Model B Butterfly Clip Mounted Manhole Cover

BALLAST LIQUID TANK MANHOLE COVER WITH CHECK HOLE

CB/T 3981-2008

 

Model B Butterfly Clip Mounted Manhole Cover

Model	Clear size	L1	B1	L2	B2	T	Stud (Substance)		Stud (Check hole)		Weight(kg)
	L*B mm						Diameter	Quantity	Diameter	Quantity
A	600*400	720	520	620	420	6	M20	20	M16	8	68.4
						8					75.3
						10					81.8
						12		26			89.1
	800*600	920	720	820	620	8					86.9
						10					95.8
						12					104.3
						14					112.2
						16					121.2
						18					130.1
						20					138.5
B	640*400	720	520	620	420	6					62.6
						8					71.9
						10					80.7
						12					90.3
	800*600	920	720	820	620	8					83.5
						10					94.7
						12					105.5
						14					115.9
						16					126.1
						18					169.5
						20					146.8

Marked sample: Model A Ballast liquid tank manhole cover with check hole which size 600*400

Marked as: Manhole cover  6CB/T3981-2008  A600*400-10