GB T587 Bronze Flange Globe Valve

Item	Description
Product Name	GB T587 Bronze Flange Globe Valve
Certificates	ABS, LR, BV, DNV, RINA, CCS
FOB Price	Get Latest Price Now
Warranty	12 months (unless otherwise specified)
Place of Origin	China

Overview

1. SCOPE

This standard specifies the classification, marking, requirements, test methods, inspection rules, marking, packaging, and storage of marine bronze flanged stop valves (hereinafter referred to as "stop valves") with flange connection dimensions in accordance with GB/T 569 and GB/T 2501.
This standard applies to the design, manufacture, and acceptance of stop valves used in fresh water, seawater, lubricating oil, fuel oil, and steam piping systems with temperatures not exceeding 250 °C.

2. CLASSIFICATION AND MARKING

2.1 TYPES

Types of stop valves are specified as follows:
TYPE A - Straight-through stop valves with flange connection dimensions and sealing surfaces in accordance with GB/T 569.
TYPE B - Right-angle stop valves with flange connection dimensions and sealing surfaces in accordance with GB/T 569.
TYPE AS - Straight-through stop valves with flange connection dimensions and sealing surfaces in accordance with GB/T 2501.
TYPE BS - Right-angle stop valves with flange connection dimensions and sealing surfaces in accordance with GB/T 2501.

2.2 BASIC PARAMETERS

The basic parameters of stop valves are shown in Table 1.

TABLE 1 - BASIC PARAMETERS OF STOP VALVES

Type	Nominal Pressure PN / MPa	Nominal Diameter DN / mm
A, B	1.0	65 ~ 150
	1.6	125 ~ 150
	2.5	20 ~ 125
AS, BS	0.6	15 ~ 150
	1.6	65 ~ 150
	2.5	15 ~ 125

2.3 STRUCTURE AND BASIC DIMENSIONS

TABLE 2 - BASIC DIMENSIONS OF TYPE A AND B STOP VALVES (UNIT: MM)

Nominal Pressure PN / MPa	Nominal Dia. DN	Structural Dimensions		Flange							Handwheel D3	Lift m	Theoretical Weight kg
		L (Type A, B)	H (Type A, B)	t	D	D1	D2	b	n	Th.			Type A	Type B
1.0	65	290	115	310	6	155	123	104	14	4	M12	140	12	14.8	12.8
	80	310	125	345		170	138	118		4	M12	160	14	19.3	17.6
	100	350	150	374	325	14	190	158	138	14	8	M14	180	16	28.5	23.6
	125	400	175	426	366		215	183	164		8	M14	200	17	38.4	35.8
	150	480	180	487	415	160	8	240	208	190	16	8	M16	225	19	57.5	48.6
1.6	125	400	175	465	405	155	8	225	183	164	17	10	M16	250	22	54.1	49.3	45.7
	150	480	180	524	452	160	8	255	217	196	19	12	M16	280	24	57.5	52.5	58.9
2.5	20	150	75	217	203	5		95	68	48	12	4	M12	80	8	7	4.7	4.5
	25	160	80	217	203			105	73	56	13	4	M12	100	9	7	5.5	5.4
	32	180	85	236	216	85		115	83	64		4	M12	120	11	9	6.9	6.4
	40	200	90	260	236	90		125	93	74	15	6	M14	140	12	11	8.4	8.4
	50	230	95	288	258	95	6	135	103	84		6	M14	140	12	14	10.5	10.5
	65	290	115	335	301	115	7	155	123	104		6	M14	160	14	18	13.5	13.5
	80	310	125	366	325	125		170	138	118	17	8	M16	200	17	24	26.5	24.0
	100	350	150	437	378	135	8	190	158	138		8	M16	250	22	35	38.2	33.4
	125	400	175	493	433	155	9	220	190	172	19	10	M20	280	24	44	46.5	44.2	54.5

TABLE 3 - BASIC DIMENSIONS OF TYPE AS AND BS STOP VALVES (UNIT: MM)

Nominal Pressure PN / MPa	Nominal Dia. DN	Structural Dimensions				Wall Thickness t	Flange							Handwheel D3	Lift m	Theoretical Weight kg
		L (Type AS)	L (Type BS)	H1 (Type AS, BS)	H≈ (Type AS, BS)		D	D1	D2	d0	b	n	Th.			Type AS	Type BS
0.6	15	130		90	203	4	80	55	40	11	12	4	M10	80	8	7	3.9	4.0
	20	150	95	217	203	4	90	65	50	11	12	4	M10	80	8	7	4.7	4.5
	25	160	100	217	203		100	75	60	12	14	4	M12	100	9	7	5.4	5.1
	32	180	105	236	216	5	120	90	70	14	15	4	M12	120	11	9	6.6	6.4
	40	200	115	260	236	5	130	100	80	14	15	4	M12	120	11	11	8.7	8.4
	50	230	125	288	258	6	140	110	90	14	15	4	M14	140	12	14	11.0	10.5
	65	290	145	310	277	6	160	130	110	14	17	4	M14	160	14	19	17.1	15.8
	80	310	155	345	308	6	190	150	128	18	18	4	M14	180	16	24	26.2	21.7
	100	350	175	374	325	7	210	170	148	18	18	4	M16	200	18	35	33.7	29.9
	125	400	200	426	366	7	240	200	178	18	20	8	M16	225	19	44	45.4	44.4
	150	480	225	487	415	8	265	225	202	18	20	8	M16	250	22	57	67.9	62.9
1.6	65	290	145	335	301	6	185	145	122	17	4	M16	160	14	18	20.8	19.6
	80	310	155	366	325	7	200	160	133	18	4	M16	180	24	28.7	27.7	27.7
	100	350	175	427	378	7	220	180	158	18	8	M16	200	35	45.8	40.6
	125	400	200	465	405	8	250	210	184	22	8	M20	225	44	57.6	51.9
	150	480	225	524	457	8	285	240	212	22	8	M20	250	57	69.5	69.2
2.5	15	130		90	203	4	95	65	47	12	4	M12	80	8	7	5.4	5.2
	20	150	217	203		105	73	56	12	4	M12	80	8	7	5.9	5.6
	25	160	217	203	5	115	83	64	14	4	M12	100	9	7	6.5	6.4
	32	180	236	216		120	90	70	14	4	M12	100	9	8	8.8	8.5
	40	200	260	236	5	130	100	78	14	4	M12	120	11	10	10.8	10.4
	50	230	125	288	258	6	140	110	88	14	4	M12	140	12	12	11.0	10.5
	65	290	145	335	301	6	155	123	102	16	4	M14	160	14	18	13.9	13.4
	80	310	155	366	323	7	170	138	117	16	4	M14	180	19	21.0	19.8
	100	350	175	427	378	8	200	160	133	18	4	M14	200	24	27.9	27.9
	125	400	200	493	433	9	220	190	172	18	8	M20	225	35	46.4	41.2
	150	480	225	493	433	9	270	220	184	20	8	M24	280	44	76.7	62.1
		480	225	527	457	9	300	250	210	22	8	M24	280	57	-	-

3. REQUIREMENTS

3.1 MATERIALS

TABLE 4 - MATERIALS FOR MAIN PARTS

Part Name	Material Name	Grade	Standard No.
Body, Bonnet, Disc, Gland Nut	Cast Tin Bronze	ZCuSn5Pb5Zn5	GB/T 1176-1987
Stem	Aluminum Bronze	QAl9-2	GB/T 4423-2007

3.2 STRENGTH

The valve body shall have no leakage under a hydraulic pressure of 1.5 times the nominal pressure.

3.3 SEALING

4.3.1 The sealing surface between the valve disc and the seat shall have no leakage under a hydraulic pressure of 1.1 PN.
4.3.2 The sealing surface between the valve stem, bonnet, and stuffing box shall allow a leakage rate of (0.01 × DN) mm³/s under a hydraulic pressure of 1.1 PN.

3.4 DIMENSIONAL TOLERANCES

4.4.1 The wall thickness of the stop valve shall comply with CB/T 3927; the wall thickness tolerance shall comply with GB/T 600.
4.4.2 Unindicated linear dimensional tolerances of stop valves shall comply with the requirements of Grade m in GB/T 1804-2000.
4.4.3 The structural length and tolerance of Type A and Type B stop valves shall comply with the requirements of the construction drawings; the structural length and tolerance of Type AS and Type BS stop valves shall comply with GB/T 11698.

Related products for "GB T587 Bronze Flange Globe Valve"