The first photo shows an air/water accumulator vessel on the left hand side, with the lamp box and lights that illustrate the water level in the vessel. The lamp box also contains a contact type pressure gauge to show the accumulator pressure. To the right are shown two air back-up vessels, with a joint bottle air isolating valve shown attached to the centre vessel.
The second photo shows an H3 hydraulic pump in the background with the accumulator control panel in the foreground.
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