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CB/T 3728 A URS26 Weathertight Small Steel Hatch Cover with Butterfly Nut
Description:
CB/T 3728-2011 type A weathertight small steel hatch cover is fitted with butterfly nut and is suitable for applying a torque convenient for tightness, by only one man without the help of any tools. For bigger size hatches, balance hammer will be fitted at the hinge side to assist crew open and close the heavy hatch easily. Hose test with 2 bar water pressure at the distance of 1.5m will be carried out after installation onboard.
Main Technical Specification:
Main Technical Parameters:
| Nominal Size | Opening Clear Size L1 XB1 X R1 | Cover Size L2 X B2 | Cover Thickness t | Hatch Coaming | Butterfly Clip | Weight (kg) Exclusive coaming | ||
| t0 | H | Dia. | Quantity | |||||
| 450×630 | 420×600×100 | 508×688 | 4 | 4,6 | 100 150 200 250 450 600 | M16 | 4 | 24.4 |
| 512×692 | 6 | 6,8 | 31.1 | |||||
| 516×696 | 8 | 8,11 | 37.7 | |||||
| 530×530 | 500×500×100 | 588×588 | 4 | 4,6 | 24.2 | |||
| 592×592 | 6 | 6,8 | 30.8 | |||||
| 596×596 | 8 | 8,11 | 37.4 | |||||
| 630×630 | 600×600×100 | 682×688 | 4 | 4,6 | M20 | 31 | ||
| 692×692 | 6 | 6,8 | 39.8 | |||||
| 696×696 | 8 | 8,11 | 48.5 | |||||
| 630×830 | 600×800×100 | 688×888 | 4 | 4,6 | 37.4 | |||
| 692×892 | 6 | 6,8 | 48.5 | |||||
| 696×896 | 8 | 8,11 | 59.7 | |||||
| 830×830 | 800×800×100 | 888×888 | 4 | 4,6 | 6 | 47.1 | ||
| 892×892 | 6 | 6,8 | 61.2 | |||||
| 896×896 | 8(注3) | 8,11 | 75.3 | |||||
| 830×1230 | 800×1200×100 | 888×1288 | 4 | 4,6 | 8 | 65.2 | ||
| 892×1292 | 6 | 6,8 | 85.3 | |||||
| 896×1296 | 8 | 8,11 | 800 | 175.2 | ||||
| 1030×1030 | 1000×1000×100 | 1092×1092 | 4 | 4,6 | 8 | 146.6 | ||
| 1096×1096 | 8 | 6,8 | 190.9 | |||||
| 1330×1330 | 1300×1300×100 | 1396×1396 | 8 | 8,11 | 800 | 8 | 331.3 | |
Drawing of CB/T 3728 A URS26 Weathertight Small Steel Hatch Cover with Butterfly Nut Marine Outfitting