GB/T585 Marine Cast Steel Flanged Stop Check Valve Type A/AS

Materials of main parts

Body Material: Cast steel

Disc Material: High-quality Carbon steel

Stem Material: Stainless steel

Overview

Application: This GB/T585 Marine Cast Steel Flanged Stop Check Valve Type A/AS is designed for marine applications involving fresh water, lubricant oil, fuel oil, t≤300°C steam.

Material Specification:

Parts Name	Material	Marks
Cover	Cast steel	ZG230-450
Disc	High-quality Carbon steel	Steel 25
Stem	Stainless steel	2Cr13
Disc seal ring	Stainless steel	H2Cr13
Body seal ring(PN ≤ 2.5)	Stainless steel	H1Cr18Ni9Ti
Body seal ring(PN ≥ 4.0)	Stainless steel	H2Cr13

Technical Specifications:

Model: GB/T585 Marine Cast Steel Flanged Stop Check Valve Type A/AS

Nominal Pressure(Mpa): PN1.0~PN6.4

Nominal Diameter(mm): DN20~DN300

Nominal Pressure (MPa)	Nominal Diameter (mm)	Available medium
1.0	65 ~ 300	Fresh water, Lubricant oil, Fuel oil, t≤300°C steam.
1.6	100 ~ 250
2.5	20 ~ 150
4.0	65 ~ 100	Fresh water, Lubricant oil, Fuel oil, t≤400°C steam.
6.4	20 ~ 50	Fresh water, Lubricant oil, Fuel oil, t≤400°C steam.

Chart 1 Fundamental dimensions for A type of globe check valves with PN1.0、PN1.6 and PN2.5MPa:

PN	DN/mm	Construction dimension		Flange					Bolt		Weight/kg
MPa		L/mm	H/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Weight/kg
		Type A	Type A	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type A
1	65	290	310	155	123	104	15	14	6	M14	14.9
	80	310	345	170	138	118	15	14	8	M14	19
	100	350	374	190	158	138	15	14	8	M14	28.6
	125	400	426	215	183	164	15	14	10	M14	38.2
	150	480	487	240	208	190	15	14	12	M14	51.3
1.6	125	400	465	225	187	168	17	15	10	M16	45.4
1.6	150	480	524	255	217	196	17	15	12	M16	58.9
2.5	20	150	217	95	68	48	13	11	4	M12	4.5
	25	160	217	105	73	56	13	12	4	M12	5.1
	32	180	236	115	83	64	15	13	6	M14	6.9
	40	200	260	125	93	74	15	13	6	M14	9.2
	50	230	288	135	103	84	15	13	6	M14	12.9
	65	290	335	170	132	110	17	15	8	M16	18.8
	80	310	362	185	147	126	17	16	8	M16	24.8
	100	350	417	205	167	146	17	16	10	M16	34.9
	125	400	481	240	196	172	21	19	10	M20	52.2
	150	500	537	270	226	200	21	20	12	M20	68.5

Chart 2 Fundamental dimensions for A type of globe check valves with PN4.0 and PN6.4MPa:

PN	DN/mm	Construction dimension			Flange					Bolt		Weight/kg
MPa		L/mm	H/mm	H1/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Weight/kg
		Type A	Type A	Type A	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type A
4	65	290	409	145	175	137	118	17	18	8	M16	35.2
	80	310	436	155	190	152	130	17	18	8	M16	39.1
	100	350	466	175	225	181	157	21	21	10	M20	53.3
6.4	20	230	261	115	105	73	58	13	13	6	M12	7.7
	25	230	272	115	115	83	66	15	15	6	M14	8.7
	32	260	304	130	125	93	74	15	17	6	M14	10.3
	40	260	334	130	145	107	84	17	19	6	M16	17.7
	50	300	354	150	155	117	96	17	20	6	M16	22.3

Drawing of GB T584 Marine Cast Steel Flanged Stop Valve Type AS.png

Chart 3 Fundamental dimensions for AS type of globe check valves with PN1.0、PN1.6 and PN2.5MPa:

PN MPa	DN/mm	Construction dimension			Flange					Bolt		Weight/kg
		L/mm	H/mm	H1/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Weight/kg
		Type AS	Type AS	Type AS	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type AS
1.0	200	600	621	275	340	295	268	22	24	8	M20	109.0
	250	730	721	325	395	350	320	22	26	12	M20	167.0
	300	850	821	375	445	400	370	22	26	12	M20	225.0
1.6	100	350	417	175	220	180	158	18	22	8	M16	35.4
	125	400	465	200	250	210	184	18	22	8	M16	50.5
	150	480	524	225	285	240	212	22	24	8	M20	67.3
	175	540	573	225	315	270	242	22	24	8	M20	92.1
	200	600	643	275	340	295	268	22	24	12	M20	121.0
	250	730	744	325	405	355	320	26	26	12	M24	180.0
2.5	20	150	217	95	105	75	58	14	16	4	M16	5.4
	25	160	217	100	115	85	68	14	16	4	M16	6.2
	32	180	236	105	140	100	78	18	18	4	M16	8.9
	40	200	260	115	150	110	88	18	18	4	M16	11.2
	50	230	288	125	165	125	102	18	20	4	M16	14.5
	65	290	335	145	185	145	122	18	22	8	M16	21.9
	80	310	362	155	200	160	133	18	24	8	M16	28.9
	100	350	417	175	235	190	158	22	24	8	M20	40.1
	125	400	493	200	270	220	184	26	26	8	M24	60.3
	150	180	556	225	300	250	212	26	28	8	M24	79.9

Chart 4 Fundamental dimensions for AS type type of globe check valves with PN4.0 and PN6.4MPa:

PN MPa	DN/mm	Construction dimension		Flange					Bolt		Weight/kg
		L/mm	H/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Weight/kg
		Type AS	Type AS	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type AS
4.0	65	290	409	185	145	122	18	22	8	M16	37.8
	80	310	436	200	160	133	18	24	8	M16	42.9
	100	350	466	235	190	158	22	24	8	M20	54.1
6.4	20	230	261	130	90	58	18	22	4	M16	9.3
	25	230	272	140	100	68	18	24	4	M16	11.0
	32	260	304	155	110	78	22	24	4	M20	13.1
	40	260	334	170	125	88	22	26	4	M20	21.7
	50	300	354	180	135	102	22	26	4	M20	27.2