摘要
对现有止回阀的性能、结构进行了分析，设计了一种可以随意安装于各种方向的管道中的超低压 力启动上回阀。
The performance and structure of existing back valve are introduced, and an ultra-low pressure startup back valve, which can be fixed freely in any pipes with any directions, is designed.
出处
《机械工程师》
2001年第2期33-34,共2页
Mechanical Engineer
关键词
止回阀
超低压力
启动
管道
back valve, ultra -low pressure, startup
