Marine Steel Protruding Manhole Cover

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Marine Steel Protruding Manhole Cover

Introduction

At present, there are 3 kinds of structures commonly used in shipbuilding industry: round, oblong and oval. The most commonly used is oblong manhole cover. Protruding manhole cover has a higher enclosure to prevent sewage or garbage from entering the compartment. Commonly used in engine compartments, boiler compartments and other places where water is likely to accumulate.

Specifications of Marine Steel Protruding Manhole Cover

clear size L*B	L1	L2	B1	B2	S	Dia of fasteners	Qty of fasteners	weight kg
450*350	470	570	370	470	4	M20	16	23.2
					6			30.8
					8			36.9
					10			45.8
600*400	620	720	420	520	6		20	48.8
					8			59.2
					10			69.3
					12			79.6
800*600	820	920	620	720	8		26	52.4
					10			65.8
					12			78.2
					14			90.2