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Butt welding connection bellows globe valve

Qiaofa Machinery Manufacturing Co., Ltd., as an industry-leading steam system solutions expert, is committed to providing customers with premium Butt welding connection bellows globe valve products and professional services. With mature production processes and a comprehensive technical support system, we offer precise product selection recommendations and customized solutions tailored to actual operating conditions.

We adhere to customer-oriented principles and drive innovation through technology, providing comprehensive services from product selection to technical consultation, helping enterprises enhance steam system efficiency and create greater value.

Detailed Introduction

Structure and main features of bellows valves

1The double sealing of packing and bellows realizes zero leakage.

2.The body and bonnet are connected by studs with good technological performance.

3.The stem of the valve has the packing box of ordinary valves,and under this packing box,the moveable sealing part bellows is installed inside the bonnet,so that the medium is sealed in the valve cavity outside the stem and cannot enter the packing box.Therefore,the valve is more reliable than ordinary valves in the prevention of leakage,ensuring sealing between stem and bonnet

4.The bellows is designed to be located in the cavity of bonnet,avoiding direct erosion with media and enhancing service life of the bellows.

5.The bellows adopts 2-6 times overlapping,Ensure to use Pressure avoiding valve leakage due to single-layer damage of the bellows and prolonging service life of the valve.

6.As the bellows is designed to be relatively long,the valve is featured by high opening height,reduced fluid main resistance and low flow resistance coefficient.

Application specification

1.Design and manufacturing:

JB/T11150、GB/T12235、DIN3239、DIN3202、BS1873、MSS-SP-117、 ASME B16.34、API 601、GB/T 12234

2.Connection end size:

(1)Socket end size as per:ASME B16.11;JB/T1751

(2)GB12224、ASME B16.25 and DIN3239 Butt welding end conforms to: GB12224;ASME B16.25;DIN3239

(3)Flange end size as per JB/T79、JB/T82、HG20592、GBT9113and ASME B16.5

(4)Thread end size as per:ANSI B1.20.1;JB/T7306

3.Valve inspection and testing as per:API598、GB/T26480

4.Materials as per ANSI/ASTM,GB699 and GB1220

5.Body material:WCB;CF8;CF8M;CF3;CF3M;CN7M;A105;LF2;304(L); 316(L);F347;F321;F51;Monel;Alloy,etc.

6.Bellows material:1Cr8Ni9Ti,00Cr17Ni14Mo2,0Cr18 Ni12M2Ti,GH625,GH4169, Gh202,Monel 400,Inconel 625

主要零件材料(锻件)Materials for main parts(Casting)

主要零件名称 Materials Part name	材料 Material	材料 Material	材料 Material
阀体Body	A105	F304(L)	F316(L)
阀盖Bonnet	A105	F304(L)	F316(L)
上下阀杆 Back stem and lower stem	420	304(L)	316(L)
波纹管Bellows	F321	321/304(L)	F316/316L
填料函Stuffing Box	A105	304(L)	316(L)
阀座、阀瓣、闸板 Seat,Disc&Wedge disc	13Cr	F304(L)	F316(L)
垫片Gasket	304+柔性石墨 304+Flexible Graphite	304+柔性石墨 304+Flexible Graphite	304+柔性石墨 304+Flexible Graphite
填料Packing	柔性石墨 Flexible Graphite	柔性石墨 Flexible Graphite	柔性石墨 Flexible Graphite
螺栓Bolt	B7	B8	B8
阀杆螺母Yoke nut	40	13Cr	13Cr

主要零件材料(铸件)Materials for main parts(Casting)

主要零件名称 Materials Part name	材料 Material	材料 Material	材料 Material
阀体Body	WCB	CF8(M)	CF3(M)
阀盖Bonnet	WCB	CF8(M)	F316(L)
上下阀杆 Back stem and lower stem	13Cr	304(L)	316(L)
波纹管Bellows	1Cr18i9Ti	321/304(L)	F316/316L
填料函Stuffing Box	25	304(L)	316(L)
阀座、阀瓣、闸板 Seat,Disc&Wedge disc	13Cr	F304(L)	F316(L)
垫片Gasket	304+柔性石墨 304+Flexible Graphite	304+柔性石墨 304+Flexible Graphite	304+柔性石墨 304+Flexible Graphite
填料Packing	柔性石墨 Flexible Graphite	柔性石墨 Flexible Graphite	柔性石墨 Flexible Graphite
螺栓Bolt	B7	B8	B8
阀杆螺母Yoke nut	铅青铜	铅青铜	铅青铜

Note:The materials of packing and gaskets can be supplied according to customer requirements.

对接焊连接波纹管截止阀 Butt welding connection bellows globe valve

PN1.6~4.0MPa (锻造)

结构示意图Structural diagram

Application specification

1.Design and manufacturing as per JB/T11150、GB/T12235、DIN3239 and DIN3230

2.Face-to-face dimension as per DIN3202、BG/T 12221

3.Butt welding end size as per DIN3239、GB/T12224

4.Valve inspection and testing as per GB/T13927、JB/T9092、API598、GB/T 26480

性能规范Performance specification

主要外形尺寸Main external dimension

DN	L	D	D1	D2	d	H	D0
15	130	32	22	17	15	306	148
20	150	32	28	22	20	306	148
25	160	38	34	28	25	310	148
32	190	60	43	37	32	420	196
40	200	60	49	43	40	420	196
50	230	70	61	54	50	432	196

对接焊连接波纹管截止阀 Butt welding connection bellows globe valve

Class150~1500(锻造)

结构示意图Structural diagram

Application specification

1.Design and manufacturing as per JB/T11150、BS 5352、 MSS-SP-117、ASME B16.34

2.Face-to-face dimension as per ANSI B16.10

3.Butt welding end size as per ASME B16.25

4.Valve inspection and testing as per API 598

性能规范Performance specification

主要外形尺寸Main external dimension

Class	NPS	L	D	D1	D2	d	H	D0
150Lb	1/2	108	32	22	17	15	306	148
	3/4	117	32	28	22	20	306	148
	1	127	38	34	28	25	310	148
	1 1/4	140	60	43	37	32	420	196
	1 1/2	165	60	49	43	40	420	196
	2	203	70	61	54	50	432	196
300Lb	1/2	152	32	22	17	15	306	148
	3/4	178	32	28	22	20	306	148
	1	203	38	34	28	25	310	148
	1 1/4	216	60	43	37	32	420	196
	1 1/2	229	60	49	43	40	420	196
	2	267	70	61	54	50	432	196
600Lb	1/2	165	32	22	17	15	306	148
	3/4	190	32	28	22	20	306	148
	1	216	38	34	28	25	310	148
	1 1/4	229	60	43	37	32	420	196
	1 1/2	241	60	49	43	40	420	196
	2	292	70	61	54	50	432	196
1500Lb	1/2	216	40	15	一	12	442	220
	3/4	229	44	19	一	16	442	220
	1	254	50	24	一	29	448	220
	1 1/4	279	60	32	一	29	680	320
	1 1/2	305	60	37	一	34	680	320
	2	368	70	46	一	43	688	320

对接焊连接波纹管截止阀 Butt welding connection bellows globe valve

PN1.6~4.0MPa (铸造)

结构示意图Structural diagram

1.Design and manufacturing as per JB/T11150、GB/T12235、 DIN3230

2.Face-to-face dimension as per DIN3202

3.Butt welding end size as per DIN3239、GB/T12224

4.Valve inspection and testing as per GB/T13927、JB/T9092

性能规范Performance specification

主要外形尺寸Main external dimension

DN	L	D	D1	D2	d	H	D0
65	290	92	72	67	65	495	220
80	310	106	84	80	78	548	250
100	350	122	107	104	100	626	320
125	400	157	135	130	125	710	320
150	480	184	163	157	150	855	400
200	600	238	211	206	200	1016	500
250	730	296	262	260	300	1240	600
300	711	345	310	306	330	1287	600
350	838	378	344	340	332	1416	600
400	864	434	391	384	378	1548	850
450	978	491	436	432	425	1748	850
500	1016	542	488	484	478	1790	850

对接焊连接波纹管截止阀 Butt welding connection bellows globe valve

Class150~1500(铸造)

结构示意图Structural diagram

Application specification

1.Design and manufacturing as per JB/T11150、BS1873、MSS-SP-117 and ASME B16.34

2.Face-to-face dimension as per ANSI B16.10

3.Butt welding end size as per ASME B 16.25

4.Valve inspection and testing as per API598

性能规范Performance specification

主要外形尺寸Main external dimension

Class	NPS	L	D	D1	D2	d	H	D0
150Lb	2 1/2	216	92	72	67	65	495	220
	3	241	106	84	80	78	548	250
	4	292	122	107	104	100	626	320
	5	356	157	135	130	125	710	320
	6	406	184	163	157	150	855	400
	8	495	238	211	206	200	1016	500
	10	622	296	262	260	300	1240	600
	12	698	345	310	306	330	1287	600
	14	787	378	344	340	332	1416	600
	16	914	434	391	384	408	1548	850
	18	978	491	436	432	425	1748	850
	20	978	542	488	484	478	1790	850
300Lb	2 1/2	292	92	72	67	65	495	220
	3	318	106	84	80	78	548	250
	4	356	122	107	104	100	626	320
	5	400	157	135	130	125	710	320
	6	444	184	163	157	150	855	400
	8	559	238	211	206	200	1016	500
	10	620	296	262	260	300	1240	600
	12	711	345	310	306	330	1287	600
	14	838	378	344	340	332	1416	600
	16	864	434	391	384	308	1548	850
	18	978	491	436	432	425	1748	850
	20	1016	542	488	484	487	1820	850
600LB	2 1/2	330	92	72	67	65	495	220
	3	356	106	84	80	78	548	250
	4	432	122	107	104	100	626	320
	5	508	157	135	130	125	710	320
	6	559	184	163	157	150	855	400
	8	660	238	211	206	200	1016	500
	10	787	296	262	260	300	1240	600
	12	838	345	310	306	330	1287	600
	14	889	378	344	340	332	1416	600
	16	991	434	391	384	308	1548	850
	18	1020	491	433	429	425	1859	850
1500LB	2 1/2	419	100	58	54	52	820	400
	3	470	120	72	67	65	1092	500
	4	546	140	92	87	85	1305	500

Butt welding connection bellows globe valve

承插焊连接波纹管截止阀

带锁对接焊连接波纹管截止阀

法兰连接波纹管截止阀

对接焊连接波纹管截止阀

DN	L	D	D1	D2	d	H	D0
15	130	32	22	17	15	306	148
20	150	32	28	22	20	306	148
25	160	38	34	28	25	310	148
32	190	60	43	37	32	420	196
40	200	60	49	43	40	420	196
50	230	70	61	54	50	432	196

DN	L	D	D1	D2	d	H	D0
15	130	32	22	17	15	306	148
20	150	32	28	22	20	306	148
25	160	38	34	28	25	310	148
32	190	60	43	37	32	420	196
40	200	60	49	43	40	420	196
50	230	70	61	54	50	432	196

DN	L	D	D1	D2	d	H	D0
15	130	32	22	17	15	306	148
20	150	32	28	22	20	306	148
25	160	38	34	28	25	310	148
32	190	60	43	37	32	420	196
40	200	60	49	43	40	420	196
50	230	70	61	54	50	432	196