stainless steel
Stainless steel water pipes are mainly used for water transportation and are the best direct drinking water delivery pipes. It has a low water leakage rate and can save valuable water resources. In the 1980s, the leakage rate of water pipes was about 17%. After switching to stainless steel pipes, the water leakage rate dropped to 7%. The water supply system in the earthquake was destroyed, but the stainless steel water pipe system was intact. In addition, compared with the copper water pipe, the stainless steel water pipe has good water permeability and does not corrode at a high flow rate. Its insulation is also 24 times that of copper tubes.
1 | Health and Wellness |
Stainless steel is a healthy material that can be implanted into the human body, so the choice of stainless steel tubing is the most beneficial for the water supply pipe. The soaking water test, all the indicators are in line with the national requirements for drinking water standards. The inner wall of the stainless steel pipe is smooth, it will not be fouled for a long time, and it is not easy to be stained by bacteria. It is not necessary to worry about the water quality being affected, and it can prevent the secondary pollution of water.
2 | Durable |
The thin and dense chromium-rich oxide film on the stainless steel surface makes the stainless steel water pipe have good corrosion resistance in all water quality including soft water, and has excellent corrosion resistance even when buried. The field corrosion test data indicates that the stainless steel water pipe The service life can reach 100 years, almost no maintenance is required in the life cycle, the cost and trouble of pipeline replacement are avoided, and the comprehensive use cost is low.
3 | High temperature resistance, high pressure resistance |
Stainless steel can work safely for a long time at -270°C-400°C. No matter whether it is high temperature or low temperature, no harmful substances will be precipitated, and the material performance is quite stable. The tensile strength of stainless steel water pipe is more than 530 N/mm, and it has good extension. Sex and resilience. The high strength of the stainless steel water pipe greatly reduces the possibility of water leakage caused by external forces, significantly reduces the water leakage rate, and enables the water resources to be effectively protected and utilized.
1. Card-pressed connection (same construction method for single and double-card) --------- Use radial contraction external force (hydraulic clamp) to clamp the pipe on the pipe and stop the water through the O-ring. Achieve the connection effect. The connection strength is high (the interface connection strength reaches 1/3 of the strength of the pipe body), and the pipe is not removable; the burr of the pipe port and the cleaning of the flashing edge are not clean, which will damage the rubber ring and become a hidden danger of water leakage in the future.
2. Grooved connection---------The pipe is clamped on the pipe by the radial contraction external force (screw), and the water is sealed by the wide-band rubber sealing ring to achieve the connection effect, detachable, pipe installation The process of increasing the tube end rolling convex ring; the interface strength is better than the clamping type.
3. Welded connection---------The hot-melt process is used to weld the two connecting pieces to achieve the connection effect. The joint strength is high, and the weld gas protection of the spot welding joint is difficult to reach the standard, which causes the weld seam to rust easily and directly reduces the service life of the pipeline; the installation quality has strong technical dependence on the welder and the quality is difficult to stabilize.
