Polyethylene connections

In general, polyethylene joints are produced from polyethylene material and by injection method and are divided into seven categories: screw, sewer, flanged, welded, hand-made, electrofusion and drip irrigation. Screw or threaded connections are connected to polyethylene pipes by internal or external threads and are mainly used in small projects and small-volume pipes with low-size pipelines. These fittings come in a variety of shapes and sizes, which we will discuss below. Screw or threaded connections are used to connect two polyethylene pipes without welding. These connections consist of several parts and their main application is in the water supply and irrigation systems of agricultural fields. Due to the lack of deposits, easy installation, long service life, reasonable price and flexibility, threaded connections are among the most popular products. Although welded joints are much cheaper and cost-effective, for small projects, it is not cost-effective to transport or rent a polyethylene welding machine and hire skilled labor to operate it. Polyethylene screw connections are limited to one type of working pressure of maximum 10 atmospheres and the size range is 20 mm to 125 mm, and because of the way they are attached to the polyethylene pipe, it is not possible in large sizes.

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دریافت کاتالوگ 20mg

All kinds of fittings produced by Mirab Isfahan Company

All screw connections include the following components:

1- Body 2- Head 3- Split ring 4- Bushing 5- O-ring

The advantages of screw or threaded polyethylene joints

  1. One of the most important features of polyethylene screw connections that distinguish them from welded connections is the ability to use them several times and the possibility of transferring them to another project. Therefore, they are much more economical.
  2. Compared to similar metal, steel and cast iron versions, these types of joints have more durability and longevity and excellent stability. Depending on the type of application, design and installation location, their average lifespan is estimated between 50 and 100 years.
  3. The extraordinary resistance to corrosion of these connections is compared to its metal types, which in metal piping systems, corrosion (both inside and outside) has a direct impact on hydraulic performance and creates high costs for the user.
  4. No need for specialized and heavy equipment, as well as special expertise and skills for using threaded polyethylene connections, and as a result, speed in operation.
  5. No need for protective coating to maintain longevity and resistance to corrosion and other problems.
  6. It has significant resistance and flexibility against impact and pressure and no need to use anti-impact equipment for them
  7. There is no need for a large space to install threaded polyethylene fittings