When the chical process pump transmission medium, the tperature and pressure is not high, the general choice of non-metallicgasket;
当化工流程泵输送介质，对于温度和压力不高时，一般选用非金属弥缝垫片；
2
According to the fractal geometry theory and the non-compressed viscous fluid laminar flow theory, the leakage model of metallicgasket based on fractal parameter was established.
TD-SW700Spiral-Wound gasket is formed of V-shaped metallic stripe and soft non-metallic filler by means of piled, spiral wound and connected its end and beginning by dot welded.