A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.
浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。
Internal expansion joint shall be adopted to single tube side float head heat exchanger for avoiding from large temperature difference stress, when design pressure on shell side is larger.
设计单管程浮头式换热器时，为避免较大的温差应力，在壳程设计压力较大的状况下，常采用内置膨胀节的形式。
Internal expansion joint shall be adopted to single tube side float head heat exchanger for avoiding from large temperature difference stress, when design pressure on shell side is larger.
设计单管程浮头式换热器时，为避免较大的温差应力，在壳程设计压力较大的状况下，常采用内置膨胀节的形式。
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