节流调节 meaning in English

throttle governing
throttling control
throttling governing

The delivery pressure acting on the spring loaded diaphragm throttles the balanced valve to control the pressure
水输出压力在弹簧负载隔膜的作用下对平衡阀进行节流调节，以控制水压。
An engineer case is introduced , which is about " the reconstruction of high voltage fan ' s speed - adjusting by frequency conversion and the design of plc ( programmable logic controller ) control system in shui cheng iron and steel company " . in this project , an advanced controlling technology , based on the method in this paper , is used to realize the closed loop control of discharge header pressure of two coke ovens
介绍“水钢煤焦化公司鼓风机高压变频调速及系统plc控制改造”的工程概况，对煤气鼓风机采用先进的变频调速技术和计算机控制技术进行改造，实现对两座焦炉集气管压力自动调节的闭环控制功能，既满足了煤气量的自动调节的要求，又避免了煤气鼓风机出口阀门的节流调节，节能效果相当可观。