You can solve this problem by adding a modulatingvalve as a flow control, which can be a controlled by a thermocouple attached to the feed throat.
你可以加一个调节阀作为流体控制的手段来解决这个问题，你在喂料口上加一个热电偶就可以了。
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Unique, modulating action pilot operated relief valve with soft seats having the ability to handle hot water, steam, hot hydrocarbon vapors or liquids, using inert plastic soft goods.