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A neck assembly of a fuel system component comprises a housing. The housing comprises a sleeve having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion. The housing further comprises an encapsulation ring extending radially outwardly

A neck assembly of a fuel system component comprises a housing. The housing comprises a sleeve having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion. The housing further comprises an encapsulation ring extending radially outwardly from the second end portion of the sleeve and encapsulated within a wall of the fuel system component. The neck assembly further comprises a valve cartridge at least partially received within the sleeve and secured thereto. The valve cartridge comprises a conduit having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion.

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1. A neck assembly of a fuel system component comprising: a) a housing comprising (i) a sleeve having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion, and (ii) an encapsulation ring extending radially outwardly from the second end

1. A neck assembly of a fuel system component comprising: a) a housing comprising (i) a sleeve having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion, and (ii) an encapsulation ring extending radially outwardly from the second end portion of the sleeve and encapsulated within a wall of the fuel system component, wherein encapsulation of the encapsulation ring anchors the housing to the fuel system component;b) a valve cartridge at least partially received within the sleeve and secured thereto, the valve cartridge having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion, the valve cartridge defining a conduit for fluid flow;c) a first annular seal disposed between the sleeve and the valve cartridge; andd) a second annular seal disposed between a shoulder in an outer surface of the valve cartridge and an outer surface of the wall of the fuel system component such that the second annular seal contacts each of the valve cartridge and fuel system component to form a seal therebetween, wherein the valve cartridge shoulder is positioned in facing relation to the outer surface of the wall of the fuel system component. 2. The neck assembly of claim 1, wherein: a) the sleeve comprises an inner surface;b) a portion of the outer surface of the valve cartridge is in facing relation to the inner surface of the sleeve; andc) at least one of the portion of the outer surface of the valve cartridge and the inner surface of the sleeve comprises a recess in which the first annular seal is seated. 3. The neck assembly of claim 1, wherein the shoulder of the valve cartridge comprises a recess in which the second annular seal is seated. 4. The neck assembly of claim 1, wherein the first and second annular seals are made from a resiliently flexible material. 5. The neck assembly of claim 1, wherein the housing further comprises at least one sleeve connector at the first end portion of the sleeve, and the valve cartridge further comprises at least one valve cartridge connector at the first end portion of the valve cartridge, and the valve cartridge connector is engaged with the sleeve connector to secure the valve cartridge to the housing. 6. The neck assembly of claim 1, wherein the sleeve is metal, and the encapsulation ring is laser welded to the sleeve. 7. The neck assembly of claim 1, wherein the second end portion of the valve cartridge extends out of the second end portion of the sleeve and is positioned within the fuel system component. 8. The neck assembly of claim 7, wherein the second end portion of the valve cartridge has a valve assembly mounted thereto. 9. The neck assembly of claim 1, wherein the second end portion of the valve cartridge includes a valve. 10. The neck assembly of claim 9, wherein the valve is selected from the group consisting of a rollover valve, a check valve, a fill limit vent valve, and a grade vent valve. 11. A neck assembly of a fuel system component comprising: a) a housing comprising (i) a cylindrical sleeve that extends from an exterior surface of the fuel system component having a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion, (ii) an encapsulation ring extending outwardly from the second end portion of the sleeve and encapsulated within a wall of the fuel system component to thereby attach the housing thereto, and (iii) at least one sleeve connector at the first end portion of the sleeve, wherein the sleeve connector comprises at least one aperture formed through the first end portion of the sleeve; andb) a valve cartridge at least partially received within the sleeve, the valve cartridge defining a conduit for fuel flow and comprising (i) a first end portion positioned exterior to the fuel system component and a longitudinally opposed second end portion, and (ii) at least one valve cartridge connector at the first end portion of the valve cartridge,wherein the valve cartridge comprises a lip having a first portion extending laterally radially outwardly from the first end portion of the valve cartridge and a second portion extending axially towards the second end portion of the valve cartridge, the lip defining a slot in which the first end portion of the sleeve is received and wherein the valve cartridge connector comprises at least one protrusion extending inwardly from the second portion of the lip that is received within the aperture of the sleeve connector to secure the valve cartridge within the housing, wherein the lip is resiliently flexible to allow the protrusion to snap into the aperture and to allow for the protrusion to be removed from the aperture. 12. The neck assembly of claim 11, wherein the at least one sleeve connector is integral with the sleeve, and the at least one valve cartridge connector is integral with the valve cartridge. 13. The neck assembly of claim 11, wherein the valve cartridge is removably secured within the housing. 14. A method for securing a neck assembly to a fuel system component, the method comprising: a) providing a housing comprising i) a sleeve having a first end portion and a longitudinally opposed second end portion, and (ii) an encapsulation ring extending radially outwardly from the second end portion of the sleeve, wherein the sleeve and encapsulation ring are integrally formed or assembled together prior to the step of encapsulating;b) encapsulating the encapsulation ring in a wall of the fuel system component while blow-molding the fuel system component to thereby anchor the housing thereto, whereby the sleeve extends outwards from a surface of the fuel system component with the first end portion of the sleeve being positioned exterior to the fuel system component;c) providing a valve cartridge defining a conduit for fuel flow and comprising a first end portion and a longitudinally opposed second end portion, wherein a first separate annular seal and a second separate annular seal are mounted to the valve cartridge;d) inserting the valve cartridge into the sleeve from the first end portion of the sleeve towards the second end portion, whereby the first end portion of the valve cartridge is positioned exterior to the wall of the fuel system component and the second annular seal is in contact with the wall of the fuel system component; ande) securing the valve cartridge to the sleeve to include compressing the first annular seal between the valve cartridge and the sleeve and compressing the second annular seal between the valve cartridge and the wall of the fuel system component, such that a seal is formed between the valve cartridge and each of the sleeve and the wall of the fuel system component. 15. The method of claim 14 wherein: a) the first end portion of the sleeve comprises at least one tab;b) the valve cartridge comprises an outer surface and the first end portion of the valve cartridge comprises at least one recess formed in the outer surface; andc) step (e) comprises crimping the at least one tab into the at least one recess. 16. The method of claim 14, wherein the valve cartridge comprises a lip having a first portion extending radially outwardly from the first end portion of the valve cartridge and a second portion extending axially towards the second end portion of the valve cartridge, the lip defining a slot, and the method further comprises inserting the first end portion of the sleeve into the slot while inserting the valve cartridge into the sleeve. 17. The method of claim 16, wherein at least one aperture is formed through the first end portion of the sleeve, at least one protrusion extends inwardly from the second portion of the lip, and step (e) comprises snapping the protrusion into the aperture while inserting the valve cartridge into the sleeve. 18. The method of claim 14, wherein the sleeve is metal, the encapsulation ring is metal, and step (a) comprises laser welding the encapsulation ring to the second end portion of the sleeve such that the sleeve and encapsulation ring are assembled together prior to the step of encapsulating. 19. The method of claim 14, further comprising mounting a valve assembly to the second end portion of the conduit of the valve cartridge prior to inserting the valve cartridge into the sleeve.