Quick acting watertight hatch cover

CB/T3842-2000

Type of hatch cover
Type Name Structure characterstic Allowable pressure
A Circular rapid opening and closing water tight hatch Φ600、Φ650、Φ700、 Φ750、Φ800 0.2
B Square quick opening and closing water tight hatch 600*600、700*700、 800*800

Type A hatch cover

Type A hatch cover
Clear size of opening D Hole size D1 Coaming internal D. D2 Cover Outside D. The Thickness of the plate Coaming Center Distance B Weight kg
Thickness t1 Height H
600 640 670 720 12 12 200 473 245
650 690 720 770 498 266
700 740 770 820 523 285
750 790 820 870 548 306
800 840 870 920 573 328
Note: The height of coaming H can be determined according to requirements,the minimum size of the table is H.

Type B hatch cover

Type B hatch cover
Type B hatch cover 2
Clear size of opening A*A Hole size A1*A1 Coaming internal size A2*A2 Cover Outside size A3*A3 The Thickness of the plate t Coaming Center Distance B Weight kg
Thickness t1 Height H
600*600 640*640 670*670 720*720 12 12 200 510 310
700*700 740*740 770*770 820*820 560 340
800*800 840*840 870*870 920*920 610 380
Note: The height of coaming H can be determined according to requirements,the minimum size of the table is H.