Abstract: A device for shielding operation and maintenance areas comprises a frame (20) for attachment in a wall structure and one in the frame pivotably supported panel (2-5). The panel comprises two substantially plate like panel parts (5) attached to a common central member (1), and a device for pivoting the panel (1-5) between open and closed positions. The panel further comprises a top plate (2) and a bottom plate (3), between which the central member (1) and two side members (4) extend. The two panel parts (5) are release ably attached to a respective one of the side members (4), and the top 20 plate (2) and bottom plate (3) are pivotable within limits with respect to a substantially vertical axis in the area of the central member (1), said axis also substantially coinciding with the pivot axis of the panel (1-5) in the frame (20).

Abstract: A plant for storing and supplying compressed gas comprises a storage tank (1) for gas, at least one pressurization tank (2) for gas and a buffer tank (3) for a pressure support fluid to be filled into or evacuated from lower portions of the storage and pressurization tanks. The lower portions of the storage and pressurization tanks are communicating with the buffer tank via fluid flow lines (4, 5) to fill fluid during supplying from and pressurizing gas in the plant, and a flow line (7) for evacuating fluid during refilling of the pressurization tank.