BITE TYPE PIPE CONNECTION STRUCTURE, VALVE, BITE TYPE PIPE JOINT, AND FREEZING DEVICE

摘要

A bite type pipe connection structure is used to connect a large diameter pipe that is previously set as a standard specification. The bite type pipe connection structure includes a spacer 71 that is used for connecting a small diameter pipe P3 and serves as insertion port adjusting means for adjusting a gap between the insertion port 16 and the small diameter pipe P3, a step portion 73 serving as a step portion for small diameter that regulates the position of the tip of the small diameter pipe P3, and insertion-through hole adjusting means for bridging a gap between the insertion-through hole for large diameter of a ferrule for large diameter and the small diameter pipe P3 to adjust the insertion-through hole. The insertion-through hole adjusting means is obtained by replacing the ferrule for large diameter 3 with a ferrule for small diameter 6. This makes it possible to connect the small diameter pipe P3 with a joint main body 1 attached to an apparatus.