GB/T585 Marine Cast Steel Flanged Stop Check Valve Type B/BS

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 B/BS 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 B/BS

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.

GB T584 Marine Cast Steel Flanged Stop Valve Type B .png

Chart 1 Fundamental dimensions for B 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 B	Type B	Type B	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type B
1.0	65	115	277	115	155	123	104	15	14	6	M14	12.9
	80	125	304	125	170	138	118	15	14	8	M14	17.9
	100	150	325	135	190	158	138	15	14	8	M14	24.0
	125	175	366	155	215	183	164	15	14	10	M14	33.7
	150	180	415	160	240	208	190	15	14	12	M14	41.9
1.6	125	175	405	155	225	187	168	17	15	10	M16	38.9
1.6	150	180	452	160	255	217	196	17	15	12	M16	51.7
2.5	20	75	203	75	95	68	48	13	11	4	M12	4.4
	25	80	203	80	105	73	56	13	12	4	M12	5.0
	32	85	216	85	115	83	64	15	13	6	M14	6.1
	40	90	236	90	125	93	74	15	13	6	M14	7.2
	50	95	258	95	135	103	84	15	13	6	M14	12.7
	65	115	301	115	170	132	110	17	15	8	M16	18.9
	80	125	321	125	185	147	126	17	16	8	M16	22.7
	100	150	368	135	205	167	146	17	16	10	M16	31.3
	125	175	432	155	240	196	172	21	19	10	M20	47.9
	150	200	484	175	270	226	200	21	20	12	M20	60.3

Chart 2 Fundamental dimensions for B 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 B	Type B	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th	Type B
4.0	65	145	374	175	137	118	17	18	8	M16	32.9
	80	155	394	190	152	130	17	18	8	M16	36.7
	100	175	416	225	181	157	21	21	10	M20	44.7
6.4	20	115	243	105	73	58	13	13	6	M12	6.5
	25	115	253	115	83	66	15	15	6	M14	7.6
	32	130	281	125	93	74	15	17	6	M14	9.3
	40	130	310	145	107	84	17	19	6	M16	16.4
	50	150	323	155	117	96	17	20	6	M16	20.5

Chart 3 Fundamental dimensions for BS 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	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	Weight/kg
		Type BS	Type BS	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	Type BS
1.0	200	275	543	340	295	268	22	24	8	M20	104.0
	250	325	623	395	350	320	22	26	12	M20	160.0
	300	375	696	445	400	370	22	26	12	M20	216.0
1.6	100	175	368	220	180	158	18	22	8	M16	33.2
	125	200	405	250	210	184	18	22	8	M16	46.1
	150	225	452	285	240	212	22	24	8	M20	62.1
	175	225	505	315	270	242	22	24	8	M20	87.8
	200	275	565	340	295	268	22	24	12	M20	116.0
	250	325	646	405	355	320	26	26	12	M24	173.0
2.5	20	95	203	105	75	58	14	16	4	M16	5.4
	25	100	203	115	85	68	14	16	4	M16	6.1
	32	105	216	140	100	78	18	18	4	M16	8.3
	40	115	236	150	110	88	18	18	4	M16	10.9
	50	125	258	165	125	102	18	20	4	M16	14.2
	65	145	301	185	145	122	18	22	8	M16	20.6
	80	155	321	200	160	133	18	24	8	M16	25.8
	100	175	368	235	190	158	22	24	8	M20	37.8
	125	200	432	270	220	184	26	26	8	M24	58.1
	150	225	484	300	250	212	26	28	8	M24	73.7

Chart 4 Fundamental dimensions for BS 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	H1/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	Weight/kg
		Type BS	Type BS	Type BS	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	Type BS
4.0	65	145	374	145	185	145	122	18	22	8	M16	36.4
	80	155	394	155	200	160	133	18	24	8	M16	40.3
	100	175	416	175	235	190	158	22	24	8	M20	51.5
6.4	20	115	243	115	130	90	58	18	22	4	M16	8.1
	25	115	253	115	140	100	68	18	24	4	M16	10.0
	32	130	281	130	155	110	78	22	24	4	M20	12.2
	40	130	310	130	170	125	88	22	26	4	M20	20.6
	50	150	323	150	180	135	102	22	26	4	M20	25.8