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PVC Parts, CPVC, Duct, Valves & More Industrial Supply Info

  • Difference between Gate Valves and Ball Valves

    One of the most important components of a functional plumbing system is the valves it contains. Valves allow for the start and stop of the flow of liquid, and they need to work well to prevent leaks and unwanted flow. While there are a number of valve types on the market, two of the most common are the ball valve and the gate valve. Here's what you need to know about these two valve types.

    What Is a Gate Valve?

    A gate valve gets its name from the internal mechanism that enables the flow of water. This mechanism looks like a tiny gate that moves up and down on a stem, which is connected to the handle. The handle is a screw handle that moves the gate up and down, opening and closing the valve as needed. They are best used in on/off applications where the valve is used infrequently. They are sometimes found in home plumbing systems, though ball valves are becoming more popular in this area. They are also commonly found in the oil and gas industry, pharmaceuticals, manufacturing, automotive, and marine applications. They can be used in high pressure and high temperature environments, so are often found in manufacturing.

    Gate valves have one major advantage over ball valves. Because the opening and closing mechanism is slow, they can't cause a water hammer. For this reason, some municipalities require the valve nearest to the water meter to be a gate valve.

    However, gate valves have disadvantages as well. The screw mechanism that opens and closes the valve can easily fall victim to corrosion. Once corroded, the valve won't work properly. Gate valves should be used in fully open or fully closed positions, but it is possible on some models for the valve to be stuck partially open or partially closed. This causes vibration of the gate, which can damage the valve. Gate valves can be hard to operate by those with disabilities, and they don't provide a visual clue to the "on" or "off" position.

    Types of Gate Valves

    While the basic function of a gate valve is the same regardless of the type, you will find a number of valve types on the market. Your application will determine which type you need.

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  • Common Applications for Electrical Box Enclosures

    There are numerous areas where sensitive electronic equipment is needed. When such equipment is installed, it is usually necessary to ensure that the wires are protected. Exposure to elements such as dust, rain and sun will not only damage the equipment and wires but can also result in electrical faults. To avoid the adverse effects of exposed electronic equipment, you should make use of electrical box enclosures, which are cabinets in which displays, knobs and switches are mounted. The box enclosures are usually made of plastic or metals such as aluminum, carbon steel and stainless steel.

    Irrigation Wiring

    Irrigation requires the use of electrical energy to pump water from the source and sprinkle it on the grounds. Whether you are looking to water your lawn, garden or farm, you will need to have a reliable source of energy. To achieve this, it will be necessary to have the required wiring in place. However, the joints at which the wires connect will have to be protected from water. The switches to be used in turning the system on and off will also have to be protected from the elements. Electrical enclosures will help to protect your investment and keep you safe from electrocution.

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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.

    Have other questions? Leave a comment....

  • The Difference Between PVC and CPVC pipe?

    PVC vs CPVC

    You’re probably familiar with PVC pipe. It's the white plastic pipe commonly used for plumbing and drainage. PVC stands for polyvinyl chloride, and it’s become a common replacement for metal piping. PVC’s strength, durability, easy installation, and low cost have made it one of the most widely used plastics in the world. PVC is a thermoplastic material that is molded into different shapes to create pipes, fittings, valves and other liquid handling supplies.

    Get a Quote on CPVC / PVC Piping at CIS

    So What is CPVC?

    You can think of CPVC as PVC’s cousin. They are similar in many ways, but they shouldn't be used interchangeably. Both are made of the same basic elements with one distinguishing factor. CPVC is altered by a free radical chlorination reaction that effectively increases the chlorine content of the material. CPVC is also a thermoplastic that is molded into many of the same products as PVC. This difference in makeup allows CPVC to withstand a wider range of temperatures. This is why many building codes require the use of CPVC as opposed to PVC for use in hot water applications. The ASTM standard allows PVC to be used in applications not exceeding 140 degrees F. Temperatures over this can cause softening of the material and weakening of joints.  CPVC on the other hand can handle temperatures up to 200 degrees F.  
     Buy PVC Pipe and Fittings Buy Sch 80 CPVC Pipe and Fittings

    Other Differences Between PVC & CPVC:

    There are a few other differences between the two materials. Most North American PVC pipe uses a Nominal Pipe Size (NPS), while CPVC is available in either NPS standard sizing -OR- CTS (Copper Tube Size) sizing. The copper tube sizing system is an entirely different sizing system from Nominal Pipe Size, and as the name implies it is the same system used for copper tube pipe. Before purchasing CPVC be aware of what your use will be, and what sizing system you require. Color can be a clue, too. Often CTS CPVC is a light yellowish color, while schedule 80 CPVC (NPS) is a light gray color. PVC pipe and fittings usually comes in white or dark gray. Always check the manufacturer printing on the pipe to be sure. Because of the differences in chemical makeup, sometimes PVC or CPVC also require different primers and solvents for connecting pipe and fitting joints. The creation of a strong joint depends on the cement’s ability to chemically soften the plastic. For this reason you should always use a cement specific to the material you are using.

    Applications of PVC & CPVC:

    As mentioned before, CPVC is more suitable for hot water applications up to 200F. PVC is still often used for unheated water as well as for vent and drainage systems; however, CPVC has become widely used for both hot and cold potable water. The more resistant properties of CPVC make it useful for commercial and industrial applications as well. Because of its wider range of applications, CPVC is usually pricier than PVC. That being said, it is still a very cost-effective and versatile material. We recommend the use of PVC for recreational use/building, cold water systems, vent systems, and drainage systems. CPVC is recommended for applications where the maximum temperature will exceed 140 degrees Fahrenheit, but stay under CPVC's max rating of 200 degrees Fahrenheit. Another deciding factor in which material to use is the chemical makeup of media being handled in your application. Though PVC and CPVC both are resistant to many of the same chemicals, some are best handled by one or the other. Consult a chemical compatibility chart to be sure the piping materials you choose will work with your unique application.

    Can PVC & CPVC be used together?

    All NPS size pipe and fittings will fit together, but it is not recommended that you mix and match materials. Mixing materials can compromise the pipe line's temperature and pressure ratings. For that reason we always recommend any pressurized pipe system be constructed using matching piping material and schedules.
  • PVC Pipe and Diesel Fuel

    red truck diesel fuel towing highway transportation

    "Will diesel fuel harm PVC pipe?"

    "Will PVC pipe hold up to diesel fuel?"

    "Can PVC pipe be used for diesel fuel?"

    "Is PVC pipe compatible with diesel fuel?"

    These questions are difficult to answer because they can mean different things. Often people ask these questions because they are wondering whether or not they can use PVC pipe to transport or store diesel fuel. Others ask because they are transporting PVC pipe and want to know if diesel fuel exhaust from a truck will damage the pipe or make it less usable. Regardless of the motivation, these questions are all perfectly reasonable. This blog post will provide some answers to this tricky topic.

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  • Customer Service for Contractors: What Customers Want from Contractors

    customer service contractors helpful tips for plumbers

    The customer is a fickle being. As a contractor, it is very easy to scare away customers with less-than-perfect customer service. The best customer service contractors can provide comes in several forms. Customers want their contractor to be a source of information, someone who will lay out all the options. They also want contractors to be professional in appearance and conduct. Finally, customers want the experience to be quick and painless. If you are able to meet all these expectation, you may have a repeat customer on your hands.

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  • 7 Common Building and Plumbing Code Violations

    Both building code violations and plumbing code violations can cause major problems in a home or any building. Most of the rules are in place to ensure the safety of a building's occupants, so disregarding them is putting people's safety in jeopardy. This list compiles some of the most common plumbing code violations as well as some regularly-seen building code violations.

    1. Improper Bathroom Venting

    Most bathrooms have exhaust fans. These fans send steam or odors out of the bathroom and into a vent. These vents are meant to lead directly outside, but they often end in an attic instead. This is dangerous, as moisture can collect in an attic and cause rot and other issues. Also, since the warm air and moisture is getting trapped in the closed space of the attic, they may get stuck in the bathroom, causing mold and mildew to form. To avoid those problems, all vents should have their outlets outside the building, either through the roof or through the side of the building.

    2. Misplaced Smoke Alarms

    smoke alarm placed proper distance from ceiling

    Building codes require smoke alarms to be placed on each level of the house and outside each  bedroom. Codes for new homes are even stricter, requiring a smoke alarm in each bedroom, hard-wired with a battery backup, and interconnected. This means that if one activates, they will all activate. The most commonly-seen mistake with smoke alarms is that they are placed too low. Because smoke travels upwards, it can sometimes miss smoke alarms that are too low on a wall.

    Smoke alarms can be either ceiling-mounted or wall-mounted. Ceiling-mounted alarms should be installed at least 4 inches away from walls. Wall-mounted alarms should be installed between no less than 4 but no more than 12 inches down from the ceiling. These guidelines are provided in the directions included in their packaging. Smoke alarms are important life-saving devices and must be installed properly.

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  • Applications and Uses for PVC Unions

    PVC pipes are used in a number of settings for everything from general plumbing and piping to landscaping work and swimming pool related applications.

    PVC stands for polyvinyl chloride which is a type of thermoplastic polymer that offers a number of important advantages over other types of piping materials.

    PVC piping is lightweight, easy to install, highly durable and does not conduct electricity. Other pipe materials, like copper and stainless steel, are much heavier and more difficult to work with, and because they conduct electricity metal piping may not be advisable in many outdoor applications.

    When you weigh all of these factors, it is easy to see why PVC piping is the material of choice for many construction companies.

    What are PVC Unions and Why Use them over Similar Types of Pipe Fittings?

    80 union slip epdmPVC unions and PVC pipe union connectors are pipe fittings designed to connect two pipes together without the use of a sealant or traditional glued coupling.

    The advantage of using PVC pipe unions is that the pipes that are connected using PVC pipe unions can be taken apart and put back together again without the use of specialized tools.

    This means that wherever you use a PVC union to connect pipes together these pipes can be disconnected and worked on with relative ease. PVC pipes and PVC pipe unions are preferred by construction companies because they are:

    • • Easy to use, increasing your company’s productivity
    • • Relatively inexpensive, making your company more profitable
    • • Light weight and easy to carry around on the work site
    • • Non-conductive and safer than metallic pipes and pipe fittings, especially around power lines
    • • Not subject to rust or corrosion like various types of metal pipe fittings and connectors

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  • 5 Interesting Trends and Statistics for "Women in Construction Week"

    Women in Construction Week is a yearly event started by the National Association of Women in Construction (NAWIC) to highlight women as a visible and necessary component of the building and construction industry. This year it falls on March 6th-12th and will raise awareness of all the diverse opportunities for women in construction.

    To celebrate this week, we at CIS have compiled this list of interesting and eye-opening facts about women in the construction industry.

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  • 7 Important Facts About Green Building Ratings

    1. The popularity of green buildings continues to increase.

    leed-green-ratings-factsSoon, all buildings may be required to meet, at least, the prerequisites for LEED certification -LEED stands for Leadership in Energy and Environmental Design and is given by the U.S. Green Buildings Council -. Homeowners that apply for LEED certification have increased rapidly in residential and commercial/ industrial buildings. Today, more than 50,000 residential units and more than 57,000 commercial or industrial buildings hold this certification and the numbers continue to increase every day. The number of green buildings has increased by more than 35 percent since 2005.

    2. Green building rating system includes standards for indoor environment and maintenance.

    Buildings are also rated on how environmentally-friendly their interior is. Usage of water- and energy-saving systems, such as compact fluorescent light bulbs, effective air filtration systems,  and moisture control, can be built-in and need to be maintained properly by contractors and building managers.

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