Marine Outfitting Equipment A Type Aluminium Manhole Cover For Boat
Brief description:
Our company is specialized in the production of Marine manhole covers , and have A , B , C , D , E five models for customer choice , the product is mainly suitable for ship the watertight or oil tight manhole cover , and is not apply to the boiler and pressure vessel. Marine manhole covers , according to its shape can be divided into: the oval and round , the oval manhole covers are more widely used. According to its sealing can be divided into: oil and water tight , the difference between the two lies in the sealing gasket materials , oil should be oil resistant rubber , watertight should be resistant to sea water rubber (light).
Executive standard, National standard:GB11628-89
Main features:
1. High load rating and strength
2. Durable service life
3. Free design
4. Certificate CCS , ABS , BV , RINA , KR , LR , GL , DNV are available
Specification:
Dimention of A type manhole cover :
| Nominal size | L1 | L2 | L3 | B1 | B2 | B3 | S | Fastenings | Weight | |
| (kg) | ||||||||||
450*350 |
450 |
470 |
570 |
350 |
370 |
470 |
Dia | Q’ty | ||
| 4 | M24 | 20 | 7.3 | |||||||
| 6 | 9.7 | |||||||||
| 8 | 12.2 | |||||||||
| 10 | 14.6 | |||||||||
| 500*400 | 500 | 520 | 620 | 400 | ||||||
