Performance analysis of flame-retardant PVC of stainless steel corrugated gas hose: innovation of safety and product features

In the field of gas transmission, safety and environmental tolerance have always been the core propositions of technological innovation. Flame-retardant PVC of stainless steel corrugated gas hose adopts a double-layer corrugated stainless steel pipe structure. The inner layer is formed into a continuous closed cavity by high-precision laser welding, and the outer layer is spirally wrapped with high-strength steel belt, so that the axial tensile strength of the pipe body is increased to more than 8 times that of traditional rubber hose while bearing the blasting pressure. This composite structure not only effectively suppresses the resonance effect caused by fluid pulse, but also maintains a low deformation rate at special ambient temperature.

The application of flame-retardant PVC coating is another upgrade of the protection system. The coating can form a dense carbonized layer when exposed to flames, with an oxygen index of up to 32%. It can still maintain structural integrity for 30 minutes at high temperatures, which can win time for emergency cut-off in high-risk environments such as chemical parks or steel mills.

The innovative design of ZLR-03 hose reflects its adaptive solution to complex stresses. The corrugated structural unit adopts an asymmetric waveform design, and the peak curvature radius is optimized through finite element simulation, so that the stress concentration factor is reduced when the hose is subjected to multi-directional bending. The expansion of the safety dimension is not limited to physical protection. The hose is integrated with an embedded conductive layer design, and the surface resistance is controlled within the standard range, eliminating the risk of explosion caused by static electricity accumulation.