FAQs

Find quick and reliable answers to common industry questions about products, installations, maintenance and troubleshooting.

  • What Type of Pipe to Use for In-Ground Sprinkler Systems

    When it comes to sprinkler systems, getting the right piping is key. However, it can be difficult to determine the best pipe to support your system. Polyethylene and PVC are two types of pipe that are frequently used in sprinkler and irrigation systems. It is important to understand the differences between the two so that you can get the best results from your sprinkler system. Below, you can find information to help you determine the best type of pipe for sprinkler systems.best type of pipe for sprinkler

    Polyethylene

    Polyethylene is the ideal choice for those environments that require flexible tube. Rocky soil or cold climates where the soil will likely freeze are where this type of tube works best. Due to their high pressure ratings, this type of tubing is becoming more commonly used in home sprinkler systems than ever before. It has the added benefit of never cracking due to frozen water as well.

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  • Industrial Filtration: Bag Housings vs. Cartridge Housings

    When it comes to industrial filtration, understanding the differences between bag housings and cartridge housings is extremely important. Both types are used in many different industries and impact the way that liquids and gases get filtered. To determine whether bag housings or cartridge housings will work best within a certain industry, it is important to understand how they work. While they are similar, they have specific ways in which they are unique. Below, you can find an explanation about the differences between bag housings and cartridge housings, as well as the qualities that are similar.differences between bag housings and cartridge housings

     

    Cartridge Housings

    Cartridge housings support industrial grade cartridge filters through the filtration process. There is a large range of contaminant and flow capabilities with cartridge housings. This allows them to be able to serve many purposes due to their versatility. A variety of industries use cartridge filters and that is due in large part to the housings. Though they are versatile, the food and beverage industry is the one that benefits the most from this type of housing. Cartridge housing systems help to attain precise filtration.

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  • What is a Cam Lock Fitting?

    Cam lock fittings, also known as cam and groove couplings, are extremely beneficial and reliable tools that you can use in a number of ways. But what is a cam lock fitting exactly and how can it be used? If you’re asking yourself that question then you have come to the right place! Read below to find out all about the versatile tool known as the camlock fitting.

    Camlock Fitting with Male End

    How to Use a Cam Lock Fitting

    First and foremost, camlock fittings are a type of hose coupling. This means that they are a way to connect or disconnect a hose or pipe in a speedy, efficient way without having to involve complex tools or equipment. These connections guarantee tight and secure bonds because of the way that the cams lock into place. Camlock fittings have both a male and female end, as well as arms that help to lock the ends together when they connect.The male and female ends are designed to align perfectly with each other.

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  • When to Use PVC Duct Pipe and Fittings

    PVC duct pipe gray

    Two of the reasons PVC and CPVC are so popular are their low cost and light weight. They are less expensive than any metal piping and install easily. They are also lightweight, which means they need less support than some of the heavier metal pipes. These materials also have fantastic chemical resistances, so what's not to love? PVC/CPVC duct piping has thinner walls, which makes it even lighter and ideal for low pressure gas transport. If you're wondering when to use PVC duct materials, keep reading!

    What is PVC Ducting?

    PVC and CPVC pipe and fittings are split into several sizing categories, the most popular being schedule 40 and schedule 80. Sch. 40 PVC is standard thickness, while sch. 80 is significantly thicker. This makes schedule 80 PVC better for higher pressure applications. Duct PVC is even thinner than schedule 40, with walls not designed to with stand high pressures or heavy liquids. The most common applications for PVC duct involve venting gas and exhaust.

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  • Valves - Choosing Between Ductile and Cast Iron

    comparing valves

    Customers from all kinds of industries need valves of all varieties for their high-demand processes. Valves are available in a huge number of materials for any application imaginable. A few of these materials are PVC, carbon steel, stainless steel, cast iron, and ductile iron. In this post we will focus on two of those materials: ductile iron and cast iron. The argument of "ductile vs. cast iron valves" has been going on for decades, as not everyone knows the differences.

    Luckily, comparing valves made of ductile iron and cast iron is simple, as these materials have just a few major differences. We will outline properties of both materials and then go through the pros and cons of each. By the end of this blog post, you will be an iron expert!

    Cast Iron Valves Specifications

    Cast iron (also known as gray iron) is a type of metal that has been in use for hundreds of years. It is an alloy made from 96%-98% iron, 2%-4% carbon, and small amounts of silicone. It has impressive temperature tolerance, with some cast iron capable of handling temperatures over 2100F (1150C). When it comes to pressure, cast iron's strength depends on its pressure class. The two most common are class 125 and class 250. At less extreme temperatures, class 125 cast iron flange is rated for pressures between 150 and 200 psi. Class 250 cast iron is a bit tougher, with pressure ratings from 300 to 500 psi. These pressures can vary by end type.

    Cast iron is strong and will usually go undamaged even after going through intense vibrations. The main drawback of cast iron valves is that they are not very ductile at all. Virtually any bending will cause cast iron to crack and become useless. One great quality of cast iron is that it is not very expensive. As far as metals go, cast iron is usually the most economical option, which makes it a solid alternative for people on a budget.

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  • Can PVC and CPVC be Glued Together?

    schedule 80 cpvc pipe light grey Sch. 80 CPVC

    PVC and CPVC have different applications, so they are not typically used in the same types of applications. CPVC goes through an extra chlorination process, which lets it withstand high temperatures much more effectively than regular PVC. While PVC starts deteriorating at 140F, CPVC stays strong up to 200F, which makes it perfect for water supply lines. PVC, on the other hand, is most often found in drain lines since it’s cheap and doesn’t rust. But if it was necessary, would gluing PVC to CPVC be possible?

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  • Buy the Right PVC Pipe: Schedule 40 and Schedule 80 PVC

    Schedule 80 PVC vs Schedule 40 PVC
    Schedule 40 vs Schedule 80 PVC

    If you've been shopping around for PVC you may have heard the term “schedule”. Despite its deceiving title, schedule doesn't have anything to do with time. A PVC pipe’s schedule has to do with the thickness of its walls. Maybe you've seen that schedule 80 pipe is slightly more costly than schedule 40.

    Though the outside diameter of a schedule 80 pipe and a schedule 40 pipe are the same, 80 pipe has thicker walls. This standard of measuring pipe came from a need to have a universal system for referring to PVC. Since different wall thicknesses are beneficial in different situations, the ASTM (American Society for Testing and Materials) came up with the schedule 40 and 80 system for classifying the two common types.

    The main differences between Schedule 40 (Sch 40) and Schedule 80 (Sch 80) are:

    • • Water Pressure Rating
    • • Sizing & Diameter (Wall Thickness)
    • • Color
    • • Application & Use

    Purchase the Right Piping

    CIS offers schedule 40 and schedule 80 PVC piping as well as fittings and other accessories at extremely competitive prices.

    Get A Competitive Quote on Sch 40 / Sch 80 Pipe or Fittings Today!

    Dimensions and Pressure Ratings

    Below are some downloadable reference sheets that give you more information about the different dimensions and pressure ratings for Schedule 40 PVC and Schedule 80 PVC:

    pdfSchedule 40 PVC Pipe Dimensions (White)

    pdfSchedule 80 PVC Pipe Dimensions (White)

    Water Pressure for Sch 40 vs Sch 80

    Both schedule 40 and 80 PVC are used widely around the world. Each one has its benefits in different applications. Schedule 40 pipe has thinner walls, so it is best for applications involving relatively low water pressure.

    Schedule 80 pipe has thicker walls and is able to withstand higher PSI (pounds per square inch). This makes it ideal for industrial and chemical applications. To give you an idea of the size difference, 1” schedule 40 PVC pipe has a .133” minimum wall and 450 PSI, while schedule 80 has a .179” minimum wall and 630 PSI.

    Sizing & Diameter

    As mentioned earlier, both schedule 80 and schedule 40 PVC pipe have the exact same outside diameter. This is possible because schedule 80’s extra wall thickness is on the inside of the pipe. This means schedule 80 pipe will have a slightly more restricted flow – even though it may be the same pipe diameter as an equivalent schedule 40 pipe. This means schedule 40 and 80 pipe do fit together and can be used together if necessary.

    The only thing to be careful of is that the lower pressure handling schedule 40 parts meet the pressure requirements of your application. Your pipe line is only as strong as your weakest part or joint, so even one schedule 40 part used in a higher pressure schedule 80 line can cause severe damage.

    Schedule 40 and Schedule 80 Color

    Generally, schedule 40 pipe is white in color, while schedule 80 is often gray to distinguish it from 40. PVC is available in many colors though, so be sure to check labels when purchasing.

    Which Schedule PVC do I Need?

    So what schedule PVC do you need? If you plan to take on a home repair or irrigation project, schedule 40 PVC is probably the way to go. Even schedule 40 PVC is capable of handling impressive pressure, and it is likely more than adequate for any home application.

    You’ll also save yourself a little money sticking with schedule 40, especially if you plan on using large diameter parts. If your job will be industrial or chemical in nature, you probably want to use schedule 80. These are applications that will likely cause higher pressure and stress on the material, so thicker walls are imperative.

    CIS specializes in the following types of Schedule 40 & Schedule 80 products: sch 40 piping, sch 80 piping, sch 40 fittings, sch 80 fittings and more. You can also view our entire line of pvc fittings and pvc piping.

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  • Can I Use PVC for My Dryer Vent?

     

    Dryer Vent MaterialWhen its comes to your home and the products you use in it, you should always do research to make sure you are aware of safety precautions, especially when dealing with electrical appliances that produce any sort of heat like a clothing dryer.

    Can you use PVC pipe for your dryer's vent? This is one of the most common questions asked about PVC pipe, and yet there aren't many good answers out there on the internet today. Can you use PVC for your dryer vent? Here's the rundown on using PVC for a dryer vent:

     

    Short Answer: You can, but you shouldn't.

     

    Why Not Use PVC for Your Dryer Vent?

    PVC pipe is fantastic for many different applications, and it is even sometimes used for duct and venting applications, but there are a few reasons why PVC pipe is not a great choice for dryer vents. Continue reading

  • What Are the Effects of Sunlight on PVC?

    sunlight-pvc-pipe-effectsYou wouldn't believe some of the crazy things people are making out of PVC these days. We are always amused at new creative uses for it, and sometimes that leads to unexpected questions about using PVC pipe and fittings.

    Whether you find yourself using PVC for recreation or for plumbing and industrial handling, you may need to know how using PVC outdoors will effect the material. Here's your answer!

    PVC Pipe Strength

    PVC is known and used around the world for its amazing rigidity and strength. Many times users are fearful of using PVC outdoors for fear of losing some of those strength properties. Is this a legitimate fear, though? The quick and easy answer is, no, not really.

    PVC does surprisingly well when exposed to ultra violet rays (sunlight). Research shows little to no effect on PVC's tensile strength or elasticity after prolonged sun exposure. The only degradation that seems to occur is impact strength. That means the pipe may become slightly more brittle after prolonged sun exposure.

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