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DN50 DN65 Cylindrical Float Type Marine Air Vent Head Type D,DS

Type D and Type DS 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 D are in standard CB/T 4196-2011 while Type DS are GB/T 2501-2010.

The optional range of nominal diameter is DN50~DN450, each model is also available in material of cast iron and nodular cast steel. The shape of DN 50 and DN 65 is different from DN80~450, here show the drawing of formmer type.

Type D DS --Cylindrical Float Type Marine Air Vent Head

Nominal DN	Structure Size			Flange Size					h	Weight
	H	L	t	b	D	D1	d0	n
50	170	160	6.5	16	135	103	15	6	17	6.32
					140	110	14	4		6.24
65	217	195		15	155	123	15	6	22	10.66
				16	160	130	14	4		10.37
80	215	240	7.5	15	170	138	15	8	27	22.60
				18	190	150	18	4		23.01
100	260	260	8	15		158	15	8		27.40
				18	210	170	18	4		29.34
125	312	340		15	215	183	15	10	44	33.70
				20	240	200	18	8		35.46
150	357	357	9	16		208	15	12	53	39.02
				20	265	225	18	8		40.94
200	431	430		16	295	264	15	12	60	63.70
				22	320	280	18	8		66.79
250	508	494	9	18	365	327	17	14	78	90.10
				24	375	335	18	12		93.32
300	627	592	10	19	430	386	21	14	85	110.40
				24	440	395	22	12		112.67
350	730	642		20	480	436	21	16	95	121.50
				26	490	445	22	12		128.02
400	830	725	11	21	530	486	21	16	120	240.34
				28	540	495	22	16		258.12
450	930	812	12	21	580	536	21	18	157	294.34
				28	595	550	22	16		312.78
Note: 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.

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.

If any interest pls do not hesitate to contact us.