Type E hatch cover

Nominal size L×B	Clear size of opening L1×B1×R	Cover size			Coaming size		Diameter of wing nut clip	Weight kg
		L2×B2	t	Stiffener	t0	H
450×530	420×600×100	508×688	4	——	4,6	100、 150、 200	M16	20.9
		512×692	6		6,8			27.6
530×530	500×500×100	588×588	4		4,6			20.7
		592×592	6		6,8			27.3
630×630	600×600×100	688×688	4		4,6		M20	26.3
		692×692	6		6,8			35.1
630×830	600×800×100	688×888	4	60×6	4,6			34.7
		692×892	6		6,8			45.6
830×830	800×800×100	888×888	4	80×6	4,6			42.1
		892×892	6		6,8			55.3
Note 1: The weight in the table does not include the weight of the coaming and the coaming stiffener. Note 2：Height and thickness of the coaming shall be determined by the selected person.