| 摘要 |
The valve assembly structure includes a valve body (3) having a fluid passage (4) therein to allow fluid to flow from one end port opening (6) to an opposite end port opening (7). The valve body (3) includes an annular sealing surface (8) cooperative with at least one of the end port openings (6, 7) with a valve stem (9) cooperatively aligned with such end port opening to open and close the same, the valve stem (9) having a collar (22) restrainedly fastened to such valve stem (9) to present an annular collar sealing surface (23) facingly cooperative with the annular sealing surface (8) on the valve body (3) to fluid seal the end port opening when the valve stem (9) is moved to a closed position. <IMAGE> |
