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CB MARINE VALVE

Marine Cast Steel Flanged Check Valve CB/T3944-2002

Marine Cast Steel Flanged Check Valve CB/T3944-2002:

1.Design standard:CB/T3944-2002.

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

3.End type:Flange.

4.PN:1.0/1.6/2.5Mpa.

5.DN:20mm-125mm.

6.Main material:

7.Application:Liquified gas with temperature above -165℃，corrosive medium.

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

9.Fundamental dimensions of Marine Cast Steel Flanged Check Valve CB/T3944-2002

Chart 1 Fundamental dimensions of type A&B：

PN	DN	Structure dimension					t	Flange connection dimension					Bolt		Lift range	Weight kg
PN	DN	L/mm		H/mm		H1/mm	t	Flange connection dimension					Bolt		Lift range	Weight kg
Mpa	mm	A	B	A	B	B	mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	m	A	B
1.0	65	290	115	124	91	115	6	155	123	104	15	14	6	M14	18	10.3	8.2
	80	310	125	151	110	125		170	138	118			8		24	13.4	11.4
	100	350	150	165	116	135		190	158	138			8		35	20.5	16.2
	125	400	175	184	124	155	7	215	183	164			10		44	27.9	22.8
2.5	20	150	75	84	70	75	5	95	68	48	13	11	4	M12	6	2.6	2.5
	25	160	80	84	70	80		105	73	56	13	12	4	M12	7	3.4	3.3
	32	180	85	90	70	85		115	83	64	15	13	6	M14	9	5.3	4.5
	40	200	90	99	75	90		125	93	74					11	6.3	5.3
	50	230	95	110	81	95	6	135	103	84					14	8.4	8.2
	65	290	115	128	94	115	7	170	132	110	17	15	8	M16	18	12.3	12.0
	80	310	125	156	115	125	7	185	147	126		15			24	21.9	19.8
	100	350	150	158	119	135	8	205	167	146		16			35	25.2	23.6

Chart 2 Fundamental dimensions of type AS&BS：

PN	DN	Structure dimension					t	Flange connection dimension					Bolt		Lift range	Weight kg
PN	DN	L/mm		H/mm		H1/mm	t	Flange connection dimension					Bolt		Lift range	Weight kg
Mpa	mm	AS	BS	AS	BS	BS	mm	D/mm	D1/mm	D2/mm	d₀/mm	b/mm	n	Th.	m	AS	BS
1.6	100	350	175	158	119	175	8	220	180	158	18	22	8	M16	35	28.4	26.1
1.6	125	400	200	184	124	200	8	250	210	184	18	22	8	M16	44	36.6	32.2
2.5	20	150	95	84	70	95	5	105	75	58	14	16	4	M12	7	3.8	3.8
	25	160	100	84	70	100	5	115	85	68	14	16		M12	7	4.5	4.6
	32	180	105	90	70	105	6	140	100	78	18	18		M16	9	7.2	6.7
	40	200	115	99	75	115		150	110	88		18			11	7.9	7.8
	50	230	125	110	81	125		165	125	102		20			14	9.6	9.3
	65	290	145	128	94	145	7	185	145	122		22	8		18	14.3	13.0
	80	310	155	156	115	155		200	160	133		24			24	19.8	17.7
	100	350	175	158	119	175		235	190	158	22	24		M20	35	28.3	26.0