Abstract: A pneumatic cargo stabilization system includes a first line configured to be coupled to a dunnage bag and configured to selectively convey a flow of a gas from a source to the dunnage bag, a second line in fluid communication with the gas in the dunnage bag, and a valve coupled in series with the first line, between the source and the dunnage bag. The valve includes a body that defines pressure supply port, a container port, and an exhaust port, a diaphragm assembly, and a spring member positioned to apply a biasing force to a first side of the diaphragm assembly, the second line conveying a feedback to a second side of the diaphragm assembly that opposes the biasing force.

Abstract: A pneumatic system includes a first line configured to be coupled to a container, and to convey a flow of gas from a source to the container, a second line in communication with gas in the container, a valve coupled in series with the first line, between the source and the container, and a spring member. The valve includes a body having a first port, a second port, and an exhaust port, and the valve includes a moveable element in communication with the second line and is configured to control the flow of gas through the first line as a function of the pressure of the gas within the container. The spring member is positioned to apply a biasing force to a first side of the moveable element, and the second line provides a feedback to a second side of the moveable element.

Abstract: A pneumatic system includes a first line, a second line, and a valve. The first line is configured to be connected to a container, and to convey a flow of gas from a source to the container. The second line is arranged co-axially with the first line and is in communication with gas in the container. The valve is connected in series with the first line, between the source and the container. Furthermore, the valve is in communication with the second line and is configured to control the flow of gas through the first line as a function of a characteristic of the gas in the container, as communicated by the second line.

Abstract: A pneumatic system for use with dunnage bags includes a manifold configured to communicate pressurized air from a source and a station. The station includes a conduit coupled to the manifold and having an outlet configured to communicate the pressurized air with a dunnage bag. The station further includes a valve coupled to the conduit. The valve is biased closed and configured to open at a pressure corresponding to a predetermined fill pressure of the dunnage bag.

Abstract: A pneumatic system includes a first line, a second line, and a valve. The first line is configured to be connected to a container, and to convey a flow of gas from a source to the container. The second line is arranged co-axially with the first line and is in communication with gas in the container. The valve is connected in series with the first line, between the source and the container. Furthermore, the valve is in communication with the second line and is configured to control the flow of gas through the first line as a function of a characteristic of the gas in the container, as communicated by the second line.