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HW - Model Type B -Polyethylene Spirally Enwound Structure-Wall Pipes
Krat tube, also known as polyethylene winding structure wall B-type tube, is a type of flexible pipe with a smooth inner wall and spiral reinforced ribs on the outer wall. It is made of a ribbed tube with an O-shaped interface between the bottom film and ribs through a spiral winding process. Using high-density polyethylene as the raw material, it is formed in one go through the winding process in the hot melt state, and cooled by rolling air cooling before demolding in the hot state. The pipeline gradually dissipates heat, with uniform wall thickness and no internal stress.
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- Standard :GB/T19472.2-2019 BS EN 13476.3 2018
- Ring stiffness:SN4,SN6,SN8,SN10,SN12.5
- Size:DN200~3000mm
- Length:6meter or customization.
- Color:black inside and out side,other color customization accepted.
- Pressure Non-pressure
- Size DN110-3000
- Standard GB/T19472.2-2019 BS EN 13476.3 2018
- Packing 11.8m, or 5.8m/pcs
- Delivery 7-15 days depending on the total quantity
- Color Black
- Inspection Raw material inspection.Finished product inspection.Third party inspection on request.
- Joint Electric Fusion
- Good flexibility: able to adapt to construction under poor foundation conditions and resist uneven settlement;
- Environmentaflexibility: Pipelines belong to flexible pipes, which can undergo significant deformation before being compressed and damaged. Externapressure loads wilbe transmitted and distributed to the surrounding backfilsoil.
- Convenient connection: Adopting socket type electric fusion connection and socket type sealing ring connection, simple and fast;
- Good sealing performance: adopting socket type electric fusion connection can achieve zero leakage;
- Corrosion resistance: Pipeline materials are corrosion-resistant, so they wilnot be corroded by acid, alkali, and oiin sewage and wastewater;
- Cold and heat resistance: The pipes wilnot freeze or expand or leak water in an environment of minus 60 ℃; The pipeline can maintain good performance within 45 ℃;
- Lightweight: The pipes have low requirements for the bearing capacity of the foundation and are beneficiafor reducing the utilization rate of machinery:
- Low construction cost: lightweight, easy to connect, can save required working time and engineering costs;
- Wear resistance: PE is a wear-resistant materiawith a resistance four times that of steepipes and a long service life;
- Non toxicity: PE is a hygienic and non-toxic material, with no toxic gas emissions during combustion and no hidden danger of "white pollution";
- Good hydraulic performance: smooth interior, low friction resistance, and fast drainage speed.
- Municipawater supply and drainage: municipadrainage and sewage pipes;
- Petroleum industry: oiand gas pipelines;
- Coaindustry: medium transportation engineering, various ventilation systems;
- Chemicaengineering: corrosive fluid pipeline;
- Environmentaprotection projects: deep-sea sewage discharge, sewage treatment, garbage dump sewage discharge and detoxification pipeline;
- Power engineering: circulating water pipeline.