Views: 14 Author: Site Editor Publish Time: 2019-01-02 Origin: Site
HDPE/PP Gas Pipe systems with various stiffness classes which are designed for utility and industrial applications. It is made from High Density Polyethylene (HDPE) or PP to manufacture these pipes. The diameter of HDPE/PP Profile Pipe is from DN/ID300mm to DN/ID 4000mm. The ring stiffness is SN2, SN4, SN8, SN16 or according to customer requirements.
In Europe, HDPE Profile Pipe has been developed and applied more rapidly. HDPE Profile Pipe has gradually replaced the status of PVC-U Profile Pipe and become the main consumer pipeline. At the same time, HDPE Profile Pipes are gradually being used outside Europe.
Pipes should be manufactured using the original resin of 0% recycled materials.
The HDPE material used in the manufacture of polyethylene tubes shall be PE 4710/PE100 in accordance with ASTM D3350 classification; and listed in the PPI (Plastic Pipe Institute) TR-4 with the standard level HDB ratings of 1600 psi at 73°F and 1000 psi at 140°F. The material should also be included in the same PPI file as PE 100, with a Minimum Required Strength of 1450 psi at 68°F.
HDPE Spiral Profile Pipe will be melted between the temperature 190℃~240℃, using this characteristic to fully contact the two molten parts of the pipe, and to maintain the appropriate pressure, after cooling the two can be firmly integrated. Therefore, HDPE Spiral Profile Pipe is usually used in two ways, such as electrothermal melting connection and hot melt docking.
Because the standard piping is between 5.5 and 6 meters in length and is extremely lightweight, it is easier and faster to install pipes. Therefore, in most cases, the installation and handling of gas pipelines does not require heavy machinery. Most treatments can be done by on-site excavators, which saves more time.
At the end of the work, thoroughly clean all new pipes to remove all dirt, stones, wood blocks or other materials that may enter during construction. The flushing speed should be at least 2.5 feet per second. All rinsing should be coordinated with the ASPA inspector and the Water resources department.
Abrasion Resistant：Krah Pipes are among the most abrasion resistant pipes, which has been tested in the Darmstadt procedure.
UV-Resistant: Black polyethylene pipes are permanently resistant to atmospheric corrosion and UV radiation, as the polyethylene used contains carbon black which acts as both a pigment and an ultra violet stabiliser. Thus the pipes can be used and stored outside without the pipe material being damaged.
Resistant to Micro Organisms: Krah Pipes are not nutrient media for bacteria, fungi and spores, so that the material is resistant to all forms of microbial attack as well as both sulphurous acid and sulphates.
Eagle Machinery Co., Ltd is located at QINGDAO, is the professional manufacturer to produce large diameter HDPE/PP spiral profiled pipe production line. We have successfully provided all of the world with profiled pipe production line from DN300mm to DN4000mm and have more than 8 years experience.