| 摘要 |
<p>This invention is a suction control valve (10) including a primary suction device access (15), an ancillary suction device access (16) and a linearly actuated valve core to open and close various flow passageways (40). The valve generates a "hissing" auditory signal indicative of the presence of suction pressure within the valve. The valve is adapted for gas sterilization.</p> |
