CB-T 3196-95 Flanged Cast Steel Seawater Globe Valve

Item	Description
Product Name	CB-T 3196-95 Flanged Cast Steel Seawater 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

CB/T 3196 CAST STEEL SEA WATER GLOBE VALVE

1. SUBJECT CONTENT AND SCOPE OF APPLICATION

This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, and packaging of flanged cast steel sea water globe valves (hereinafter referred to as "globe valves") with flange connection dimensions in accordance with GB 569 and GB 2501.

This standard applies to globe valves used in ship sea water piping systems with sea water and fresh water as the medium.

2. NORMATIVE REFERENCES

GB 569 - Ship flanges - Connection dimensions and sealing faces
GB 600 - General technical requirements for ship piping valves
GB 2501 - Ship flanges - Connection dimensions and sealing faces (four-position)
GB 3032 - Marking of ship piping accessories
GB 11698 - Ship flanges - Structural length for connecting metal valves
ZB/T U52 001 - Wall thickness of ship casting valves

3. PRODUCT CLASSIFICATION

3.1 TYPES

Types of globe valves are specified as follows:
Type A - Straight-through globe valve with flange connection dimensions per GB 569.
Type AS - Straight-through globe valve with flange connection dimensions per GB 2501.
Type B - Right-angle globe valve with flange connection dimensions per GB 569.
Type BS - Right-angle globe valve with flange connection dimensions per GB 2501.

3.2 BASIC PARAMETERS

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

TABLE 1 - BASIC PARAMETERS OF GLOBE VALVES

TYPE	NOMINAL PRESSURE PN (MPa)	NOMINAL DIAMETER DN (mm)
A, AS, B, BS	1.6	40 ~ 150
	1.0	65 ~ 150
	0.6	200 ~ 250

3.3 STRUCTURAL LENGTH AND BASIC DIMENSIONS

3.3.1 The structure and basic dimensions of Type A and Type B globe valves shall be in accordance with Figure 1, Figure 2, and Table 2.

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

NOMINAL PRESSURE PN (MPa)	NOMINAL DIAMETER DN	STRUCTURAL DIMENSIONS			FLANGE CONNECTION DIMENSIONS							HANDWHEEL D0	WEIGHT (kg)
		L (Type A)	L (Type B)	H	L2	D	D1	D2	b	n	Th.			Type A	Type B
1.6	40	200	225	80	90	125	93	74	13	4	M12	120	12	9	9
	50	230	235	95	95	135	103	84	15	4	M14	140	12	12	12
	65	290	235	115	115	155	123	104	15	6	M16	160	14	19	19
	80	310	235	125	125	170	138	118	15	8	M16	200	17	23	23
	100	350	275	150	150	190	158	138	17	8	M16	250	22	30	30
	125	400	300	175	175	215	183	164	17	10	M16	250	22	33	33
	150	480	350	200	200	240	208	190	19	12	M16	280	24	44	44
1.0	65	290	275	115	115	155	123	104	15	4	M14	160	12	17	17
	80	310	300	125	125	170	138	118	15	6	M16	180	14	23	23
	100	350	300	150	150	190	158	138	17	8	M16	200	17	28	28
	125	400	350	175	175	215	183	164	17	8	M16	220	20	33	33
	150	480	400	200	200	240	208	190	19	10	M16	250	22	42	42
0.6	200	600	500	250	250	295	264	247	23	8	M20	320	27	85	85
	250	730	600	315	315	365	327	306	26	12	M20	360	34	130	130

3.3.2 The structure and basic dimensions of Type AS and Type BS globe valves shall be in accordance with Figure 1, Figure 2, and Table 3.

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

NOMINAL PRESSURE PN (MPa)	NOMINAL DIAMETER DN	STRUCTURAL DIMENSIONS			FLANGE CONNECTION DIMENSIONS							HANDWHEEL D0	WEIGHT (kg)
		L (Type AS)	L (Type BS)	H	L2	D	D1	D2	b	n	Th.			Type AS	Type BS
1.6	40	200	225	80	90	110	85	68	16	4	M12	120	12	11	11
	50	230	235	95	95	125	100	80	17	4	M16	140	12	15	15
	65	290	235	115	115	145	120	100	18	4	M16	160	14	20	20
	80	310	235	125	125	160	135	110	20	4	M16	200	17	28	28
	100	350	275	150	150	180	155	130	20	4	M16	250	22	37	37
	125	400	300	175	175	210	185	155	22	8	M16	250	22	42	42
	150	480	400	200	200	240	210	180	22	8	M20	280	24	50	50
1.0	65	290	275	115	115	145	120	100	16	4	M16	160	12	19	19
	80	310	300	125	125	160	135	110	18	4	M16	180	14	24	24
	100	350	300	150	150	180	155	130	18	4	M16	200	17	31	31
	125	400	350	175	175	210	185	155	20	8	M16	220	20	37	37
	150	480	400	200	200	240	210	180	22	8	M20	250	22	45	45
0.6	200	600	500	250	250	295	264	247	24	8	M20	320	27	85	85
	250	730	600	315	315	365	327	306	26	12	M20	360	34	130	130

3.4 MARKING EXAMPLES

For a straight-through sea water globe valve with nominal pressure 1.6 MPa, nominal diameter 40 mm, flange connection dimensions and sealing faces in accordance with GB 569:
A04040 CB/T 3196-1995

For a straight-through sea water globe valve with nominal pressure 1.0 MPa, nominal diameter 100 mm, flange connection dimensions and sealing faces in accordance with GB 2501:
BS10100 CB/T 3196-1995

4. TECHNICAL REQUIREMENTS

4.1 GENERAL REQUIREMENTS

The technical requirements for globe valves shall comply with GB 600.

4.2 MATERIALS

The main part materials for globe valves shall be in accordance with Table 4.

TABLE 4 - MATERIALS FOR MAIN PARTS

PART NAME	MATERIAL NAME	GRADE	STANDARD NO.
Body, Bonnet	Cast Steel	ZG 230-450	CB 772-85
Disc	Cast Tin Bronze	ZQSn10-2	GB 883-83
Stem	Aluminum Bronze	QA19-2	GB 4429-84
Seat	Cast Tin Bronze	ZQSn10-2	GB 883-83

4.3 FLANGE AND STRUCTURAL LENGTH

The flange connection dimensions and sealing faces of globe valves shall comply with GB 569 or GB 2501.
The structural length of Type AS and Type BS globe valves shall comply with GB 11698.
The wall thickness of the globe valve body shall comply with ZB/T U52 001.

5. TEST METHODS AND INSPECTION RULES

5.1 TEST METHODS

The test methods for globe valves shall comply with GB 600.

5.2 INSPECTION RULES

The factory inspection items and requirements for globe valves shall be in accordance with Table 5.

TABLE 5 - INSPECTION ITEMS

SERIAL NO.	ITEM	REQUIREMENTS
1	Determination of mechanical properties and chemical composition analysis of castings	Conform to CB 772
2	Visual inspection	Conform to GB 600
3	Strength test	Conform to GB 600
4	Sealing test	Conform to GB 600

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