Low emission receptacles
A receptacle includes a main body, a stem, a poppet connected to the stem and defining an inner check void, a spring configured to bias the poppet to a closed poppet position, and a check assembly at least partially disposed in the inner check void. The check assembly includes a check and a check spring. The check is configured to move relative to the main body. The check spring is configured to bias the check toward a closed check position. The check has a first surface area and the poppet has a second surface area that is larger than the first surface area of the poppet such that a fluid force causes the check to move to an open check position before causing the poppet to move to an open poppet position.
1. A receptacle comprising:
a main body;
a first stem;
a first poppet connected to the first stem;
a valve seat disposed in the main body;
a first spring configured to bias the first poppet to a first closed position;
a second stem slidingly engaged to the first poppet and the first stem;
a second poppet connected to the second stem, the second poppet defining a central void and configured to sealingly engage the main body;
a second spring configured to bias the second poppet to a second closed position; and
a check assembly at least partially disposed in the central void of the second poppet, the check assembly comprising a check and a check spring, wherein the check is moveable relative to the main body, wherein the check spring is configured to bias the check to a closed check position.
2. The receptacle of claim 1 , further comprising a spring seat disposed in the main body.
3. The receptacle of claim 2 , wherein the first stem is slidably engaged with the spring seat.
4. The receptacle of claim 2 , wherein the first spring is disposed between the spring seat and the first poppet.
5. The receptacle of claim 2 , wherein the spring seat defines a second central void.
6. The receptacle of claim 5 , wherein the first stem is at least partially disposed in the second central void.
7. The receptacle of claim 5 , wherein the second poppet includes an inner sealing surface adjacent the central void.
8. The receptacle of claim 7 , wherein the check is configured to engage the inner sealing surface in the closed check position.
9. A receptacle of claim 1 , wherein the first stem and the first poppet define a longitudinal void.
10. The receptacle of claim 9 , wherein the second stem is at least partially disposed in the longitudinal void.
11. The receptacle of claim 1 , wherein the second spring is disposed between the valve seat and the second poppet.