Marine Cast Iron Air Vent Head JIS -KS91A-121(DN100-DN450)

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China Marine Cast Iron Air Vent Head JIS -KS91A-121(DN100-DN450):

Air Vent Head also can be called as air pipe head, is used as the ventilation of the oil tank or water tank on the vessel.

Flange size as per JIS B2220 - 5K

* The flange size also can be manufactured according to 10K, 16K.

Main Material:

S/N Name Material S/N Name Material
1 Hex Bolt STS304 8 Screen Cover SS400
2 Cover SS400 9 Float Disc STS304
3 Packing NBR 10 Hex Bolt STS304
4 Body FC200,FCD450 11 Packing NBR
5 Hex Bolt STS304 12 Spring Washer STS304
6 Rubber Ring NBR 13 Guide Bolt STS304
7 Wire Screen STS304


Main Size List(mm):

Dimension (mm)
Weight (kgs)
DN D2 D3 HT H1 T N-d1 A A3 R
100 165 200 220 160 16 8-19 245 155 250 23
125 200 235 250 180 16 8-19 270 180 288 34
150 230 265 285 208 18 8-19 316 216 330 47
200 280 320 365 269 20 8-23 394 274 432 72
250 345 385 430 314 22 12-23 485 325 546 120
300 390 430 530 367 22 12-23 550 384 616 178
350 435 480 570 415 24 12-23 661 425 714 196
400 495 540 640 475 24 12-23 703 457 749 235
450 555 605 713 522 24 12-23 816 510 836 298

Remarks: The flange size in the above list is JIS 5K.

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