We have received many letters from readers asking some questions in the last couple of weeks, some of them look like ‘fresher’, But some of their questions surprised us a little bit. In addition, we have also done research online to write this post, hoping to help readers or new buyers.
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The electrical conduit is designed to protect wires because the wire is fragile, and there are will cause safety risks after damage. However, there are different sizes and names for different countries and markets, which makes it easy to confuse especially new buyers. In addition, the industry itself has a lot of professional vocabulary and certification standards. For new buyers, We strongly recommended you find a reliable supplier who can avoid many problems. For example, Ctube.
One more thing, we wrote a post for talked about conduit pipe & fittings type on the market last month. You can read the post here for the type of conduit & fittings and how it works.
Ok, let’s get started.
Sunlight PVC pipe used for outdoor project purposes in general.
Well, there are many outdoor use scenarios, such as you need to run wires to your tool room, or install solar energy equipment. Because these wires and tubes need to be exposed to sunlight for a long time, and they are attacked by high temperatures, water, dust, and even temperature sharply drops at night, the performance of the wire and tube at low temperatures needs to be considered.
If you use an ordinary PVC electrical conduit, what will happen? The most common problems are yellowing, brittleness, and cracking of your wires tubes. This kind of line tube is usually white in color. Because they are NOT designed to be used as electrical conduits (usually for plumbing water pipes), they cannot protect your electrical wires under long-term exposure conditions.
From the perspective of product manufacturing, general electrical PVC wiring pipes, especially those with UV protection wiring pipes are generally in gray. And It has a different additive formula in the production process between ordinary PVC wiring pipes, so it is far superior to white PVC pipes in terms of UV protection.
In addition, there are differences in low temperature and waterproof performance. Specific data need to refer to the standards of each country. For example, you can check our Schedule 40 PVC pipe product page to get details for this.
No, you need to consider the US National Electrical Code requirement for all components of electrical installations need to be approved national test agency. So we do NOT recommend white PVC for electrical wiring pipes.
In addition, electrician wiring pipes are slightly different in formula and manufacturing process compared to water pipes. The thickness and diameter of electrical line pipes have strict industry standards, not just to unify one size. Electrician conduit can prevent overload and high current in an instant, also it has a higher fire rating. We even have low-smoke halogen-free ( LSZH Electrical PVC Conduit ) PVC pipe, the flame retardant grade is highest ( V0 grade fire rating, it will self-extinguished in 5 seconds after the cut off the fire sourcing ), and it can emit less smoke when burned compared with white PVC conduit avoid to release of toxic halogens to increase the survival rate of rescue operations. These are the test standards and content that ordinary drain pipes missing.
So for your safety, we do not recommend you to do this.
Firstly, we do not think the color is the first consideration in your purchase decision.
But in fact, color does represent the difference in product application to some extent. For example, the anti-UV conduit pipe we mentioned earlier.
So we take Schedule 40 and Schedule 80 PVC pipes as an example.
These two pipes are just a standard. The most critical parameter is thickness. Schedule 80 is much thicker than Schedule 40 PVC pipe, and Sch 80 pipe is gray or dark gray in general. Sch 40 PVC pipe is white compared with the same period, and the thickness is thinner than Sch 80 PVC pipe.
So it is obvious from the comparison of the two parameters. Schedule 40 PVC pipe can be considered for home improvement or indoor decoration, while Schedule 80 PVC pipe is much stronger, so it can be considered for outdoor projects.
From the manufacturer’s view, PVC was originally a very stable raw material, and its color was white. The gray color is caused by the special formula additives dying in the later period. These additives greatly enhance the high-temperature resistance of PVC and make the current conductivity weaker, so it can withstand Shocking thousands of volts of instantaneous voltages.
Of course, the color is not the standard. The most important thing is to see the body printing of the tube to identify the purpose before buying. It is the most reliable.
Of course. The National Electrical Code requires all of the conduit connections must to be tight. As to the PVC conduit pipes, it means glue.
Using glue to glue electrical pipes is the same principle as we glue other things, and the DIY is not difficult.
As a manufacturer, we do our best to control the tolerance range of each wire pipe size and strive to ensure compliance with relevant international standards, such as UL651. But the actual situation is that in the case of invisible to the naked eye, even on the same production line, there will be certain tolerances for PVC line pipes produced at different periods, which is inevitable.
Then, there will be extremely tiny gaps between the pipe to pipe or fittings, and between the pipe and the fittings. The role of glue is to fill these gaps, so the water, cement, and dust can hardly enter the inside of the pipe through such gaps,
Moreover, the glue itself has the effect of adhesion, which can increase the strength of the joint, and it is not easy to fall off. Of course, the fundamental purpose of doing this is to protect the wires inside the line pipe from being easily affected by these impurities.
Pro Tips,
(1) Professional PVC glue must be used instead of ordinary glue. Because PVC glue has high adhesion strength and resistance to high & low temperatures, water, etc, all of these features not available of ordinary glue;
(2) Glue can be evenly applied to the connecting part of the male connector of the pipe, and the female connector can be applied a little bit. After coating, insert the male head into the female head, insert it in a slightly rotating manner and reach the right position to ensure that the glue is in full contact;
(3) It is best to use a small brush to apply the glue. It does not need to be applied too thickly, just a thin layer, otherwise, the glue will overflow.
(4) PVC glue usually takes 1-2 hours to fix, reaches the ready to use after 24 hours, and reaches the best adhesion strength after 48 hours.
First of all, in addition to the PVC electrical conduit and the electrical box, you also need to prepare an adaptor with locknut and PVC glue.
As for the installation method, so easy. The first step is to glue the pipe to the adaptor, remember to use glue, and your can reference our previous Pro Tips content about glue conduit pipes. The second step is to insert the threaded part of the adaptor into the electrical box, and then lock it with the locknut. Of course, you can also add a little glue to the locknut part, which is more firm and reliable, and it is also the simplest way of waterproofing.
Of course, if your electric box is integrated with fittings, then you can directly apply glue to the wire tube and insert it into the electrical box.
In addition, if the flexible pipe needs to be connected to the electrical box, you just follow the above steps, the only difference is you need to pick up another adaptor used for flexible pipe for the locking part is needed to fix the flex pipe end.
I believe you will know how to connect through the pictures.
This is an incorrect question because PVC can be recycled, but the recycling cost is too high.
PVC, like other plastics, is often accompanied by many impurities after being eliminated and used, and it needs to be sorted before it can be recycled. The early physical recycling and burning recycling methods have been eliminated. The quality of the plastic materials recycled by the former is not good because it is difficult to sort. The latter is harmful to the environment because many harmful gases are released during the burn of PVC to pollute the environment. Therefore, at present, only chemical recycles methods can be used to do this. Chemical recycles can get higher quality recovery, but the cost is high.
BTW, the recent crazy increase in crude oil prices has greatly affected the prices of plastic raw materials, so recycling is a trend in the future.
Secondly, the quality of recycled PVC is not as good as that of brand new materials. So it can only be used for some low requirement applications, such as shoe soles, agricultural drainage pipes, and so on.
From the electrical PVC pipe industry, recycling has another meaning. What we call Recycling Materials usually means that after the first injection or extrusion, there may be some quality issues that may cause the product to be scrapped. To not waste raw materials, the process of mixing these raw materials back into use is called recycling. It has a different meaning from the recycled raw materials above and can be said to be the raw materials for the second processing.
Of course, what is described above is an ideal situation. If the raw materials are only circulated in the factory, it should be better. Some factories buy this kind of recycled materials and mix them with a certain proportion of brand-new materials, so you can’t distinguish it in appearance, but its physical properties are much different from those made of 100% brand-new materials. This is why Ctube insists on using brand new materials during the 10+ Year production process. It can be said that we have never been complained by customers in this regard.
No, you can’t. NEC general sets a minimum separation of 2 inches between communications and electric power cables. In addition, for security purposes, this is not a best practice.
There are 2 key points here. The first one is that the ethernet cable is a signal wire, and the current is weak, and there is a possibility that the signal will be interfered with by a strong current one. Then the performance of your network signal is unstable, there will be irregular interruptions or high data transmission delays, which will affect your experience.
The second one is the wire generally has a relatively large current and the temperature will be higher. If an accident occurs, the large current may directly cause an instant short circuit of the wire, and at the same time, it will be transmitted to the ethernet cable and affect your terminal equipment (such as routers), resulting in damage to your terminal equipment.
So we suggest that you need to run these two wires separately. Common power wires are installed through one pipe, while ethernet cables are installed through another pipe. And through accessories such as bend, they can be installed from two different positions. which can increase signal stability and safety.
This is a broad question because we don’t know exactly the purpose of the reader. So we only talk about our area. Yes, that’s an electrical conduit pipe.
Firstly is the material, we think PVC should be a smart choice. As we mentioned before, PVC material, especially the current high-quality raw materials can hold the instantaneous voltage shock of several thousand volts, and it has many advantages such as anti-rust, waterproof, and UV resistance.
Secondly is checking the parameters. Generally, household wires will have cable diameter data, and run the 2-3 ways is in one electrical conduit is no big problem. So you need to pay attention to inner diameter and thickness when buying the wire pipe. Generally speaking, the inner diameter of the purchased wire pipe must be larger than the sum of your wire diameters, and extra space can be reserved for future upgrades or replacements.
Finally, choosing a reliable brand is very important. Brands such as Charlotte Pipe or Carlos are more reliable in the US because they have many years of experience and relevant certification. We suggest that you can buy directly from their official channels or distributors. There are also customers asking whether we can buy on Amazon? We think that Amazon may be more professional in the field of e-commerce, but they do not understand and doing great about quality control of products such as electrical pipe, so we do not recommend buying on an e-commerce website such as Amazon.
Absolutely!
As we mentioned before, the wiring runs outdoor, it will not only be exposed to sunlight direct in a long-time, but also will be affected by factors such as low temperature at the night, water, dust, even wild animals.
If the wire is damaged, it will not only waste your time to repair it. Moreover, damaged wires may cause a safety accident, which is dangerous.
Some of our customers also told us that the wires they laid out would not be exposed to sunlight, but we mentioned that there are other reasons. We need to know that the insulation layer of the wire itself is thin, so it has the limited protective ability. So we still recommend installing electrical conduits.
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Whether it is directly buried underground or run wires on the ground, you should place them in the wire tube to provide better protection for safety.
This question is not difficult to answer, just use the conduit fittings, such as bend or elbow.
We have seen that many construction workers use springs or hot air guns to bend pipes in the actual construction process, which is not the best practice. Let’s take an example. You can take a bottle of Coke and pinch the middle of the plastic bottle with your hands. You will find that there is less Coke in the middle because they are under pressure and flow to both sides. The same is true for spring bending. The density of PVC electrical pipe is a fixed value. Even if you bend the pipe with spring, it looks no problem to the naked eye, but its strength has changed, just like the Coke bottle, the Coke becomes less already, so the strength of the wire pipe itself is reduced.
Therefore, this problem can be easily solved by using a bend or elbow with an angle of 45° or 90°, and you do not need to worry about the strength of the conduit pipe.
You can also refer to the Fittings Post we wrote earlier, or check our Fittings product page, you will have a clearer understanding of how they work.
That’s it, thanks for your reading. You can contact us and leave your message to let us know what your problem is, we will reply to you shortly.
Choosing the right pipe and fittings is crucial for any industrial, commercial, or residential project. Choose high-quality components if you need parts for plumbing, HVAC systems, or hydraulic uses. They provide durability, efficiency, and safety. This checklist will help you select the best pipes, pipe fittings, and hydraulic fittings for your needs.
Pipes come in various materials and sizes. Each type serves a specific purpose, so selecting the correct one is essential for long-term performance. Here are the most common types of pipes:
Strong, durable, and ideal for high-pressure applications. Plumbers, gas line installers, and builders use them in plumbing. They also use them in gas lines.
These professionals use them in structural applications. Their robust nature makes them ideal for these uses. However, they are susceptible to corrosion and can be more expensive than other piping materials.
Corrosion-resistant and widely used in plumbing and HVAC systems. People recognize them for their excellent heat conductivity and durability. That makes them a reliable choice for transporting hot and cold water. However, copper can be more expensive than other piping options and may not be suitable for all applications.
Lightweight, affordable, and commonly used for drainage and water supply. They are easy to install and resistant to many chemicals. But it may not be suitable for high-temperature or high-pressure applications.
Flexible, easy to install, and excellent for residential water systems. Their flexibility reduces the need for numerous fittings, simplifying installation and mini.
Resistant to rust and ideal for food processing and medical applications. Their hygienic properties and ability to withstand high temperatures and pressures make them a premium choice.
Coated to prevent corrosion, used for outdoor and industrial applications. The zinc coating provides a barrier against rust, extending the pipe's lifespan in harsh environments.
Pipe fittings connect, extend, or redirect piping systems. Selecting high-quality fittings ensures leak-free performance and proper flow. Consider these key fittings:
Change the flow direction at different angles (e.g., 45°, 90°). They are essential for navigating pipes around obstacles and creating complex plumbing layouts.
Distribute flow in multiple directions. They create branches in piping systems for efficient fluid distribution. A single pipeline feeds multiple outlets or appliances smoothly.
These branches ensure even pressure and steady flow. They help optimize performance in residential, commercial, and industrial setups. Proper installation prevents leaks and enhances durability.
Join two pipes of the same or different sizes. They provide a secure and leak-free connection between pipe sections. Couplings are available in various types, each suited to different applications and pipe materials.
Transition between different pipe diameters. They allow for a smooth flow rate or pressure change within a piping system. Reducers are crucial for adapting to different component sizes and optimizing fluid dynamics.
Allow easy disconnection and maintenance. They provide a convenient way to separate pipes without cutting or disassembling the entire system. This is particularly useful for repairs, cleaning, or future modifications.
Seal pipe ends to prevent leaks or contamination. People use them to terminate pipe runs or to temporarily close off sections for maintenance or future expansion. Caps typically fit over the end of a pipe, while plugs fit inside the pipe opening.
A pipe nipple is a short pipe with male threads on both ends for joining pipes and fittings. Ensure you choose pipe nipples made from durable materials like:
Corrosion-resistant and ideal for water and gas applications. A strong and durable alloy of copper and zinc, often chosen for its machinability and ease of installation, exists.
Highly durable and perfect for high-pressure systems. Its resistance to corrosion and heat makes it popular for demanding uses. Many industries rely on it. Food processing, medical, and chemical sectors use it often.
Gas and oil industries use black iron for transportation. This material is strong and durable. It rusts easily and needs protective coatings. Sealants help extend their lifespan in harsh conditions. Its strength makes it useful in structural applications. Check for threading accuracy, proper length, and material compatibility when selecting pipe nipples.
Hose fittings connect hoses to pipes, equipment, or other hoses. The right selection ensures efficient fluid transmission. Consider the following factors:
Choose brass, stainless steel, or aluminum based on the application's pressure and temperature requirements. The material must be compatible with the conveyed fluid. This ensures long-term reliability. It also improves safety.
Ensure compatibility with NPT, BSP, or JIC threads. Using mismatched thread types can lead to leaks and damage to the fittings or connected equipment.
Select fittings that fit snugly without causing leaks. Proper sizing is essential for a secure and reliable connection, preventing costly and potentially hazardous fluid leaks.
Opt for fittings with protective coatings for longevity. This is particularly important in harsh environments or when dealing with corrosive fluids.
Tube fittings ensure leak-proof connections in industrial applications. They come in various styles, including:
Secure tubes without welding. They are easy to install and require no specialized tools. That makes them ideal for quick repairs or installations in tight spaces. However, they may not be suitable for high-pressure or high-temperature applications.
Allow quick and easy connections. They simplify installation and require no specialized tools, making them ideal for DIY projects and quick repairs. However, they may not be as robust as other fitting types and may not be suitable for all applications.
Flare Fittings
Offer a tight seal for high-pressure applications. People commonly use them in hydraulic and refrigeration systems because of their reliability and resistance to leaks. However, they require specialized tools and expertise for proper installation.
Hold hoses in place using a ribbed surface. People commonly use them for low-pressure applications like pneumatic lines and fluid transfer. However, they may not be suitable for high-pressure or high-temperature applications. They require hose clamps for a secure connection. Choose tube fittings based on the tube material, pressure rating, and connection method to avoid failures.
Hydraulic fittings connect hoses, pipes, and tubes in high-pressure hydraulic systems. The right fittings prevent leaks, reduce downtime, and enhance system efficiency. Consider these options:
Ensure a secure connection with a flared seating surface. People commonly use them in hydraulic systems because of their reliable leak-free seal, even under high pressure. However, proper installation requires precise flaring of the tubing.
Provide leak-free connections in hydraulic systems. Their design, incorporating an O-ring, creates a reliable seal, even under high pressure and vibration. This makes them a preferred choice in demanding hydraulic applications.
Used in European hydraulic systems for precise connections. People recognize them for their reliability and often prefer them in applications where leak prevention is critical. Their design ensures a tight seal, even under high pressure and vibration.
Offer excellent grip and sealing for high-pressure applications. The "bite" refers to the ferrule gripping the tube, creating a robust and leak-resistant connection. People commonly use them in hydraulic systems and other demanding applications.
Every pipe and fitting has a pressure and temperature rating. Exceeding these limits can cause failures and system breakdowns. Check the manufacturer's specifications to ensure the components meet your application’s requirements.
Using the wrong size pipe or fitting can lead to leaks, pressure drops, and inefficiencies. Measure the inner and outer diameters, wall thickness, and thread type to ensure compatibility.
Pipes and fittings must withstand environmental conditions. Choose materials with corrosion-resistant coatings or alloys like stainless steel or galvanized coatings to extend their lifespan.
Selecting a trusted supplier ensures you receive high-quality pipe and fittings that meet industry standards. Look for suppliers with:
ISO, ANSI, and ASTM compliance. These certifications ensure that the fittings meet specific quality and performance standards, providing confidence in their reliability and safety.
Positive feedback from previous buyers. Checking reviews can provide valuable insights into the real-world performance and reliability of the fittings. Consider comments regarding ease of installation, durability, and leak resistance.
A guarantee of durability and performance. A solid warranty provides peace of mind and protects your investment in case of defects or premature failure. Review the warranty terms carefully, paying attention to the duration of coverage and what it includes.
Availability of multiple types and sizes. A broad selection ensures you can find the perfect fittings to match your specific application requirements. This simplifies the purchasing process and reduces the need to source fittings from multiple suppliers.
Having the right pipe and fittings is essential for the success of any plumbing, industrial, or hydraulic system. By following this checklist, you can ensure durability, efficiency, and a secure connection.
When you need pipe nipples, hose fittings, tube fittings, or hydraulic fittings, choose high-quality materials. Make sure to get the right size and buy from trusted suppliers. This will help you get the best performance from your piping system.
For top-quality pipe and fittings, explore reputable suppliers and invest in components that guarantee reliability and longevity.
At eINDUSTRIFY, we provide high-performance pipes and fittings that meet industry standards. Whether you are working on a big industrial project or need strong parts for plumbing or HVAC systems, we can help.
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