Manhole Cover

CB/T 4392-2014
USED FOR THE SHIP WATERTIGHT AND OIL TIGHT MANHOLE COVER.
Type and nominal size of manhole cover
Type Name Nominal size
AA Raised oval shape manhole cover 450×350、500×400、600×400 600×450、800×600
AB Raised elliptic shape manhole cover 800×400
BA Ring pad oval shape manhole cover 450×350、500×400、600×400、 600×450、800×600
BB Ring pad elliptic shape manhole cover 800×400
BC Ring pad square shape manhole cover 600×600
BD Ring pad circular shape manhole cover Φ450、Φ600
CA Flush oval shape manhole cover with coaming shield 450×350、600×400、600×450 800×600
CB Flush elliptic shape manhole cover with coaming shield 800×400
CC Flush oval shape manhole cover with flat shield 450×350、600×400、600×450 800×600
CD Flush elliptic shape manhole cover with flat shield 800×400
DA Flush oval shape manhole cover without shield 450×350、600×400、600×450 800×600
DB Flush elliptic shape manhole cover without shield 800×400
EA Hinge oval shape manhole cover 450×350、500×400、600×400 600×450、800×600
EB Hinge elliptic shape manhole cover 800×400
hand cover

Hand Cover

raised manhole cover

Raised Manhole Cover

ring pad (hinge) manhole cover

Ring Pad (Hinge) Manhole Cover

ring pad manhole cover

Ring Pad Manhole Cover