According to connection method classification (1) threaded connection valves: valve with internal thread or external thread, and pipe thread connection.
按连接方法分类(1)螺纹连接阀门：阀体带有内螺纹或外螺纹，与管道螺纹连接。
2
This invention relates to a washing device which is characterized in that a connectionvalve is provided which can prevent abluent foam from overflowing outside.
本发明涉及一种洗涤装置，其特征是：具备有可以防止洗涤剂泡沫通过换气构件溢出到外部的连接阀。
3
For foot valve, replace inlet end connection with an F. V. screen housing assembly.