| 摘要 |
A fluid valve includes a sleeve (10) having an inlet (16) and an outlet (18). There ist a stem (34) movable within the sleeve (10) and having an inlet (68) and an outlet (72), with the stem inlet (68) being in communication with the sleeve inlet (16) and the stem outlet (72) being movable into communication with the sleeve outlet (18) to define a path of flow through the valve from the communicating inlets through the stem outlet (72) and the sleeve outlet (18). There is a check valve (62) movable within the stem (34). Water flowing in the direction of the path of flow maintaining the check valve (62) in a position unrestrictive to the path of flow. When water flows in a direction opposite to the path of flow, the check valve (62) will close the path of flow. |
