Seals can be polymer materials, asbestos or rubber seal material selection depends on the valve components of the transmission medium, operating temperature, working pressure and flow rate.
密封件可以是高分子材料、石棉或橡胶，密封件材料的选择取决于阀门所输送的介质成分、工作温度、工作压力和流速。
According to the medium, temperature and pressure, the switching mechanism may be equipped with various types of safety valves so as to adapt the various working conditions.
切换机构上可根据使用介质、温度、压力的不同，配以不同型号的安全阀，以适应不同的工况条件。
According to the medium, temperature and pressure, the switching mechanism may be equipped with various types of safety valves so as to adapt the various working conditions.
切换机构上可根据使用介质、温度、压力的不同，配以不同型号的安全阀，以适应不同的工况条件。
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