Zhongyuan Ship Machinery Manufacture (Group) Co., Ltd
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GB 3887 Type D Marine Mushroom Ventilator
Description:
GB 3887-83 type D marine mushroom ventilator is used for ventilate big spaces as it has larger diameter. It is always kept open normally fitted above position 2 of the freeboard deck. and can be fitted with fan by flange connection. It can be used for natural ventilator. It is fitted with stainless mesh to prevent rat and bugs enter into spaces being ventilator.
Main Technical Specifications:
Main Technical Parameters:
| Nominal diameter DN | D | D1 | H | H1 | H2 | t for Seagoing Vessel | t for Inland waterway ship | Weight for Seagoing Vessel | Weight for Inland waterway ship |
| 400 | 400 | 710 | 350 | 105 | 210 | 6 | 5 | 81 | 73.8 |
| 450 | 450 | 800 | 375 | 105 | 210 | 6 | 5 | 98.7 | 96.8 |
| 500 | 500 | 890 | 405 | 105 | 210 | 8 | 5 | 122 | 114.6 |
| 550 | 550 | 980 | 435 | 105 | 250 | 8 | 5 | 147 | 140.5 |
| 600 | 600 | 1060 | 470 | 120 | 250 | 8 | 6 | 169.4 | 162.3 |
| 700 | 700 | 1240 | 520 | 120 | 250 | 8 | 6 | 217.5 | 209 |
| 800 | 800 | 1410 | 560 | 140 | 300 | 8 | 6 | 299 | 287.3 |
| 900 | 900 | 1580 | 600 | 140 | 300 | 8 | 6 | 334 | 320 |
| 1000 | 1000 | 1760 | 640 | 140 | 300 | 8 | 8 | 401.6 | 401.6 |
| 1100 | 1100 | 1930 | 680 | 140 | 300 | 8 | 8 | 496.4 | 496.4 |
| 1200 | 1200 | 2100 | 720 | 140 | 300 | 8 | 8 | 592 | 592 |
