Circle Type Gooseneck Ventilation
Circle Type Gooseneck Ventilation is divided into AA type and AB type. With its unique gooseneck design, Circle Type Gooseneck Ventilation not only optimizes the ventilation effect, but also strengthens the structural solidity, which provides good ventilation for the working and living environment on board.
Overview
Application:
Circle type gooseneck ventilation serving the area surrounded by class A compartmentalized premises, galley, driving control room, etc., when the duct enters or leaves the limit of the area, the wall thickness of the duct shall be at least 3mm, the spanning length shall be at least 900mm and the duct shall be equipped with an automatic fire damper at the point close to the crossing of the limit.
Circle type gooseneck ventilation through the A class bulkhead or deck, if the net cross section of the duct exceeds 0.075m2, in addition to meet the above 4.3, should also be set up to stop the fire gate, the fire gate should be automatically acted upon, but also can be closed manually on both sides of the bulkhead or deck.
When the Circle type gooseneck ventilation passes through the B class bulkhead, if the net cross-section of the duct exceeds 0.02m2, it shall be equipped with a steel casing with a length of 900mm, and the casing is divided into 450mm on each side of the bulkhead.
Drawing:
DN | D | t | D1 | t1 | Type:AA | Type:AB |
100 | 108 | 4 | 118 | 6 | 20.7 | 17.7 |
114 | 6 | 124 | 8 | 31.9 | 27.4 | |
8 | 37.5 | 31.5 | ||||
150 | 159 | 4.5 | 170 | 6 | 38.9 | 31.9 |
168 | 6 | 178 | 8 | 48.9 | 40.1 | |
8 | 57.6 | 48.6 | ||||
200 | 203 | 6 | 213 | 6 | 59.4 | 47.4 |
219 | 6 | 229 | 8 | 61.6 | 58.2 | |
8 | 77.8 | 68.9 | ||||
250 | 245 | 6.5 | 255 | 6 | 75.6 | 67.6 |
273 | 6.5 | 283 | 8 | 91.2 | 77.7 | |
8 | 103.5 | 84.1 | ||||
300 | 299 | 7.5 | 309 | 6 | 104.3 | 86.6 |
325 | 7.5 | 335 | 8 | 113.8 | 90.2 | |
9 | 132.5 | 93.5 |
