CORRUGATED PIPE GENERAL SPECIFICATIONS
Sewer pipes are produced from Polypropylene and Polyethylene raw materials in Polyolefin group. Extruded corrugated pipe produced up to Ø1000 mm diameter can be produced from polyethylene and polypropylene raw material; while spiral chopped pipe polyethylene is produced. In the same effect, the ring strength value is higher than that of polypropylene. With the spiral method, Ø300 mm diameter and above pipes are produced.
Injection fittings are produced for the connection of extruded core pipes. The gaskets on the outer surface of the pipe is fitted and passed through the fittings. The spiral chisel pipes can also be combined with the extruder source, the sealed method, as well as the electrofusion method. This joining method makes the pipes normally used at pressures of 0.5 bar available even at 4 bar.
On this occasion, the pressure increases in the rains which continue to flood, the pipes continue to work without leakage and damage to the joints.
Corrugated pipes are not affected by corrosion; they are sold with a life guarantee of 50 years due to high wear and chemical resistance. They perform their activities without being affected by earthquakes like quakes with flexible structures.
Sealing is provided throughout the life of the pipe to prevent contamination of groundwater and soil. It is not the case that the tree roots enter the pipe and close. Lightweight, small-diameter pipes can be laid without the need for a work machine.
Corrugate Pipe Usage and Basic Specifications
High resistance to abrasion and excellent resistance to chemicals
It is desirable that pipe materials used in sewerage systems are not worn out and resistant to chemicals. Aggressive chemicals, both in the wastewater and in the soil have damaged pipe materials in existing sewer networks. Polyethylene raw material is a corrosion resistant material and is the ideal pipe material for long-lasting sewage systems.It can also be used for storage and transfer of chemicals.
Convenience in storage and transportation with telescopic stacking
Corrugated pipes are very light and resistant to impact at the same time. There is no waste during transport and storage. Because it is lightweight, it can be stocked or transported easily by putting it inside.
Easy joining methods
Corrugated pipes are joined together with bellows seal or sleeve seal. Head connection can be done easily in any kind of construction site environment. Since the construction site is light in all kinds of horizontal-vertical transport, the minimum requirement for the work machine.
Ease of Flooring
Since corrugated pipe is light, heavy equipment is not needed during laying. Due to the easy joining methods, the laying speed is higher than other pipe materials. It is a pipe material used especially in urban areas and sites where the construction season is short.
Sealing is provided up to a pressure of 0,5 bar in the systems where the joining method with sealed gasket and sleeve sealing is applied. In this respect, sewage wastes do not spread to groundwater and are protected on this site. In addition, in places where ground water is high, water entry from the outside into the sewer system is prevented. This prevents the line from overfilling and overflowing.
Ease of repair and maintenance
The inner surface of the corrugated pipe can be manufactured in light color, allowing the control of the sewage network with a camera if required.
The design life of corrugated pipes is at least 50 years. For this reason, operating and maintenance costs are minimal.
Smooth flow surface
Since the hydraulic roughness is very low compared to other pipe materials of corrugated pipes, a lower diameter can be selected and used by going to the diameter optimization in the sewage system. Thus, the cost of laying the project site can be reduced compared to the concrete pipe. In addition, the smoothness of the surface prevents the solid particles in the system from adhering to the inner surface of the pipe and prevents the narrowing of the section that may occur over time.
Since corrugated pipes are flexible, they adapt to ground movements and there is no deformation.
The breakage and losses are zero during the production of the desired length.
Bellmouth pipes are standard 6 mt. are produced in the lengthwise direction. Non-bellmouth pipes can be produced according to customer demand in desired size.
Related standards Pr-En 13476 -1, CEN/TC 155WI 011
CORRUGATED PIPES SUPERIORITIES
• Has a service life of 50 years.
• Water retains its natural properties and is hygienic.
• Can be produced in coil and length. Especially in coil pipelines it provides very fast line laying.
• It is easy and economical (due to its bendability up to 18-50 times the pipe diameter depending on the meat thickness) due to its flexibility [it allows less elbow use].
• Adapts to soil movements such as earthquake and ground motion.
• Provides secure and practical connectivity solutions.
• Modern flooring techniques can be applied.
• Provides high resistance to chemicals, does not suffer corrosion.
• It is not affected by sunlight thanks to UV additive.
• Since the inner surface of the pipe is smooth, the particles in the fluid can not hold onto the inner surface of the pipe and there is no time-dependent narrowing of the cross-section. It provides a higher flow rate.
• Does not catch algae on the inner surface of the pipes and does not produce bacteria.
There are two different production methods of corrugated pipes. They are produced on continuous mandrel with single process extruder and spiral method. The production capacity of extruded corrugated pipes is very high and the ring strength is fixed as the product shape can not be changed. The spiral corrugated pipes can be produced at optimum weight depending on the desired ring strength value depending on the project.
The pipes consist of two layers, the inner pipe layer and the outer rib layer. The inner layer is the flat surface pipeline carrying the fluid. The outer layer is the ribbed structure. Both layers are molecularly linked to each other. The external hollow ribbed structure is preferred because it can carry loads close to the full structure required by the physical laws, thus saving raw material and reducing the weight of the pipe.
The extruded corrugated pipe exits as two layers from the extruder and the outer layer is shaped by the molds.
In the case of the helical corrugated pipe, the inner pipe is first made into a pipe by wrapping the polyethylene strip in the mandrel over the mandrel.
Subsequently, the profiled product is wound onto the tube and welded. Both products are monolithic with their welded structure.