GB T/591 Marine Cast Iron Stop Check Valve Type B/BS

Materials of main parts

Body Material: Cast Iron

Disc Material: Cast Tin Bronze

Stem Material: Cast Alumium Bronze

Overview

Application: This GB T/591 Marine Cast Iron Stop Check Valve Type B/BS is designed for marine applications involving fresh water, lubricant oil, fuel oil, t≤220℃ steam.

Material Specification:

Parts Name	Material
	Name	Marks
Body, Cover	Cast iron	HT200
Disc	Cast tin bronze	ZCuSn10Zn2
Stem	Cast aluminum bronze	QA19-2
Seat	Aluminum bronze	CuAl9Mn2

Technical Specifications:

Model: GB T/591 Marine Cast Iron Stop Check Valve Type B/BS
Nominal Pressure(Mpa): Type B: PN1.0~PN1.6 Type BS: PN0.6~PN1.6
Nominal Diameter(mm): Type B: DN20~DN150 Type BS: DN20~DN300

Type	Nominal Pressure PN (MPa)	Nominal Diameter DN (mm)	Available Medium
B	1.0	65 ~ 150	Sea water, Fresh water, Lubricant oil, Fuel oil, t≤220℃ steam.
B	1.6	20 ~ 50
BS	0.6	50 ~ 300
	1.0	65 ~ 250
	1.6	20 ~ 50

Dimensions：

Type B：

PN Mpa	DN	Frame dimension			Thickness	Flange					Bolt			Hand wheel		Lift Range	Weight(kg)
				H1	t	D	D1	D2	d₀	b	n 个	Th	Do	S	m	A	B
		B	B	B
1.0	65	115	275	115	9	155	123	104	13	15	6	M14	140	12	17	18.4	16.2
	80	125	298	125		170	138	118			8		160	14	20	22.6	19.5
	100	150	315	135	10	190	158	138					180	25	25	30.7	26.9
	125	175	354	155		215	183	164			10		200	17	32	38.9	37.1
	150	180	396	160	11	240	208	190			16	12			38	54.6	47.5
1.6	20	75	203	75	7	95	68	48	13	14	4	M12	80	8	7	5.6	5.0
	25	80		80		105	73	56								5.7	5.3
	32	85	216	85	8	115	83	64	15	15	6	M14	100	9	9	6.8	6.7
	40	90	236	90		125	93	74		16			120	11	11	9.0	8.3
	50	95	258	95		135	103	84					140	12	14	11.8	11.2

Type BS：

Nominal Pressure PN (MPa)	Nominal Diameter DN	Frame Dimension	Frame Dimension	Frame Dimension	Thickness t	Flange D	Flange D1	Flange D2	Flange d₀	Flange b	Bolt n (pcs)	Bolt Th	Hand Wheel D₀	Hand Wheel S	Lift Range m	Weight (kg) AS Type	Weight (kg) BS Type
		L (BS)	H ≈ (BS)	H₁ (BS)
0.6	50	125	258	125	8	140	110	90	14	16	4	M12	140	12	14	12.1	12.1
	65	145	275	145	9	160	130	110	14	18	4	M12	160	14	17	18.7	17.2
	80	155	298	155	9	190	150	128	14	18	4	M12	180	14	20	23.4	21.3
	100	175	315	175	10	210	170	148	14	18	4	M16	200	17	25	34.2	32.0
	125	200	354	200	10	240	200	178	18	20	8	M16	280	24	32	42.1	42.4
	150	225	396	225	11	265	225	202	18	20	8	M16	360	27	38	57.8	54.9
	175	225	474	225	11	295	255	232	18	22	8	M16	450	32	45	75.9	69.4
	200	275	525	275	13	320	280	258	22	24	12	M20	450	32	50	101.0	94.2
	250	325	608	325	13	375	335	312	22	24	12	M20	450	32	65	156.0	149.0
	300	375	666	375	13	440	395	365	22	24	12	M20	450	32	75	219.0	208.0
1.0	65	145	275	145	9	185	145	122	18	20	4	M16	140	12	17	21.1	19.6
	80	155	298	155	9	200	160	133	18	22	4	M16	160	14	20	25.6	23.5
	100	175	315	175	10	220	180	158	18	24	8	M16	180	14	25	34.7	32.5
	125	200	354	200	10	250	210	184	18	26	8	M20	200	17	32	43.9	44.2
	150	225	396	225	11	285	240	212	22	26	8	M20	280	24	38	61.8	58.9
	175	225	474	225	11	315	270	242	22	28	8	M20	360	27	45	79.4	72.9
	200	275	525	275	13	340	295	268	22	28	12	M20	450	32	50	105.0	98.2
	250	325	608	325	13	395	350	320	22	28	12	M20	450	32	65	158.0	151.0
1.6	20	95	203	95	7	105	75	58	14	16	4	M12	80	8	7	6.2	5.7
	25	100	203	100	7	115	85	68	14	16	4	M12	100	9	9	6.6	6.4
	32	105	216	105	8	140	100	78	14	18	4	M16	120	11	9	8.4	8.5
	40	115	236	115	8	150	110	88	18	18	4	M16	140	12	11	10.8	10.5
	50	125	258	125	8	165	125	102	18	20	4	M16	140	12	14	14.1	14.1