Gas flow management equipment for high pressure storage tanks

In situ gas flow management equipment disposed within a high pressure industrial gas storage tank wherein interior longitudinally extending thermal management equipment interconnected with an external heat exchanger is installed in the interior of the tank along the central axis thereof and includes a stem extending from one end of the thermal management equipment, a fixed receptacle at an end of the tank disposed in operative relationship with the stem such that longitudinal displacement and axial rotation between the stem and receptacle is permitted, and a gas flow control embedded within the receptacle regulating the flow of gas into and from the tank, the in situ device therein, the external heat exchanger, and means for refilling and depleting the tank. Single ended and dual ended examples are described.