- The fact that today PE pipes are used for transmission of water and gas means that PE pipe producing companies must supply the right size for different applications. PE pipes are regarded as a multipurpose type of pipe produced in different sizes ranging from below one inch to 24 inches, that is (16 to 630 millimeters). The criteria used for sizing PE pipes are taken from INSO 14427 international standard, and the sizing unit is millimeters. But as most users are familiar with inch, for more convenience we have converted all sizes into inches. PE pipes come in 25 different sizes, and each size is used for a specific purpose.
- Size 3.8 inches pipe is the smallest size produced this kind of type is widely applied in agriculture, particularly dripping irrigation in greenhouses and dripping fittings, what makes these pipes stand out is their resistance and durability in the face of environmental conditions.
- Size 1.2 inches pipe is another pipe size mostly used in agriculture and irrigation systems. It is also known as single-chambered pipe while ordering 1.2 inches pipes we must remember to figure in the pressure of farm water and select among pipe pressure ranges of 6, 10, 16, or 20 bar.
- Size 3.4 inches pipe is mainly produced in coils of 100 and 150 meters. This type is widely used in gardens and applied for low volume fluids because it comes with the advantage of tight waterproofing power and covers 2 pressure classes of 16 and 10 bars.
- Size 1-inch PE pipe is mainly produced in coils of 100 to 150 meters. It is produced to tolerate different pressure classes. Ranging from 6 to 32 bars. This size is commonly used in agriculture and places where fluids of low flow rate are used.
PE Pipe Sizes
Polyethylene pipe commonly Kwon as PE pipe is designed in different sizes to meet different requirements. In this part, I try to introduce some frequently used sizes of PE pipes, with their area of application. 
11.4 inches PE pipes are applied in transferring water for irrigation purposes. They come in different pressure classes ranging from 6 to 32 bars. with a diameter of 40 mm is produced in straight 6-meter units and 100-to-150-meter coils. 11.2 inches PE pipes are generally considered appropriate for low flow rates in agriculture, and irrigation. The diameter of this size is 50 mm, and it is appropriate for pressure classes of 5 and 32 bars. 2 inches polyethylene pipes are regarded as the quintessential size used in different industries and projects. The 63 mm-diameter pipes can sand different pressure classes namely 5 and 32 bars. it is produced as 6-meter units and in coils of 100 and 150 meters.
PE Pipe Fittings Catalog
PE pipe production companies unanimously catalog fittings for PE pipes under the general term polyethylene. The fact that PE pipes can be joined very easily compared to other types of pipes is a distinguishing advantage for polyethylene pipes compared to other types of pipes. PE pipe fittings are used in cases such as changes in pipeline angle or diameter are needed. various applications of fittings in polyethylene pipes include spiral fittings, coupling, threaded fittings, high pressure splicing polyethylene fittings, and drain water polyethylene welded fittings. Electrofusion and handmade. Based on their requirements spiral or splicing Electrofusion fitting is used in major gas or water distribution pipelines. Electrofusion PE fittings are for example used in countrywide gas transmission projects or treaded fittings are used in water transmission projects with a pressure of up to 10 atmospheres. 
For other projects splicing fittings are used according to DIN 16963. Polyethylene fittings often come with the following characteristic. They are highly resistant to breaking and cracking due to external pressure or blow chemical substances, Abrasion, rusting, and corrosion, they show very high resistance against seismic vibrations. The wall on the inner side of the pipe is smooth, so it won't absorb sedimentation, and pressure loss resulting from friction with the pipe's inner surface is very small. There is no need for heavy road-building machinery when constructing pipelines.
Polyethylene Pipe Screw Fix
In a comparison carried out in the Kia pipe company laboratory, the polyethylene pipe products were stacked up against the pipe sold on Screw fix and the results in most cases were higher in terms of tensile strength, resistance against corrosion, and breaking threshold index. 
The most significant difference was found for high pressure, due to their high density and improved formula, PE pipes HDPE can stand a pressure 5 times more than ordinary pipes. and are used mostly in intercity projects water, gas, oil, and other petrochemical fluids. The material used in HDPE pipes does not have any adverse effects on the environment. High-density HDPE pipes can stand high temperatures. Their effective lifespan is a minimum of 50 years in underground conditions. HDPE pipes are anticorrosive and are not affected by microorganisms such as fungi or moss.
Polyethylene Pipes for Water Supply
For ensuring a safe and sound filling and emptying of a water supply appropriate polyethylene pipe can be a choice of confidence. Polyethylene water supplies are widely used to supply water, in buildings for example for fire and safety measures in buildings, and plastic Bathtubs. holes can be punched in them; different fittings can be attached. Polyethylene water supplies are originally produced without any holes in them, like a box without any extra joint, so based on the requirements of the installation position the customer asks for the customization. 
There exist numerous reports of substandard fittings, low-quality material, inappropriate engineering designs, or wrong choice of pressure class in the records. Considering the importance of quality in assuring a long life for infrastructure in both major and minor projects and avoiding damage due to leakage poor installation quality and faulty engineering aspects of the pipes and other associated equipment, Kia pipe offers discreet consultation about kind, form, material, and size of pe fittings, pipes for all projects.