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Type AB Circular Tube Gooseneck Ventilator with Direct Bending Neck CB/T 4220-2013

Brand: DEYUAN MARINE
Type: Circular tube,Direct bending neck
Standard: CB/T 296-99&CB/T 4220-13
Model: Type AB
Application: Tanks/Deck ventilating
Nominal Diameter: 100~300mm
Material: seamless steel tube or hull-structural steel
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Product Description

Type AB Circular Tube Gooseneck Ventilator with Direct Bending Neck 


This ventilator looks like a goose's neck, so called gooseneck ventilator, it is usually used on oil tank or exposed deck.


Standards for such marine ventilators here are CB/T 4220-2013 and its previous version CB/T 296-1999,they are equal to other standards from other countries.


Type AB is circular tube with direct bending neck, is made of marine grade or seamless steel, to ensure reliability and durability.


CBT 4220-2013 CBT 296-1999 TYPE AB CIRCULAR GOOSENECK VENTILATOR 3


Data sheet of Type AB circular gooseneck ventilators:

DN Vent Pipe Cover Packing Pressure Plate Head Screw Turnbuckle Weight
kg
D t D1 t1 D1 D2 D2 D3 D4
100 108 4 118 6 118 48 78 63 4 1 17.7
114 6 124 8 124 54 84 69 27.4
8 31.5
150 159 4.5 170 6 170 100 130 115 6 3 31.9
168 6 178 8 178 108 138 123 40.1
8.5 48.6
200 203 6 213 6 213 143 173 158 8 47.4
219 229 8 229 159 189 174 58.2
8.5 68.9
250 245 6.5 255 6 255 185 215 200 10 67.6
273 283 8 283 213 243 228 77.7
8.5 84.1
300 299 7.5 309 6 309 239 269 254 12 86.6
325 335 8 335 265 295 280 90.2
9 93.5
The weight is based on the height H as 900mm, does not include Weight of H1






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