GB/T 584-1999 Type A/AS Flanged Stop Valve | Marine Cast Steel Globe Valve

GB/T584-1999 Type A/AS Flanged Stop Valve

GB/T 584-1999 Type A/AS flanged stop valve is manufactured in strict compliance with Chinese national shipbuilding standards, featuring a cast steel body and flanged ends for reliable shut-off performance in marine applications. Equipped with a precision-machined disc and stem assembly, this valve delivers tight sealing and smooth operation, designed specifically for the demanding conditions of shipboard piping systems.

Overview

Application : Widely installed on various types of commercial vessels, cargo ships, tankers and offshore platforms for controlling seawater, freshwater, fuel oil and lubricating oil flow in marine piping systems. Also used in shipbuilding yards, marine engineering projects and port facilities where GB-standard marine valves are required for ship pipeline isolation and flow regulation.

Material Specification:

Parts Name	Material
Parts Name	Name	Marks
Body, Cover	Cast steel	ZG230-450
Disc	High-quality Carbon steel	Steel 25
Stem	Stainless steel	2Cr13
Disc seal ring	Stainless steel	H2Cr13

Technical Specification:

Model	Nominal Pressure PN (MPa)	Nominal Diameter DN (mm)	Available Medium
Type A	1.0	65 ~ 150	Fresh water, Lubricant oil, Fuel oil, steam of 300 °C and under.
	1.6	125 ~ 150
	2.5	20 ~ 150
	4.0	65 ~ 100	Fresh water, Lubricant oil, Fuel oil, steam of 400 °C and under.
	6.4	20 ~ 50
Type AS	1.0	200 ~ 300	Fresh water, Lubricant oil, Fuel oil, steam of 300 °C and under.
	1.6	100 ~ 250
	2.5	20 ~ 150
	4.0	65 ~ 100	Fresh water, Lubricant oil, Fuel oil, steam of 400 °C and under.
	6.4	20 ~ 50

Drawing:

Dimensions:

PN1.0、1.6、2.5MPa A Type Elementary Dimensions(Unit: mm

Nominal Pressure PN Mpa	Nominal Diameter DN	Frame dimension		Wall Thickness	Flange					Bolt		Hand wheel		Lift Range	Weight(kg)
Nominal Pressure PN Mpa		Frame dimension
1.0		L	H≈
		L	H≈	t	D	D₁	D₂	d₀	b	n	Th.	D₀	S	M	A Type
	65	290	310	6	155	123	104	15	14	6	M14	140	12	18	14.9
	80	310	345	7	170	138	118			8		160	14	24	19
	100	350	374	8	190	158	138			8		180	14	35	28.6
	125	400	426	8	215	183	164			10		200	17	44	38.2
	150	480	487	9	240	208	190			12		200	17	57	51.3
1.6	125	400	465	8	225	187	168	17	15	10	M16	250	22	44	45.4
1.6	150	480	524	9	255	217	196	17	15	12	M16	280	24	57	58.9
2.5	20	150	217	6	95	68	48	13	11	4	M12	80	8	7	4.5
	25	160	217		105	73	56	13	12	4	M12	80	8	7	5.1
	32	180	236		115	83	64	15	13	6	M14	100	9	9	6.9
	40	200	260	7	125	93	74					120	11	11	9.2
	50	230	288		135	103	84					140	12	14	12.9
	65	290	335		170	132	110	17	15	8	M16	160	14	18.8	18.9
	80	310	362		185	147	126		16	8		200	17	24	24.8
	100	350	417	8	205	167	146		16	10		250	22	35	34.9
	125	400	481	9	240	196	172	21	19	10	M20	280	24	44	52.2
	150	500	537	9	270	226	200	21	20	12	M20	320	27	57	68.5

N4.0, 6.4MPa A-type Dimensions (mm)

PN (MPa)	DN	Frame dimension		thickness	Flange								Bolts		Hand wheel		lift range	Weight (kg)
PN (MPa)	DN	L	H≈	thickness	D	D₁	D₂	D₃	D₄	F	d₀	b	n	Th.	D₀	S	lift range	Weight (kg)
4	65	310	409	8	175	137	118	110	94	3	17	18	8	M16	250	22	17	35.2
	80	350	436	9	190	152	130	121	105	3	17	18	8	M16	250	22	20	39.1
	100	400	466	9	225	181	157	150	128	4	21	21	10	M20	280	24	25	53.3
6.4	20	160	261	7	105	73	58	51	35	3	13	13	m	M12	100	9	7	7.7
	25	180	272		115	83	66	58	42		15	15		m	100	9	7	8.7
	32	200	304		125	93	74	66	50		15	17	6		120	11	9	10.3
	40	230	334		145	107	84	76	60		17	19		M16	160	14	11	17.7
	50	250	354	8	155	117	96	88	72		17	20		M16	180	14	13	22.3

PN1.0、1.6、2.5MPa AS type Elementary Dimensions(Unit:mm)

PN Mpa	DN	Frame dimension		thickness	Flange					Bolt		hand wheel		lift range	weight
PN Mpa	DN	L	H≈	thickness	D	D₁	D₂	d₀	b	n	Th.	D₀	S	m	weight
1	200	600	621	10.0	340	295	268	22	24	8	M20	360	27	68	109.0
	250	730	721	11.5	395	350	320		26	12		450	32	80	167.0
	300	850	821	13	445	400	370		26	12		500	36	100	225.0
1.6	100	350	417	8	220	180	158	18	22	8	M16	250	22	35	35.4
	125	400	465	9.0	250	210	184	18	22		M16	250	22	44	50.5
	150	480	524	9.0	285	240	212	22	24		M20	280	24	57	67.3
	175	540	573	10.0	315	270	242					360	27	60	92.1
	200	600	643	10.0	340	295	268			12		450	32	68	121.0
	250	730	744	11.5	405	355	320	26	26	12	M24	500	36	80	180.0
2.5	20	150	217	6.0	105	75	58	14	16	4	M12	80	8	7	5.4
	25	160	236		115	85	68	14	16		M12	80	8	7	6.1
	32	180	236		140	100	78	18	18		M16	100	9	9	8.3
	40	200	260	7.0	150	110	88		18			120	11	12	11.2
	50	230	288		165	125	102		20			140	12	15	14.5
	65	290	335		185	145	122		22	8		160	14	19	21.9
	80	310	362	8.0	200	160	133		24			200	17	23	28.9
	100	350	417	8.0	235	190	158	22	24		M20	250	22	28	40.1
	125	400	493	9.0	270	220	184	26	26		M24	280	24	35	60.3
	150	480	556	9.0	300	250	212	26	28		M24	320	27	42	79.9

PN4.0、6.4MPa AS Type Elementary Dimensions(Unit:mm)

PN Mpa	DN	Frame dimension		thickness	Flange								Bolt		Hand wheel		Lift Range	Weight kg
		Frame dimension
		L	H ≈
		L	H ≈		D	D₁	D₂	D₃	D₄	F	d₀	b	n	Th.	D₀	S	m
4	65	290	409	8	185	145	122	110	94	3	18	22	8	M16	250	22	19	37.8
	80	310	436	9	200	160	133	121	105		22	24		M16	250	22	23	42.9
	100	350	466	9	235	190	158	150	128		22	24		M20	280	24	28	54.1
6.4	20	230	261	7	130	90	58	51	35		18	22	4	M16	100	9	7	9.3
	25	230	272		140	100	68	58	42		18	24		M16	100	9	7	11
	32	260	304		155	110	78	66	50		22	24		M20	120	11	9	13.1
	40	260	334		170	125	88	76	60		22	26			160	14	12	21.7
	50	300	354	8	180	135	102	88	72		22	26			180	14	15	27.2