Precautions for carat tube procurement in urban and rural pipe network transformation projects

Priority is given to matching project conditions and selecting pipe parameters

The transformation of urban and rural pipe networks covers multiple scenarios such as rain and sewage diversion, water supply transmission, and pipe network shortcoming. The parameter requirements for carat pipes vary greatly under different working conditions: for sections with a depth of more than 3 meters, products corresponding to the ring stiffness grade should be selected to avoid pipe deformation caused by land settlement and extrusion in the later stage; sewage pipe networks should prioritize products with acid and alkali corrosion resistance standards to meet the transmission requirements of domestic sewage and mild industrial wastewater; it is also necessary to calculate the peak flow of the pipe network in advance and match the pipes of the corresponding caliber to avoid problems such as poor drainage and insufficient water supply pressure.

Strictly verify core performance to avoid hidden dangers of low-quality products

The core performance of the carat tube directly determines the service life of the pipe network. Before purchasing, three indicators should be checked: first, the quality of raw materials, high-quality carat tubes are made of high-density polyethylene as the core raw material, and there is no variegated return material addition. The pipe wall is smooth and free of bubbles and cracks. Second, the flexibility and impact resistance of the measuring ring. Carat tubes that meet the standards can withstand a certain degree of deformation and recover quickly without brittle cracking. Third, check the sealing performance of the interface, and give priority to products with mature electric melt socket interface technology to avoid secondary pollution caused by leakage of the pipe network in the later stage. When purchasing, the supplier can be required to provide the corresponding batch of national standard test reports to verify the authenticity of the parameters.

Advance docking of construction requirements to reduce landing adaptation costs

In the procurement stage, it is necessary to consider the suitability of subsequent construction in advance to reduce the cost of landing: first, it is necessary to confirm whether the supplier provides welding equipment and on-site technical guidance to avoid the failure of the interface seal due to irregular operation; secondly, the pipe size can be customized according to the length of the project construction section to reduce the waste of consumables and labor costs for on-site cutting; it is also necessary to confirm the pipe transportation protection standards to avoid bumps and scratches on the outer wall and interface position of the pipe during transportation, which will affect the construction quality.

Verify supply assurance capabilities and match the pace of project advancement

Urban and rural pipeline network transformation projects often have tight construction periods and involve scattered road sections. When purchasing, it is necessary to confirm the supplier's supply scheduling capabilities in advance, and the time node for batch supply can be agreed to avoid delays in the construction period. At the same time, it is necessary to confirm the after-sales response mechanism. Once problems such as parameter adaptation and product quality occur during the construction process, technical support can be quickly obtained to ensure the pace of project advancement.