Minimum deviation from optimum gasket loading is obtained. Bolted load provides necessary gasket stress to seal upstream fluid from downstream. Also, to seal down-stream fluid from atmosphere.

• 良好的密封载荷可以使偏差达到最低。螺栓负载为来自下游的密封逆流提供必需的垫片应力，同样也为来自大气的下游介质提供必需的密封应力。