Manifold assembly
A manifold assembly used to control the flow of oxygen in an oxygen concentrator system The manifold assembly provides a series of internal pathways which receive a primary and secondary relief valves via external orifices. The manifold reduces the number of component connections and potential leak paths for control and monitoring of process media.
1. A manifold assembly to accommodate the flow of process media to and from a storage container, said manifold assembly comprising:
a manifold body having a plurality of orifices;
a plurality of pathways disposed within said body, each of said pathways associated with at least one of said orifices;
a primary relief valve assembly mounted within a first of said plurality of orifices, said relief valve assembly associated with a first one of said pathways within said manifold body;
a solenoid valve mounted in a second of said plurality of orifices associated with a second one of said pathways within said manifold body, said solenoid valve controlling the flow of media to said storage container; and
a secondary relief valve assembly mounted within a third of said plurality of orifices, said secondary relief valve assembly associated with a third one of said pathways within said manifold body; said secondary relief valve providing relief of said process media to said storage container via said solenoid valve.
2. The manifold assembly of claim 1 further comprising a check valve mounted within a fourth of said plurality of orifices connected to said second one of said pathways providing a path between said check valve and said solenoid valve, said check valve configured to prevent the flow of process media away from said solenoid valve.
3. The manifold assembly of claim 2 further comprising a fifth pathway connecting said solenoid valve to a process media bleed line.
4. The manifold assembly of claim 2 wherein said check valve is defined by a piston, disposed between a spring and a seal, and an inlet fitting connected to an inlet port.
5. The manifold assembly of claim 1 wherein said secondary relief valve assembly is defined by a seal disposed within said third one of said pathways within said manifold body, a piston disposed between said seal and a spring, a diffuser connected to an external vent and a spring chamber disposed between said diffuser and said piston and configured to house said spring.
6. The manifold assembly of claim 1 wherein said secondary valve assembly is in a normally closed position and configured to provide a relief path from said storage container at particular pressure levels.
7. The manifold assembly of claim 1 wherein said primary relief valve assembly is defined by a seal disposed within said first one of said pathways within said manifold body, a piston disposed between said seal and a spring, a spring chamber configured to house said spring and a fitting to accommodate an external vent port.
8. The manifold assembly of claim 1 further comprising a vent disposed between said storage container and said primary relief valve assembly, said vent configured to accommodate a pressure value of said process media associated with said storage container.
9. The manifold assembly of claim 1 further comprising a wiring harness connected to said solenoid valve, said wiring harness configured to accommodate power wires to supply power to said solenoid valve to open and close said solenoid valve.
10. The manifold assembly of claim 1 further comprising a fitting assembly connected between said storage container and said primary relief valve assembly.
11. The manifold assembly of claim 10 wherein said fitting assembly further comprises a channel which provides said connection between said storage container and said primary relief valve assembly.