PVC Thread Pipe for Water

Properties of PVC Thread Pipe for Water

  1. Healthy, bacteriological neutral, conforming to drinking water standards
  2. Resistant to high temperatures, good impact strength
  3. Convenient and reliable installation, low construction expenses
  4. Excellent heat-insulation property from minimum thermal conductivity
  5. Lightweight, convenient to transport and handle, good for labor-saving
  6. Smooth inner walls reduce pressure loss and increase flow speed
  7. Sound insulation (reduced by 40% compared to galvanized steel pipes
  8. Light colors and excellent design ensure suitability for both exposed and hidden installation
  9. Recyclable, environment-friendly, accords with gbm standards
  10. Extremely long usage life for at least 50 years

(This article comes from made-in-china.com editor released)

What are the advantages of threaded fittings?

Thread pipe joints are a kind of pipe fittings that we often see and use in our lives. They are also very common in the industry. From the name will be able to see, in fact, a thread pipe connector is a pipe connection, it is the difference between the word screw. A complete thread pipe joint usually has many different small parts, such as threaded elbow, threaded union, thread pipe, threaded plug, threaded tee, threaded cap, threaded reducer, core and thread Outer wire and so on.

The appearance of thread pipe joints, so that China Unicom pipeline becomes easier, and in the demolition of repair business also greatly reduced the difficulty of the cost of the pipeline connection to make an effective thrift. Thread pipe joints for different uses are also divided into different materials, such as our life in the commonly used threaded fittings are generally made of PVC, PPR, PC, PE and other materials. In the industry, due to the professionalism of the increase and the strict requirements of the pressure, are usually made of metal pipe fittings, such as stainless steel, brass, carbon steel and alloy steel and so on.

The wide range of threaded couplings plays an important role in the connection of the pipes and has advantages in all respects as compared to other joints. More important than the most important point is the use of threaded fittings is very convenient, and there is no operational difficulty. When connecting pipes do not need to use electricity, gas, fire and other auxiliary. There is no special construction requirements. This greatly improves the efficiency of the work. And the use of thread pipe joints will not occur, such as oil leakage, safety performance is also high. In addition, the thread pipe fittings size specifications, in the case of small space can also ensure smooth operation. As the use of threaded fittings simple, general workers can successfully complete the work will not be affected by the additional impact to ensure the stability of the performance.

Do not look threaded connector seems to be very small, its strength is very high, even higher than the strength of the steel base metal. The connection speed of thread pipe joints is relatively fast, and can be directly prefabricated in the factory to complete the production of the sleeve, effectively avoiding the sleeve and the steel does not match the situation. In the case of tight schedule, but also timely and efficient, quality and quantity to complete the job.

Screw pipe fittings are widely used because of its multi-type, multi-standard features, in different occasions, the screw connector can fully play a role. And processing steps easy to learn, do not need complex machine technology to assist. Not only can reduce labor costs, but also reduce the cost of machinery. For industrial operations is very useful in terms of materials. In life, the screw connector because of its simple operation and high availability, and by the people of all ages.

How to Thread Pipe

When working on an older home, it may be necessary to thread pipe when updates or repairs are needed. Pipe threader machines have evolved over the years and portable units are now relatively inexpensive and can be used by homeowners who choose to do their own plumbing rather than hiring a professional. Here’s how to thread pipe.

Most new pipe threader models have an on-board cutter, reamer, oiler, foot switch, stand and 115V operation.


1. Purchase or rent a manual pipe threader machine from an equipment retailer.

  • A die head will be attached to cut the thread.
  • Machines now have the ability to thread pipes made of different material, including various types of plastic or resin.
  • A heavy duty pipe threader can also cut your pipe into workable sections.
  • The pipe threading machine will be used to thread the end section of your pipe.

2. Inspect the pipe threader before beginning and replace dies or any parts that show signs of wear.

  • Inspection for signs of wear will not be necessary if you purchase a new threader.
  • Worn or damaged dies can result in poor thread quality.

3. Mount your pipe firmly in the pipe vise by placing it in the vise and then tightening until it is held tightly.

4. Cut the end of the pipe cleanly and squarely by using a pipe cutter.

  • If you have an industrial pipe threader with cutting capability, use the machine to cut your pipe to length.
  • Pipe cutters come with and without guides, which provide square alignment. It’s better to use a guide, rather than estimating your cut.
  • The pipe cutter will have a thin cutter wheel, which will slice through the pipe as you guide it in the space.
  • Be sure to wear goggles and protective gear. Steel may produce sparks.

5. Ream the cut end of the pipe to remove any burrs from the cut using a reamer, which is a cylinder-shaped rotary cutting tool that you run smoothly across the freshly cut edges of the pipe to remove rough edges.

6. Select your die head according to the size and type of pipe you are threading and the thread form you require.

  • Die heads come in different shapes and sizes that include different threads for pipes that have different diameters.

7. Place the die head over the pipe on the threader.

8. Press steadily on the front of the die head, while simultaneously pushing the handle down to start the threader.

  • Before placing too much pressure on the handle, check to be sure the ratchet pawl is engaged.

9. Use your weight as leverage to apply pressure on the handle, while holding it firmly.

  • Be sure to maintain proper footing and balance for maximum control.
  • Never use a tool or mechanism to hold the handle in place in order to free your hands.
  • This can be dangerous and could result in injury.

10. Apply threading oil generously while threading.

  • Using an oil too thin as a substitute for threading oil can result in sub-standard threading.

11. Cease threading when the end of the threading die is flat against the end of the pipe.

  • When the die is even with the pipe, that means the correct threading size has been reached.
  • If you continue pushing after this point, you will damage the thread.

12. Reverse the ratchet mechanism and turn the die head in the opposite direction.

  • Be careful to maintain control of the threader as the dies are removed.
  • Threads can become damaged when the die head is being removed if you don’t maintain control and move the piece smoothly.

13. Stand the pipe on end and gently tap it to remove any particles that may be lodged within.

14. Clean the pipe with a cloth, removing any oil.

  • Be careful, the threads will be very sharp.

15. Seal the threading with Teflon tape or a pipe thread compound when attaching the pipe to the connector.

16. Clean the pipe threader machine thoroughly after use so the oils and metal pieces do not damage the machine, which could cause sub-standard threading during your next project.

(This article comes from wikiHow editor released)

What is Pipe Thread?

Pipe thread is a spiral ridge on the end of a pipe that enables pipes to be joined together. For male fittings, this thread appears on the outer diameter of the pipe; if female, it appears on the inner diameter. By rotating a male pipe end into a female thread, the two fittings become joined.

Since male and female threads must align successfully to form a connection, manufacturers follow industry standards. The two main standards are the National Pipe Thread (NPT), and the National Standard Free-Fitting Straight Mechanical Pipe Thread (NPSM). NPT is a tapered thread that can make a close-fitting wet seal. NPSM is straight and only forms a mechanical seal; it is not used for liquid applications. In the United States, garden hoses have their own standard (GHT), as do fire hose couplings, which use the National Standard Thread (NST).

When joining NPT tapered pipe thread to make a leak-proof seal, professionals recommend using a sealer such as polytetrafluoroethylene (PTFE) tape. PTFE, more commonly known as Teflon®, is also the name of the best known brand of sealing tape. Tape should be wound tight around the male threads, running in the same direction as the lead thread so that the turning motion of joining the pipes follows the tape’s winding direction. Sealing tape makes it easy to drive the male pipe deeper by allowing the threads to slip past one another, while filling minute gaps to prevent seepage. Pipe thread tape also makes it easier to disassemble the joint later, if need be, by reducing thread galling, or the tendency of some types of threads to stick together over time.

Modern pipe sizes are stipulated by a measurement of the outer diameter (OD), which is measured over the pipe thread in the case of a male pipe. To be sure that the threads will match, you can also count the threads per inch (TPI). The inner diameter (ID) is sometimes used when buying polyvinyl chloride, or PVC, pipes.

Building codes require that piping meet certain standards depending on the application. Pressurized gas or liquid, natural gas, potable water and underground drainage pipes will be made of different materials. Note that local laws might require that only licensed contractors work on gas lines. Before undertaking any home piping project, check local building codes and take proper safety precautions.

(This article comes from wiseGEEK editor released)