China Good Price Marine Watertight Boat Manhole 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