Tightness test both the shell and tube sides of the exchanger to check that the flange gaskets are holding tight.

紧力测试对热交换器的管程与壳程，检查法兰垫圈是否紧密。

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Tightness test both the shell and tube sides of the exchanger to check that the flange gaskets are holding tight.

紧力测试对热交换器的管程与壳程，检查法兰垫圈是否紧密。

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