Marine Steel Flush Manhole Cover
Introduction
Marine manhole cover is a widely installed in the ship's cabin passage for people to enter and exit the opening and closing device. The manhole cover can be divided into protruding type and flush type according to whether it is higher than the surface of the opening after installation.
Specifications of Marine Steel Flush Manhole Cover
clear size L*B
L1
L2
B1
B2
S
Dia of fasteners
Qty of fasteners
weight kg
450*350
470
570
370
470
4
M20
16
28.9
6
33.8
8
37.2
10
41.2
600*400
620
720
420
520
6
20
49.5
8
55.6
10
61.2
12
67.6
800*600
820
920
620
720
8
26
67.2
10
75.2
12
82.8
14
89.9
800*400
830
930
430
530
12
24
56.8
14
63.2
16
69.2
18
76.2