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English Translations » 【化工工程交流】 » Fundamentals of Manufacturing Processes (Multiple Choice) 20

Fundamentals of Manufacturing Processes (Multiple Choice) 20180802

2018-08-02View Original

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Among the following hydraulic control valves, those that belong to pressure control valves are . A. Unloading valve B. Relief throttle valve C. Hydraulic check valve D. Low-pressure selector valve Hint: The unloading valve is a valve controlled by a pressure signal; when a pressure signal is applied or released, it connects the main oil circuit to the return tank line in order to release the pressure oil.
Reply #22018-08-02
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Translated at 2026-07-21 03:57:35

Original: https://bbs.hcbbs.com/thread-2034800-1-1.html

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