Marine A0 Fireproof Porthole

 Marine Porthole

  • Marine A0 Fireproof Porthole
Marine A0 Fireproof Porthole

Marine A0 Fireproof Porthole

  • Product description: Marine A0 Fireproof Porthole e is installed in the shipboard plates, superstructure and deck outdoor wall, on the hull of ship, can ensure the hull tightness.
  • INQUIRY

Marine A0 Fireproof Porthole

Porthole is installed in the shipboard plates, superstructure and deck outdoor wall, on the hull of ship, can ensure the hull tightness, round window with anti-storm performance. Ship portholes reason are designed into round, according to the principle of mechanics, circular than other shapes more under pressure, shear stress.

The average temperature of the back side of fire is not more than 140C, the back of any point of the temperature rise does not exceed 180C.

A0 class fire resistant separation to prevent smoke and flame through, there is a high temperature density requirements.


D D1 D2 D3 D4 α deadlight frame
glass thickness
opening 
size
bolt 
qty
200 222 204 250 280 45° 2 3 10 253 12
250 272 254 305 330 45° 2 3 10 308 14
300 322 304 360 380 31° 3 3 12 363 16
350 372 354 410 430 32° 3 3 12 413 18
400 422 404 460 480 31° 3 3 12 463 20