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Hat Type Marine Air Vent Head Type A,AS CB 20037-2012 & CB/T 3594-1994

Brand: DEYUAN MARINE
Type: Hat Type
Model: Type A,Type AS
Nominal Size: DN50~DN250
Material: Cast iron or cast steel
Flange: CB4196-2011 or GB/T 2501-2010
Installed: Upper end of air pipe of oil tank or water tank
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Product Description

Hat Type Marine Air Vent Head Type A,AS CB 20037-2012 & CB/T 3594-1994


Type A and Type AS marine air pipe heads are designed, manufactured and inspected in accordance with the standard CB 20037-2012 or CB/T 3594-1944. They are suitable for oil and water tanks for various ships and offshore drilling platforms. The flanges of Type A are in standard CB/T 4196-2011 while Type AS are GB/T 2501-2010.

The optional range of nominal diameter is DN50~DN250, each model is also available in material of cast iron and cast steel.


The rich variety of modes makes our air pipe head meet most ship-related application scenarios, and the strict quality requirements make our products durable and worry-free.

CB20037-2012 CBT3594-1994 Type A AS --Hat Type Marine Air Vent Head1-DEYUAN MARINE

Nominal Overall Body
Cover Size Flange Size Weight(kg)
DN H H1 t d h b D D1 d0 n Cast Iron Cast Steel
50 110 88 6 128 76 16(13) 135 103 15 6 4.08 4.58
16(16) 140 110 14 4 4.17 4.69
65 120 93 150 80 15(14) 155 123 15 6 5.63 6.53
16(16) 160 130 14 4 5.73 6.64
80 140 103 180 90 15(14) 170 138 15 8 7.24 8.24
18(18) 190 150 18 4 7.27 8.70
100 160 123 7 200 105 15(14) 190 158 15 8 11.91 13.71
18(18) 210 170 18 4 12.50 14.30
150 175 133 8 280 120 16(14) 240 208 15 12 20.40 23.40
20(20) 265 225 18 8 22.4 25.40
200 205 153 350 130 16(15) 295 264 15 12 26.44 28.22
22(22) 320 280 18 8 26.93 28.35
250 250 183 420 140 18(16) 365 327 17 14 31.71 35.21
24(24) 375 335 18 12 36.00 39.50
Note1: Note 1: The upper value in the column of flange connection dimensions of the same nominal diameter is the connection size specified in GB/T 4196-2011, and the lower value is the connection size specified in GB/T 2501-2010.

Note 2: The value without brackets in column b of flange thickness is the thickness of cast iron flange, and the value in brackets is the thickness of cast steel flange.


If any interest pls do not hesitate to contact us.


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