A check valve that controls fluid flow rates to maintain a predetermined, constant pressure upstream from the valve.

为保持阀的上游的预定不变的压力所用的控制流体流量的一种止回阀。

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All of the ion exchanger resins are temperature sensitive; therefore, a temperature diver valve bypasses letdown flow if the letdown heat exchanger outlet temperature rises to a predetermined value.

所有的树脂床对温度都有要求，因此当温度超过预定值时，下泄流将旁通净化床运行。

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A cool fluid of a predetermined temperature is supplied to a three-way valve (20) of a sub unit (2) from a cooling side tank (43) of a main unit (1) of a controller, through a supply pipe (14).

来自恒温维持装置的主单元(1)的冷却侧水箱(43)的被调整到预定的温度的低温循环液通过供给配管(14)被供给给辅助单元(2)的三通阀(20)。

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