蝶阀的选用与安装
Selection and installation of butterfly valves
摘要：
针对目前暖通空调、给水工程中蝶阀存在的因关闭不严而产生内漏的问题，介绍了中线蝶阀、双偏心蝶阀和三偏心蝶阀的构造及特点，探讨了蝶阀选择、安装、使用中应注意的问题。
关键词：中线蝶阀 双偏心蝶阀 三偏心蝶阀 内漏
Abstract：
In view of the inner leakage caused by untightly closing of butterfly valves in HVAC and water supply projects currently, presents the structure and sealing principle of centrepivoted, doubleeccentricpivoted and tripleeccentricpivoted butterfly valves. Probes into the issues that should be concerned in selection, installation and application of butterfly valves.
Keywords:centrepivoted butterfly valve, doubleeccentricpivoted butterfly valve, tripleeccentricpivoted butterfly valve, inner leakage