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CB MARINE VALVE

Marine Flanged Suction Check Valve CB/T3478-1992

Marine Flanged Suction Check Valve CB/T3478-1992:

1.Design standard:CB/T3478-1992.

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

3.End type:Flange.

4.PN:1.0Mpa.

5.DN:32mm-250mm.

6.Main material:

7.Application:Sea water piping,fresh water piping and oil piping.

8.Function:Such valves are used for preventing refluence.

9.Fundamental dimensions of Marine Flanged Suction Check Valve CB/T3478-1992

Chart 1 Fundamental dimensions of type R made from cast iron:

DN mm	Structure dimension			Thickness	Flange connection dimension					Bolt		Lift range	Weight
DN mm	H/mm	h/mm	D3/mm	δ/mm	D/mm	D1/mm	D2/mm	d0/mm	b/mm	Th.	n	m	kg
32	150	15	85	7	115	83	64	15	13	M14	6	9	2.08
40	170	17	95	8	125	93	74					12	2.90
50	194	21	120	8	135	103	84					15	3.98
65	210	26	150	9	155	123	104					19	5.25
80	230	30	180	9	170	138	118		14		8	23	7.91
100	269	39	230	10	190	158	138		15		8	28	13.90
125	290	47	280	10	215	183	164				10	35	18.80
150	335	57	335	11	240	208	190				12	42	25.90
200	395	73	440	11	295	264	247				12	58	46.10
250	508	91	545	13	365	327	306	17	18	M16	14	72	67.70

Chart 2 Fundamental dimensions of type RS made from cast iron:

DN mm	Structure dimension			Thickness	Flange connection dimension					Bolt		LIft range	Weight
DN mm	H/mm	h/mm	D3/mm	δ/mm	D/mm	D1/mm	D2/mm	d0/mm	b/mm	Th.	n	m	kg
32	150	15	85	7	120	90	70	14	16	M12	4	9	2.38
40	170	17	95	8	130	100	80					12	3.15
50	194	21	120	8	140	110	90					15	4.26
65	210	26	150	9	160	130	110					19	5.49
80	230	30	180	9	190	150	128	18	18	M16		23	8.44
100	269	39	230	10	210	170	148		18			28	15.71
125	290	47	280	10	240	200	178		20		8	35	20.25
150	335	57	335	11	265	225	202		20			42	27.70
200	395	73	440	11	320	280	258		22			58	49.20
250	508	91	545	13	375	335	312		24		12	72	71.20

Chart 3 Fundamental dimensions of type R&Y made from cast bronze:

DN mm	Structure dimension			Thickness	Flange connection dimension					Bolt		Lift range	Weight kg
DN mm	H/mm	h/mm	D3/mm	δ/mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	Th.	n	m	R	Y
32	150	15	85	5	115	83	64	15	13	M14	6	9	2.71	2.66
40	170	17	95		125	93	74		14			12	3.62	3.60
50	194	21	120		135	103	84					15	4.69	4.72
65	210	26	150	6	155	123	104					19	6.26	6.32
80	230	30	180		170	138	118				8	23	9.31	9.47
100	269	39	230		190	158	138				8	28	15.40	15.70
125	290	47	280	7	215	183	164				10	35	22.30	22.50
150	335	57	335	7	240	208	190				12	42	29.70	29.80
200	395	73	440	8	295	264	247		15		12	58	55.00	55.50
250	508	91	545	9	365	327	306	17	16	M16	14	72	78.30	79.60

Chart 4 Fundamental dimensions of type RS&YS made from cast bronze:

DN mm	Structure dimension			Thickness	Flange connection dimension					Bolt		Lift range	Weight kg
DN mm	H/mm	h/mm	D3/mm	δ/mm	D/mm	D1/mm	D2/mm	d0/mm	b/mm	Th.	n	m	RS	YS
32	150	15	85	5	120	90	70	14	15	M12	4	9	2.96	3.01
40	170	17	95		130	100	80		16			12	3.85	3.87
50	194	21	120		140	110	90		17			15	5.00	4.97
65	210	26	150	6	160	130	110		17			19	6.56	6.50
80	230	30	180		190	150	128	18	19	M16		23	10.00	9.84
100	269	39	230		210	170	148		20			28	17.50	17.20
125	290	47	280	7	240	200	178				8	35	23.90	23.70
150	335	57	335	7	265	225	202					42	31.60	31.50
200	395	73	440	8	320	280	258		22			58	58.60	58.10
250	508	91	545	9	375	335	312		24		12	72	82.90	81.80