Hose assembly should be mounted between valve ahead tank and pipe to lighten damage form earth quake, compensate sinkness of base, expension or contraction of pipe system and installation deflection.

• 安装于储罐的进出品管系，主要安装在罐前阀之后，减轻储罐的地震破坏以及用来补偿储罐的地基下沉，管线的热胀冷缩，施工时的安装偏差。