Patent ID: 9556965
Date: 2017-01-31
CPC Classifications: F16K,Y10T

Claim:
1. A method for venting air from a fluid system through an air valve comprising: moving a float away from a seat mounted within a valve body, the valve body having an inner surface and an outer surface, the inner surface and the outer surface defining an inlet and an outlet, the seat having an upper surface and a lower surface defining a bore and a fastener hole extending between the upper surface and the lower surface, the upper surface facing the outlet of the valve body and defining a first sealing ridge and a second sealing ridge between the bore and the fastener hole, the bore defining an inner edge, the first sealing ridge defining an innermost point and a thickness diameter, the innermost point spaced from the inner edge by a distance less than the thickness diameter, a fastener extending through the fastener hole into the valve body; and venting air from the fluid system through the outlet.