【Daily Question】Catalytic Coking Reformate Blending Version 20170811
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An air-operated actuator of the direct-acting type gradually opens the valve as the signal pressure increases
This post was last edited by Peng Zuosen on 2017-8-11 at 12:18 to increase/expand it
An air-operated actuator of the open-type type means that the valve opens when the signal pressure 【increases】