Patent ID: 8240333
Filing Date: 2012-08-14
Classification: E03B,F16K,Y10T

Abstract:
1. A backflow release valve for a backflow event in a supply line, comprising: an air-liquid separator in fluid communication with the release valve and the supply line for reducing the amount of air entrained within a liquid solution entering the release valve, the separator having a first passage in air-flow communication with a first passage of a valve seat, a second passage in fluid-flow communication with a second passage of the valve seat, and a divider wall dividing the first and second passages at the valve seat, wherein the divider wall initially extends horizontally away from the valve seat and then turns vertically such that the first passage extends vertically above an expected waterline of a backflow situation and the second passage extends to below the expected waterline of the backflow situation; and wherein the divider wall terminates at the valve seat in a protruding alignment tab that engages a divider wall of the valve seat to align the separator with the valve seat and maintain the division of the first and second passages from the valve seat through the separator.