Marine Rectangular Porthole
Introduction of Marine Rectangular Porthole
The rectangular portholes for ships are designed for ships, and the windows can be electrically heated glass to prevent fogging and blocking the view. The thickness of the glass can also be selected, and the window frame is made of steel, aluminum, copper, etc. It has the characteristics of corrosion resistance and weather resistance.
Specifications of Marine Rectangular Porthole
N
ordinary
with safety glass
P
fire Protection
for fire class A or B
H
heating
with electrical heating glass in inccordance of ISO3434
Opening type
opening direction
installation
type code
nominal size
bolted type
welted type
E
F
opening
inward "I"
side hinge
left(L)
B
-
ILB
1~6
1~6
-
W
ILW
right(R
B
-
IRB
-
W
IRW
up hinge(T)
B
-
ITB
4~8
4~9
-
W
ITW
outward "O"
side hinge
left(L)
B
-
OLB
1~6
1~6
-
W
OLW
right(R
B
-
ORB
-
W
ORW
up hinge(T)
B
-
OTB
4~8
4~9
-
W
OTW
fixed
-
B
-
NOB
1~8
1~9
-
W
NOW
rectangular window
glass thickness
series
type
nominal size code
1
2
3
4
5
6
7
8
9
N
E
10
-15
10
-15
12
-19
12
-19
15
-
15
-
19
-
19
-
-
-
F
8
-12
8
-12
8
-12
8
-12
10
-15
10
-15
12
-19
12
-19
15
-
P
E
ISO 5797-1
F
H
E
ISO 3434
F
Picture of Marine Rectangular Porthole
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