Marine Aluminum Manhole Cover

Marine Aluminum Manhole Cover

Introduction

Marine aluminum manhole cover is a convenient access port for maintenance personnel,Some liquid tanks on ships and some compartments that are not normally accessed by personnel are provided with manhole covers for access by construction and maintenance personnel. The htach cover is fixed by many bolts and nuts, can be opened by turning the nuts.

Specifications of Marine Aluminum 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	28.9
					6			33.8
					8			37.2
					10			41.2
600*400	620	720	420	520	6		20	49.5
					8			55.6
					10			61.2
					12			67.6
800*600	820	920	620	720	8		26	67.2
					10			75.2
					12			82.8
					14			89.9
800*400	830	930	430	530	12		24	56.8
					14			63.2
					16			69.2
					18			76.2