Quick Acting Watertight Steel hatch cover is with the spring-balance device and the central clip device, so it is watertight, and can be opened or closed quickly and easily.There are two types, A type is round, B type is square. It is used as the quick entry or exit which has the watertight demand on various ships
Use pressure: 0.2Mpa.
Standard:CB/T3842-2000d
Main Material: Steel
Watertight test requirement: The cover must be closed, and maintain 15 minutes after 0.3Mpa water is put into the test tank.
The Coaming H can be changed, here in the form is the minimum.
Specification
| Clear Size | Cut Out Size | Coaming Inner Diameter | Cover Outside Diameter | Cover Thickness | Coaming | Center Distance | Weight |
| D | D1 | D2 | D3 | t | t1 | H | B | kgs |
| 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 |
We offers two types of marine covers: hatch cover and manhole cover
**Hatch Cover:
Steel Small Size Hatch Cover
Rotating Oil Tight Hatch Cover
Steel Weathertight Hatch Cover
Aluminum Weathertight Hatch Cover
Steel Watertight Hatch Cover
Aluminum Watertight Hatch Cover
Pressure Proof Manhole Cover & Hatch Cover
Quick Acting Watertight Hatch Cover
Hatch Cover for Suez Canal Light
Air Hatch Cover
Fireproof Hatch Cover
**Manhole Cove:
Type A Manhole Cover with Coaming--nominal size:600*400, cover plate thichness10 , CB/T19-2001
Typ B1 Flat Type Manhole Cover---- nominal size:600*400, cover plate thichness10 , CB/T19-2001
model C1 Embedded Type Manhole Cover with Shield--- nominal size:600*400, cover plate thichness12 , CB/T19-2001
Model D1 Long Circular Sunk Type Manhole Cover with shield---nominal size:600*400, cover plate thichness14 , CB/T19-2001
Model A Stud Mounted Manhole Cover, Model A Ballast liquid tank manhole cover with check hole wihc size 600*400 6CB/T3981-2008
