Mushroom Ventilation
Marine mushroom vent is usually made of carbon steel, stainless steel 304 or stainless steel 316L, which is suitable for the design of vent on the open deck of ocean ships and platforms.
Overview
Application:
Construction engineering: as ventilation equipment, provide fresh air.
Tunnel: used for smoke exhaust and dust removal.
Basement: increase air circulation and improve air quality.
Outdoor deck of ship: used for natural and mechanical ventilation to prevent rainwater from entering the cabin.
Common defects of mushroom ventilation:
The straight ladder is badly rusted, and the supporting elbow plate on the top cap, enclosure plate, and bottom of the ventilating cylinder is badly rusted or even pierced.
Unclear marking of the handwheel switching direction, and the valve plate cover lifting indicator bar is invalid or missing.
The sealing coil of the weathertight cap is aged or missing, the valve plate is deformed and seriously rusted, and it is not possible to ensure that the seal is maintained with the top edge of the mushroom ventilation body; the insect-proof net is broken and damaged.
The pressure-filled oil cup that passes through the center of the top cap of the ventilating cylinder, the support bearing inside the mushroom ventilation body lacks lubricant for a long time, and the function of the oiling nozzle fails, resulting in that the handwheel is almost unable to rotate, and it is not possible to close the mushroom ventilation quickly.
