A method for venting air from a fluid system through an air valve includes 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 surfa
A method for venting air from a fluid system through an air valve includes 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, a fastener extending through the fastener hole into the valve body; and venting air from the fluid system through the outlet.
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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
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; andventing air from the fluid system through the outlet. 2. The method of claim 1, wherein the valve body includes a cover mounted to the seat with a fastener, and the method further comprising tightening the fastener to deform the first sealing ridge and the second sealing ridge. 3. The method of claim 1, further comprising venting air from the fluid system through the bore to the outlet, the first sealing ridge and the second sealing ridge sealing against the valve body to prevent air or fluid from traveling between the upper surface and the valve body. 4. The method of claim 1, wherein the first sealing ridge has an outermost point, and the outermost point is separated from the second sealing ridge by a transition surface, the transition surface defining a distance that is less than a thickness diameter of the first sealing ridge. 5. The method of claim 1, wherein venting air raises a fluid level within the valve body towards the outlet and moves the float towards the seat to seal the outlet. 6. The method of claim 1, further comprising sealing the float against a lower edge of the bore of the seat. 7. The method of claim 1, further comprising sealing the float against the lower surface of the seat, wherein the lower surface is flat. 8. The method of claim 1, wherein the seat comprises rubber. 9. The method of claim 1, wherein the seat comprises plastic. 10. The method of claim 1, wherein the float comprises stainless steel. 11. The method of claim 1, wherein the first sealing ridge and the second sealing ridge are semi-circular in profile. 12. The method of claim 1, wherein the float comprises a first upper plug and a second lower plug attached at opposite ends of a guide shaft, and wherein moving the float away from the seat comprises moving the first upper plug and the second lower plug together along an axial direction of the guide shaft. 13. The method of claim 12, wherein venting air raises a fluid level within the valve body towards the outlet and moves the first upper plug towards the seat to seal the outlet and prevent fluid from escaping through the outlet. 14. The method of claim 12, wherein the second lower plug and the guide shaft of the float position the first upper plug between a fluid level and the seat. 15. 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 first sealing ridge defining an outermost point and a thickness diameter, the outermost point separated from the second sealing ridge by a transition surface, the transition surface defining a distance that is less than the thickness diameter, a fastener extending through the fastener hole into the valve body; andventing air from the fluid system through the outlet. 16. The method of claim 15, wherein the valve body includes a cover mounted to the seat with a fastener, and wherein the method further comprises tightening the fastener to deform the first sealing ridge and the second sealing ridge. 17. The method of claim 15, further comprising venting air from the fluid system through the bore to the outlet, the first sealing ridge and the second sealing ridge sealing against the valve body to prevent air or fluid from traveling between the upper surface and the valve body. 18. The method of claim 15, wherein venting air raises a fluid level within the valve body towards the outlet and moves the float towards the seat to seal the outlet. 19. The method of claim 15, further comprising sealing the float against a lower edge of the bore of the seat. 20. The method of claim 15, wherein the first sealing ridge and the second sealing ridge are semi-circular in profile.
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