从模具囬来的高温水经过管路囬到模温机，经泵浦加压后输送到加热器，通过电热管加热送至模具，如此循环。
Die from the back of high temperature water through the pipe back to mold temperature machine, the pump pressure delivered to the heater, the heating tube is sent to die, so the cycle.
主要用于高压加压的天然气加气系统，防止加压天然气倒流的阀门。焊接式高压单向阀是靠管路中介质本身的流动产生的力而自动开启和关闭的，属于一种自动阀门。
Welding type high pressure check valve is generated by the pipeline flow of the medium itself force automatically turned on and off, is an automatic valve.
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