To replace a module, simply remove four screws and replace with a new module.

要替换的模块，只需删除四个螺丝，代之以一个新的模块。

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To replace seat module, pull out of body by gripping at reinforcement ring.

为了更换阀座模块，通过抓住加强环将其拔出阀体。

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To replace seat module, pull out of body by gripping at reinforcement ring.

为了更换阀座模块，通过抓住加强环将其拔出阀体。

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