| 摘要 |
<p>An improved venturi eductor for proportional dispensing of chemicals into flowing water includes a large antisiphoning air gap section to satisfy water system regulations. The air gap section includes an outer wall and an inner wall with a gap between the walls. Both walls include offset windows that provide a circuitous path from the center of the air gap to the exterior of the unit. Passageways extend from the gap to a downstream section of the unit to carry away fluid that might collect in this gap. Further, the shape and location of various orifices within the device creates a slight suction to further limit overspray.</p> |
