| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipe joint which can easily be vented without deteriorating functions and can be used well in different ways according to conditions. SOLUTION: In a pipe joint having a first approximately cylindrical connection 9 having one pipe connected to one end and a second connection 11 having the other pipe connected to the other end, with the first connection located above the second connection, sealing connections 12a, 13a to which one of the pipes is connected under a sealed condition and venting connections 12a, 13b to which the same pipe is connected under an unsealed condition are joined with the first connection along the direction of the axis of the pipe joint.</p> |
