| 摘要 |
<p>A pressure actuated valve (11) includes a valve main body (21), an inlet opening (28) provided at the valve main body, an outlet opening (26) provided at the valve main body, a valve chamber (22) formed in the valve main body between the inlet opening and the outlet opening and operatively connected thereto, a valve seat (23) provided at an end portion of the valve chamber at the inlet opening side, a spherical valve (24) detachably provided in the valve chamber at the valve seat, a biasing member (25) biasing the spherical valve in a direction in which the spherical valve is pressed toward the valve seat, and a fluid pressure biasing mechanism (23a) provided at the valve main body for biasing the spherical valve in a direction perpendicular to a fluid flow direction by means of the fluid pressure in the valve chamber while opening of the spherical valve.</p> |
