Chemical eductor with integral elongated air gap

Details Chemical eductor with integral elongated air gap Chemical eductor with integral elongated air gap

1992-08-24

1993-10-19

Chambers, A. Michael

Fluid handling

Systems

Multiple inlet with single outlet

137896, F16K 100

Patent

active

052536777

ABSTRACT:
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.

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patent: 4721126 (1988-01-01), Horii

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