HDPE pipe fitting suppliers explain the working principles of Krab pipe: Krab pipe is formed by high density polyethylene (HDPE) Fitting structure wall Pipe. HDPE Fitting structure wall pipe is made of high density polyethylene resin as the primary raw material and adopts the high density polyethylene (HDPE) fitting process. Using polypropylene (PP) single wall corrugated pipe as support structure, the special structural wall pipe with strong resistance to external pressure is made.
The pipe connection of carat pipe adopts the technology of embedded-electric fuse and raw material plug electric fusion connection, and the connection quality is elevated. It can be 100% leak-free to ensure the same life of the pipeline system and the safety of operation. At the same time, because the product under equal use conditions than other pipe weight, convenient transportation, convenient construction, can reduce the construction cost, in the range of use, do not need concrete bedding and concrete pipe base trench qualified can be directly applied pipe, essentially do excavation, pipe down, side backfill, simplify the construction procedure, shorten the construction period.
High density polyethylene (HDPE) surround structural wall pipe has excellent flexibility in macro, and some pipe segments have strong rigidity and overall resistance to external pressure, which can ensure the safety of traffic when used under the road surface with overweight load. Because of the flexibility of the pipe, it can also minimize the damage and loss of the pipe in the event of earthquake, uneven settlement of the surface and other geological activities, so as to improve the ability of seismic disaster reduction of public facilities.
The production process of carat pipe
1. The high efficiency extrusion surround molding and synchronous PE extrusion welding process are used in the production line of carat pipe to produce high-performance HDPE pipe of structural wall and large diameter pressure water supply pipe, with high finished ring stiffness and impact strength. The PLC control system is selected for the production line, with an intelligent interface of man-machine dialogue, simple operation and linkage.
The molten strip and U-shaped strip extruded from the extruder's mouth die are evenly wrapped around the heated roller die according to the predetermined orientation to ensure the melting joint quality of the structure wall pipe. Especially in the structure design, the melt joint of the flat material belt is covered by the U-shaped material belt covering support tube, which improves the ability of resist external pressure of the whole product.
2. Carat pipes have excellent sealing. PE pipe itself is welded (hot melt or electric melt), essentially ensuring the interface raw materials, structure and the identity of the pipe body itself, to achieve the integration of joint and pipe. The tensile strength and explosion strength of the interface are higher than that of the pipe body, which can effectively resist the circumferential stress and axial stress caused by internal pressure. Therefore, compared with rubber ring connections or other mechanical joints, there is no leakage risk caused by bending connections, and the sealing performance is extremely excellent.
3. Carat pipes are mainly used in municipal underground drainage, sewage discharge, rainwater collection, water transmission, ventilation and so on. Can be used for railway, highway, golf course, football field, such as seepage, drainage pipe. Because polyethylene, polypropylene material has the ability of acid, alkali and corrosion resistance, widely used in nuclear power, steel mills, power plants, petrochemical, wharf, station and other categories, especially in the beach, saline-alkali land, seabed bed, soft root expansive soil, seismic zone and other harsh environments have outstanding advantages.