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GB MARINE VALVE

Marine Cast Steel Quick closing valve GB/T5744-1993

Marine Cast Steel Quick closing valve GB/T5744-1993:

1.Design standard:GB/T5744-1993.

2.End standard:GB/T2501&GB/T569.

3.End type:Flange.

4.PN:0.25Mpa.

5.DN:20mm-150mm.

6.Main material:

7.Application:Fuel oil and lubricant oil piping.

8.Function:Such valves are used for on-off duty and quick closing when necessary.

Chart 1 Fundamental dimensions of type AS&AQ&BS&BQ:

DN	Structure dimension						Thickness	Flange connection dimension					Bolt		Hand wheel		Lift range	Cylinder volume	Weight/kg
DN	L/mm		H/mm		L1/mm	L2/mm	Thickness	Flange connection dimension					Bolt		Hand wheel		Lift range	Cylinder volume	Weight/kg
mm	AS AQ	BS BQ	AS AQ	BS BQ	L1/mm	L2/mm	δ/mm	D/mm	D1/mm	D2/mm	b/mm	d₀/mm	n	Th.	D₀ /mm	S/mm	m	V/cm³	AS	AQ	BS	BQ
20	150	95	240	320	143	44	6	95	68	48	11	13	4	M12	80	8	7	27	5.8	6.7	6.2	7.1
25	160	100	242	325				105	73	56	12	13	4	M12	80	8	9		6.6	7.5	6.8	7.7
32	180	105	245	330				115	83	64	13	15	6	M14	100	9	9		7.1	8.0	7.0	7.9
40	200	115	274	365		48		125	93	74					120	11	12		10.1	11.0	9.6	10.5
50	230	125	283	381		49	7	135	103	84					140	12	15		11.6	12.5	12.6	13.5
65	290	145	325	437	155	58		155	123	104	14				140	12	19	58	18.7	20.0	16.7	18.0
80	310	155	350	466		58		170	138	118			8		160	14	23		23.7	25.0	22.7	24.0
100	350	175	375	500		62	8	190	158	138			8		180	14	30		31.8	33.0	27.8	29.0
125	400	200	400	540		68	9	215	183	164			10		200	17	36		37.8	39.0	33.8	35.0
150	480	225	430	580		75	10	240	208	190			12		225	19	45		47.8	49.0	38.8	40.0

Chart 2 Fundamental dimensions of type ASS&AQS&BSS&BQS:

DN	Structure dimension						Thickness	Flange connection dimension					Bolt		Hand wheel		Lift range	Cylinder volume	Weight/kg
DN	L/mm		H/mm		L1/mm	L2/mm	Thickness	Flange connection dimension					Bolt		Hand wheel		Lift range	Cylinder volume	Weight/kg
mm	ASS AQS	BSS BSQ	ASS AQS	BSS BQS	L1/mm	L2/mm	δ/mm	D/mm	D1/mm	D2/mm	b/mm	d₀/mm	n	Th.	D₀ /mm	S/mm	m	V/cm³	ASS	AQS	BSS	BQS
20	150	95	240	320	143	44	6	90	65	50	14	11	4	M10	80	8	7	27	6.8	7.6	7.2	8.0
25	160	100	242	325				100	75	60	14	11		M10	80	8	9		7.6	8.4	8.0	8.8
32	180	105	245	330				120	90	70	16	14		M12	100	9	9		9.2	10.0	9.0	9.8
40	200	115	274	365		48		130	100	80					120	11	12		12.2	13.0	11.8	12.6
50	230	125	283	381		49	7	140	110	90					140	12	15		14.9	15.7	15.9	16.7
65	290	145	325	437	155	58		160	130	110					140	12	19	58	21.5	22.7	19.5	20.7
80	310	155	350	466		58		190	150	128	18	18		M16	160	14	23		25.8	27.0	24.8	26.0
100	350	175	375	500		62	8	210	170	148	18				180	14	30		38.8	40.0	34.8	36.0
125	400	200	400	540		68	9	240	200	178	20		8		200	17	36		46.3	47.5	42.3	43.5
150	480	225	430	580		75	10	265	225	202	20		8		225	19	45		59.8	61.0	50.8