Round Steel Pressure Proof Watertight Hatch Cover

Round Steel Pressure Proof Watertight  Hatch Cover:

Standard:CB/T3842-2000

The 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

The use pressure is 0.2Mpa.

Watertight test requirement: The cover must be closed, and maintain 15 minutes after 0.3Mpa water is put into the test tank.

 

 

Main Material:

Cover-Steel

Coaming-Steel

Handwheel-Steel, Stainless Steel or Steel with Galv

Spring-Spring Steel

 

Main Size List(mm):

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

 

 

 

 

 

 

 

 

 

 

 

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