1. Overpressure/underpressure safety unit, up to 20 mbar, heatable
The overpressure/underpressure safety unit is a safety device that protects the roof system from damage if the pressure in the gas space is excessively high or low. The overpressure/underpressure safety unit is mounted on the outside of the container wall. The pressure safety unit uses immersion cups with a liquid receiver. The fill level of the liquid receivers is indicated by means of a check tube or inspection window.
2. Gas level measurement (hydrostatic and mechanical)
Hydrostatic fill level indication with signal:
Hydrostatic fill level measurement is used to determine the height of the gas storage membrane at a specific point. The measuring principle of determining the height is based on hydraulic transmission. Explosion-protected with signal output (analogue 4 to 20 mA) and including VA cover.
Number of containers/double-membrane roof systems: 3
Container diameter/variable gas storage volume:
3 x dia. 20.17 m/approx. 550 m³
Gas operating pressure: 5 mbar