GB T/591 Marine Cast Iron Stop Check Valve Type A/AS

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 Type A/AS 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	Cast aluminum bronze	QA19-2

Technical Specifications:

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

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

Dimensions：

Type A：

PN Mpa	DN	Frame dimension		Thickness	Flange					Bolt			Hand wheel		Lift Range
		L	H ≈	t	D	D1	D2	d₀	b	n 个	Th	Do	S	m	A
		A	A
1.0	65	290	308	9	155	123	104	13	15	6	M14	140	12	17	18.4
	80	310	339		170	138	118			8		160	14	20	22.6
	100	350	364	10	190	158	138					180	25	25	30.7
	125	400	414		215	183	164			10		200	17	32	38.9
	150	480	468	11	240	208	190			16	12			38	54.6
1.6	20	150	217	7	95	68	48	13	14	4	M12	80	8	7	5.6
	25	160			105	73	56								5.7
	32	180	236	8	115	83	64	15	15	6	M14	100	9	9	6.8
	40	200	260		125	93	74		16			120	11	11	9.0
	50	230	288		135	103	84					140	12	14	11.8

Type AS：

Nominal Pressure PN (MPa)	Nominal Diameter DN	Frame Dimension L	Frame Dimension H	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
0.6	50	230	288	8	140	110	90	14	16	4	M12	140	12	14	12.1
	65	290	308	9	160	130	110	14	18	4	M12	160	14	17	18.7
	80	310	339	9	190	150	128	14	18	4	M12	180	14	20	23.4
	100	350	364	10	210	170	148	14	18	4	M16	200	17	25	34.2
	125	400	414	10	240	200	178	18	20	8	M16	280	24	32	42.1
	150	480	468	11	265	225	202	18	20	8	M16	360	27	38	57.8
	175	540	542	11	295	255	232	18	22	8	M16	450	32	45	75.9
	200	600	603	13	320	280	258	22	24	12	M20	450	32	50	101.0
	250	730	706	13	375	335	312	22	24	12	M20	450	32	65	156.0
	300	850	769	13	440	395	365	22	24	12	M20	450	32	75	219.0
1.0	65	290	308	9	185	145	122	18	20	4	M16	140	12	17	21.1
	80	310	339	9	200	160	133	18	22	4	M16	160	14	20	25.6
	100	350	364	10	220	180	158	18	24	8	M16	180	14	25	34.7
	125	400	414	10	250	210	184	18	26	8	M20	200	17	32	43.9
	150	480	468	11	285	240	212	22	26	8	M20	280	24	38	61.8
	175	540	542	11	315	270	242	22	28	8	M20	360	27	45	79.4
	200	600	603	13	340	295	268	22	28	12	M20	450	32	50	105.0
	250	730	706	13	395	350	320	22	28	12	M20	450	32	65	158.0
1.6	20	150	217	7	105	75	58	14	16	4	M12	80	8	7	6.2
	25	160	217	7	115	85	68	14	16	4	M12	100	9	9	6.6
	32	180	236	8	140	100	78	14	18	4	M16	120	11	9	8.4
	40	200	260	8	150	110	88	18	18	4	M16	140	12	11	10.8
	50	230	288	8	165	125	102	18	20	4	M16	140	12	14	14.1