Selectable control valves and mattress systems incorporating the same are disclosed. In one embodiment, an inflatable mattress system includes a pump, a selectable control valve in fluid communication with the pump, and a mattress pad having a plurality of inflatable chambers that are in fluid communication with the selectable control valve. The selectable control valve includes a valve case having an inlet port and a plurality of supply ports, a stepper motor having a motor body that is coupled to the valve case, a rotating plate having a passage and coupled to the stepper motor, and a plurality of seal cartridges positioned within the valve case. The seal cartridges each include an engagement spring and a compliant seal, where the engagement spring maintains a load on the compliant seal such that the compliant seal forms a fluid tight seal with the rotating plate.

A control valve is provided, comprising a valve body having an inlet port extending along an inlet axis, first and second outlet ports extending along outlet axes substantially parallel to a single reference axis and substantially perpendicular to the inlet axis, first and second sealing ports associated, respectively, with the first and second outlet ports and each disposed in a fluid path between the inlet port and its respective outlet port, and first and second sealing members configured for independently and selectively opening and closing the first and second sealing ports, respectively. Each of the sealing ports extends along a sealing axis extending transverse to a plane being parallel to its respective outlet axis and the inlet axis, and forms, between a downstream end thereof and an upstream end of the inlet axis, an obtuse angle greater than 90.

Selectable control valves and mattress systems incorporating the same are disclosed. In one embodiment, an inflatable mattress system includes a pump, a selectable control valve in fluid communication with the pump, and a mattress pad having a plurality of inflatable chambers that are in fluid communication with the selectable control valve. The selectable control valve includes a valve case having an inlet port and a plurality of supply ports, a stepper motor having a motor body that is coupled to the valve case, a rotating plate having a passage and coupled to the stepper motor, and a plurality of seal cartridges positioned within the valve case. The seal cartridges each include an engagement spring and a compliant seal, where the engagement spring maintains a load on the compliant seal such that the compliant seal forms a fluid tight seal with the rotating plate.

A control valve is provided, comprising a valve body having an inlet port extending along an inlet axis, first and second outlet ports extending along outlet axes substantially parallel to a single reference axis and substantially perpendicular to the inlet axis, first and second sealing ports associated, respectively, with the first and second outlet ports and each disposed in a fluid path between the inlet port and its respective outlet port, and first and second sealing members configured for independently and selectively opening and closing the first and second sealing ports, respectively. Each of the sealing ports extends along a sealing axis extending transverse to a plane being parallel to its respective outlet axis and the inlet axis, and forms, between a downstream end thereof and an upstream end of the inlet axis, an obtuse angle greater than 90.