Plug for quick disconnect coupling

摘要

A plug for a quick disconnect coupling for connecting an hose and being received in a socket, the plug has a hose fitting portion and a socket fitting portion. The hose fitting portion is fitted with the hose. And the socket fitting portion being received in the socket includes holes for letting its internal space communicate with the outside arranged radially in the socket fitting portion. Furthermore, the socket fitting portion may includes a self-seal valve for sealing a head opening of the socket fitting portion.