 – 140.03

0.258 – 6.55

0.375 – 9.52

6 – 155

6.675 – 169.54

6.575 – 167.00

0.280 – 7.11

0.432 – 10.97

INTRODUCTION

The main raw material of PVC-U piping network is PVC resin, which is added moderate stabilizer, lubricant, fillers, and toner. After the 

process of mixing, extrusion, sizing, cooling, and cutting, the PVC-U pipe can be made. The PVC-U fittings are made by injection. The 

PVC-U material doesn’t readily conduct electricity, which can undertake more than 25KV voltage. The PVC-U material has very good 

chemical properties, physical property and insulating property, which can suit for most of the normal insulation protection 

application. 

This series of PVC-U insulting electrical pipes and fittings are suit for UL standard. 

FEATURES OF PRODUCT

High Insulating Property: 

PVC-U material resists the electricity, which can undertake more than 25KV voltage. 

High Impact Resistance: 

This material of pipes and fittings can suit to be laid in the concrete. 

Non – flammable: 

PVC-U material has high limiting oxygen index, which is very difficult to burn, and has died out by itself, when it is away from the fire. 

Corrosion Resistant: 

PVC-U material has strong resistance to most of acid and alkali. No rust, no antiseptic treatment. The service life is 4 times than that 

of cast iron. 

Light Weight and Easy Installation: 

Weight is very light. The density of PVC-U is only 1/5 to 1/6 of that of cast iron. The method of connection is very simple, and the 

process of installation is very quickly. 

High Tensile Strength: 

PVC-U has high tensile strength, and high shock strength. The piping network of PVC-U is not easy to break, and it works safety. 

Long Service Life: 

The piping network with normal material can be used around 20 to 30 years, but the PVC-U piping network can be used longer than 

50 years. 

Cheaper Prices: 

The price of PVC-U piping network are cheaper than that of cast iron. 

FIELDS OF APPLICATION

Piping networks for power or lighting in building. 

Piping networks for being laid in the concrete or wall. 

Piping networks for post, telecommunications, and network cabling. 

SERVICE

1. We are a manufacturer of plastic tubes and fittings. We accept OEM business.

2. We supply stop valve,pipe end cap,equal/reduceing tee,cold hot water ball valve,union ball valve,threaded elbow(plastic or with metal) and so on.

3. We also supply the connectors Accordingly.

4. We can offer you very competitive prices for some pipes.

5. We welcome you to visit our web and our factory. Your visiting will be highly appreciated.

6. It is my pleasure to help you.

7.If you need more customized services and offers,Please Contact Us.

 

 

MORE PRODUCT

OUR ADVANTAGE
1.high quality&industrial leading price
2.quick order processing & on-time delivery
3.extremely long usage life for at least 5 years
4.innovative & customer-oriented
5.rich experience in exportation
6.best quality & best service with competitive price
7.easy and fast installation, making cost minimized
8.healthy and non-toxic, free of stain,recycable, enviromentally friendly
9.Modern technical equipment in combination with proficient manual work.
10.Lightweight, convenient to transport and handle, good for labor-saving.

ABOUT TIANYAN

(1) CHINAMFG Factory

It is a well-known solution provider for plastic piping system in the world,whose customers come from more than 60 countries and regions.Building piping system application,industrial piping system application,agricultural piping system application,and their professional solutions are the mainly business

(2) Customization
(3) Social Responsibility

(4) 6S Management

(5) Certificate

(6) Process Quality Control
(7) Each Process is CareFully Made

(8) Packing & Delivery


FAQ

1. Are you a manufacture or trading company?
We are a well-known solution provider for plastic piping system in the world with 26 years professional experience. Welcome to visit and investigate us, you would find the difference with others.
2. Do you offer OEM service?
Yes. We have our famous brand name. But we can offer OEM service also, with same quality. We can review and accept customer design, or design based on customer requirements, by our professional R&D team.
3.Why Choose Us?
Trust in our experience.
We supply many different standards professional products for more than 60 countries and areas in the world.
Trust in our authority.
We had many professional inspections and certificates. We had passed inspections of CE,  SGS, and get the certificates of ISO 9001, ISO 14001, OHSAS 18001, and WRAS, and so on.
Trust in our solutions.
We have professional R&D team, QA&QC team, marketing team. We have many patents and awards, can supply highest quality OEM products, and help you and do with you to settle any kind of logistical problems.
Trust in our production capacity.
We have more than 30 pipe extruding machines, and 200 injection molding machines. And those figures still increase each year.
Trust in our financial management capacity.
We obtain the “ZHangZhoug Top Export Brand” by government. We have the ability to make each your US cent efficient. Each cent, which you pay us, would be worth.
4.How to Get a Sample?
Please apply sample.
We can apply free sample for inspection, after the prices confirmed.
Sample is free.
We would supply you sample for free, and freight is collected, if you need a sample to confirm. You also can pay freight to us in advance, and let us prepaid freight, if you thought the prepaid freight is lower than collected freight.
Freight is free.
We will undertake the freight, and pay the money into your deposit, if you give the order to us finally.

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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

How Does a Rigid Coupling Handle Angular, Parallel, and Axial Misalignment?

Rigid couplings are designed to provide a fixed and rigid connection between two shafts. As such, they do not have any built-in flexibility to accommodate misalignment. Therefore, when using a rigid coupling, it is essential to ensure proper shaft alignment to avoid excessive forces and premature wear on connected equipment.

Angular Misalignment: Angular misalignment occurs when the axes of the two shafts are not collinear and form an angle with each other. Rigid couplings cannot compensate for angular misalignment, and any angular misalignment should be minimized during installation. Precision alignment techniques, such as laser alignment tools, are often used to achieve accurate angular alignment.

Parallel Misalignment: Parallel misalignment, also known as offset misalignment, happens when the axes of the two shafts are parallel but have a lateral displacement from each other. Rigid couplings cannot accommodate parallel misalignment. Therefore, precise alignment is crucial to prevent binding and excessive forces on the shafts and bearings.

Axial Misalignment: Axial misalignment occurs when the two shafts have an axial (longitudinal) displacement from each other. Rigid couplings cannot address axial misalignment. To prevent thrust loads and additional stresses on bearings, it is essential to align the shafts axially during installation.

In summary, rigid couplings are unforgiving to misalignment and require precise alignment during installation. Any misalignment in a rigid coupling can lead to increased wear, premature failure of components, and reduced overall system efficiency. Therefore, it is crucial to use appropriate alignment techniques and tools to ensure optimal performance and longevity of the connected equipment.

rigid coupling

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.

China OEM PVC/Plastic Rigid Sch 40 Electrical Conduit System Pipe Fifting Coupling Offer OEM  China OEM PVC/Plastic Rigid Sch 40 Electrical Conduit System Pipe Fifting Coupling Offer OEM
editor by CX 2024-04-16


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