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Hide 1 Steel

The most commonly used air vent head for ships.

Application area/function:

The Hide 1 Steel is a welded valve for demanding conditions made for installation outside on-deck. Used to ventilate all tanks on board for cargo, ballast water, wastewater, fresh water, lubricating oil, fuel oil, etc. Prevents water from entering the tanks.

HIDE valves are approved by all the most common classification societies

For pressure drop and flow rate, please contact us.


  • Flame-/Bug-/Rat- screen
  • Heating/Winterization
  • Additional mud chamber preventing mud from entering the valve (See Mud Chamber)
  • Mounting alternatives: Flanged, threaded or weldment
  • Painting
  • Can be ordered in galvanized steel, stainless steel or higher Duplex steel qualities

Performance, weight and size:

Download product sheet

Technical documents