This paper introduced control valve selection and its application based on the theory of flow characteristic, pressure drop, flashing, cavitation and noise.
针对调节阀的流量特性、压降、闪蒸、气蚀及噪音等问题介绍了调节阀在选型和应用中的要点。
As guided needle valve system is greater than the amount of water displacement, the main valve pressure drop in the control room.
由于导阀系统排水量大于针阀的进水量，主阀控制室压力下降。
With the existing allocation of the traditional air control valve, its light weight, compact circuit, easy to install, reliable performance, pressure drop characteristics of a small loss.
与现有传统的气控分配阀相比，其具有重量轻、油路紧凑、易于安装、性能可靠、压力失降小的特点。
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