Marine Manhole Cover

Our Marine Manhole Cover is used for manhole on the oil tanks, water tanks, voil tanks and other tanks on various shipes. It is fixed on the falt positions on the hold bottom, deck and bulkhead.There are Type A,B,C & D. The shape can be round, oval, square.

Manhole Cover Type D is Sunk Manhole Cover. And in GB11628-89, it is Type E.

Parameters:

Model	Nominal Size	B	B1	B2	L	L1	L2	S	Bolt		Weight
	LxB								Diamter	Quantity	kgs
A	450*350	350	370	470	450	470	570	4	M20	16	23.2
								6			30.8
								8			36.9
								10			45.8
	600*400	400	420	520	600	630	720	6		20	48.8
								8			59.2
								10			69.3
								12			79.6
	800*600	600	620	720	800	820	920	8		26	52.4
								10			65.8
								12			78.2
								14			90.2