Marine Steel Hatch with Four Handles

Marine Steel Hatch with Four Handles

Note:

1)weight in chart does n’t include the weight of coaming

2)height and thickness of coaming are decided by buyer

Requirements:

1. The main material is as following

Name of spare parts	material
Coaming, cover plate	Marine structure steel
Coaming, cover plate	Carbon structure steel
Lock catch,handle,hinge plate,stopper, Eye pads	Carbon structure steel
Handle , axle,axle sleeve	high quality Carbon structure steel
Bolt.Plug, hinge pin	stainless steel
Bolt.Plug, hinge pin	high quality Carbon structure steel
Nut,bush,pulley	lead brass
Nut,bush,pulley	Normal brass
Double twist spring	Spring catch brass
Sealing partss	Ageing resistance rubber

2. The hatches don’t have burr,sharp edge.

3. The hatches will carry out water tight test, and no leakage after test.

4. After production, all hatches will be painted with anti-corrosive primer.

5. Ageing resistance rubber’ breaking tenacity is more than 14.7MPa, aging coefficient is more than 0.8, Shore hardness between30-40

TYPE	NAME	Architectural feature
A	Single opening and closing weathertight hatch cover	Airfoil nut clip buckle
B	Double opening and closing weathertight hatch cover	Wedge handle clip buckle
C	Quick opening and closing weathertight hatch cover	Rotating central handle clip buckle
D	Sunken weathertight hatch cover	Can fall wedge handle clip buckle
E	Single opening and closing hatch cover	Airfoil nut clip buckle
F	Double opening and closing hatch cover	Wedge handle clip buckle