| 摘要 |
The disclosure is directed to a coupling including a main body, a rotatable member, and a seal member. The main body has an internal passageway for fluid flow therethrough, and includes a first portion defining a first end of the coupling and includes a second portion defining a second end of the coupling and forming an abutment structure. The rotatable member encircles the main body along the second portion, and includes an engagement structure for engaging a complementary structure. The rotatable member has first and second opposite axial ends, and the seal member is disposed between at least one of the first and second opposite axial ends of the rotatable member and the main body. |
