China Marine Manhole Cover Type C Manhole Cover Boat Hatch Cover

Marine manhole cover is suitable for ship watertight and oil tight manhole cover, comply with ISO5894. We designed the marine manhole cover according to GB/T5746, CB/T19-2001 AND ISO3903.

Material of marine manhole cover includes: steel, aluminum, stainless steel as per clients' request.

Customized according to clients' special drawing.

Available Certificate: CCS, ABS, BV, LR, GL, DNV, RINA, etc.

Description:

1. Applied to various oil, water tanks, cofferdams and cabinet on ship

2. Smooth surface without cracks , corrosion resistance

3. Raised coamings available on many models

4. Flush screw-down models offer a smooth-surfaced manhole that prevents snagging

5. Neoprene Gasket material is UV resistant to prevent cracking

Specification:

Size of clear

L*B mm

L1

(mm)

B1

(mm)

R

(mm)

S

(mm)

BOLT

DAI(mm)

QUT

450*350

620

520

260

4

M20

20

6

8

10

500*400

670

570

285

6

20

8

10

12

600*400

770

570

285

8

24

10

12

14

600*450

770

620

310

8

24

10

12

14

16