This paper summarizes and analyzes the actual treatment technology at home and abroad, and emphatically introduces a selfoperated multi functional pressure regulation valve developed by the authors.
通过对国内外现行处理技术的分析，研制了自力式多功能减压阀。
2
The theoretic basis for controlling flow of heating medium by self-operated flow control valve is analyzed, and the structure and operating principle of the valve are studied.