Product Introduction

The triple offset all-metal flange bi-directional butterfly valve series is a long-life and energy-saving butterfly valve. Its structure is designed based on the three-dimensional eccentric principle, and the valve seat adopts a multi-level structure or all metal sealing structure that is compatible with hard and soft seals. It is a high-performance butterfly valve product that can be used in high temperature and high pressure environments. Widely used in pipelines for corrosive media such as petroleum, chemical, metallurgical, power, heating, municipal water supply, and water supply and drainage, as a cut-off or regulating medium flow rate.

Sales Hotline：

086-189-6973-8119

Product Details

Principle Of Operation

Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off.This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling,providing a torque generated resilient seal with sufficient “wedging" to ensure a uniform seal contact.

Material list

ITEM	Component	Carbon Steel	Stainless Steel
1	Flange Nut	35A194-2H	06Cr19Ni10 304
2	Flange Stud	45A193-B7	06Cr19Ni10 304
3	Flange	25A29M 1025	06Cr17Ni12Mo2316
4	Gasket	06Cr19Ni10+Graphite 304+Graphite	06Cr17Ni12Mo2+Graphite 316+Graphite
5	Locking Ring	2Cr13 A276 420	06Cr17Ni12Mo2 316
6	Stem	2Cr13 A276 420	17-4PH
7	Screen	06Cr19Ni10304	06Cr17Ni12Mo2 316
8	Sleeve	2Cr13 A276 420	06Cr17Ni12Mo2 316
9	Pin	06Cr19Ni10 304	17-4PH
10	Disc	A216 WCB	CF8M
11	Seal Ring	2Cr13 A276 420	06Cr17Ni12Mo2 316
12	Body	A216 WCB	CF8M
13	Yoke	A216 WCB	A216 WCB
14	Hex Head	8.8A193-B7	06Cr19Ni10 304
15	Sleeve	2Cr13 A276 420	06Cr17Ni12Mo2 316
16	Screen	06Cr19Ni10 304	06Cr17Ni12Mo2 316
17	Stem	2Cr13 A276 420	17-4PH
18	Packing Ring	2Cr13 A276 420	06Cr17Ni12Mo2 316
19	Washer	65Mn A29M 5140	65Mn A29M 5140
20	Cap screw	8.8A193-B7	8.8A193-B7
21	Packing Nut	35A194-2H	06Cr19Ni10 304
22	Packing Bolt	45A193-B7	06Cr19Ni10 304
23	Packing Plate	25A29M 1025	06Cr19Ni10 304
24	Packing Gland	25A29M 1025	06Cr19Ni10 304
25	Packing	High carbon fiber	High carbon fiber
26	Disc Pressure Ring	45A29M 1045	06Cr17Ni12Mo2 316
27	Cap screw	8.8A193-B7	06Cr17Ni12Mo2 316

Valve Flow coefficent(Cv Value)

DN		Class 150LB									Class 300LB
DN		10°	20°	30°	40°	50°	60°	70°	80°	90°	10°	20°	30°	40°	50°	60°	70°	80°	90°
mm	inch	10°	20°	30°	40°	50°	60°	70°	80°	90°	10°	20°	30°	40°	50°	60°	70°	80°	90°
80	3	6	23	39	54	71	96	128	156	165	6	23	39	54	71	96	128	156	165
100	4	12	42	72	98	130	176	234	285	302	12	42	72	98	130	176	234	285	302
150	6	31	59	101	178	297	448	616	758	796	25	54	91	162	268	407	559	689	725
200	8	57	108	185	327	544	821	1130	1390	1460	45	98	166	298	492	746	1030	1260	1330
250	10	99	187	320	566	942	1420	1960	2410	2530	82	178	301	540	891	1350	1860	2290	2410
300	12	147	279	478	846	1410	2120	2920	3600	3780	122	266	450	807	1330	2020	2780	3420	3600
350	14	201	380	651	1150	1920	2890	3980	4890	5140	167	363	613	1100	1810	2750	3780	4660	4900
400	16	313	594	1020	1800	2990	4510	6210	7640	8020	248	539	910	1630	2690	4090	5610	6920	7280
450	18	413	782	1340	2370	3940	5940	8180	10100	10600	326	710	1200	2150	3550	5380	7400	9110	9590
500	20	509	965	1650	2920	4860	7340	10100	12400	13000	403	876	1480	2650	4380	6640	9130	11300	11800
600	24	734	1390	2380	4210	7000	10600	14500	17900	18800	580	1260	2130	3820	6310	9570	13100	16200	17100
700	28	1060	2010	3450	6100	10100	15300	21100	25900	27200	844	1840	3100	5560	9190	13900	19100	23600	24800
750	30	1200	2270	3880	6870	11400	17200	23700	29200	30700	986	2150	3620	6490	10700	16300	22400	27500	29000
800	32	1370	2590	4440	7840	13000	19700	27100	33300	35000	1110	2420	4080	7310	12100	18300	25200	31000	32600
900	36	1680	3180	5450	9630	16000	24200	33300	40900	43000	1410	3070	5190	9300	15400	23300	32000	39400	41500
1000	40	2220	4210	7210	12700	21200	31900	44000	54100	56900	1700	3690	6230	11200	18400	28000	38400	47400	49900
1050	42	2340	4440	7610	13400	22400	33700	46500	57100	60000	1940	4230	7140	12800	21100	32000	44000	54200	57100
1200	48	3120	5920	10100	17900	29800	45000	61900	76100	80000	2040	4440	7500	13400	22200	33700	46300	57000	60000

Main dimensionsPN0.6MPa

DN(mm)	L1	D	D1	D2	b	f	Z-Φd	M	N	d1	Dn	H1	H2	H
50	108	140	110	90	16	2	4-Φ14	12	4	47	57	193	94	20
80	114	190	150	128	18	2	4-Φ18	16	4	78	90	221	118	25
100	127	210	170	148	18	2	4-Φ18	16	4	96	110	243	130	30
125	140	240	200	178	18	2	4-Φ18	16	8	121	135	261	153	35
150	140	265	225	202	20	2	4-Φ18	16	8	146	161	273	165	40
200	152	320	280	258	22	2	4-Φ18	16	8	202	222	309	198	45
250	165	375	335	312	24	2	8-Φ18	16	12	245	278	337	235	50
300	178	440	395	365	24	2	8-Φ22	20	12	303	330	382.5	274.5	67
350	190	490	445	415	24	2	8-Φ22	20	12	351	382	435	314	81
400	216	540	495	465	24	2	12-Φ22	20	16	398	432	457	344	87
450	222	595	550	520	24	2	12-Φ22	20	16	450	484	510	369	98
500	229	645	600	570	26	2	16-Φ22	20	20	501	535	579	410.5	105
600	267	755	705	670	26	2	16-Φ26	24	20	602	636	635	472.5	117
700	292	860	810	775	26	5	20-Φ26	24	24	692	726	671	529.5	117
800	318	975	920	880	26	5	20-Φ30	27	24	792	826	800	648	120
900	330	1075	1020	980	26	5	20-Φ30	27	24	892	926	862	708.0	128
1000	410	1175	1120	1080	26	5	24-Φ30	27	28	992	1028	955	766.2	170
1200	470	1405	1340	1295	28	5	28-Φ33	30	32	1192	1228	1088	884	182
1400	530	1630	1560	1510	32	5	32-Φ36	33	36	1392	1428	1188	1022	202
1600	600	1830	1760	1710	34	5	36-Φ36	33	40	1592	1628	1227	1095	245
1800	670	2045	1970	1920	36	5	40-Φ39	36	44	1792	1828	1300	1165	245
2000	760	2265	2180	2125	38	5	44-Φ42	39	48	1992	2028	1390	1280	245
2200	800	2475	2390	2330	60	6	48-Φ48	42	52	2192	2228	1504	1320	245
2400	850	2685	2600	2540	62	6	52-Φ48	42	56	2392	2428	1750	1425	245
2600	900	2900	2810	2740	64	6	56-Φ54	48	60	2592	2628	1910	1540	245
2800	950	3110	3020	2950	68	6	60-Φ54	48	64	2792	2828	2103	1640	245
3000	1000	3310	3220	3150	70	6	64-Φ54	48	68	2992	3028	2234	1740	245

Main dimensionsPN1.0MPa

DN(mm)	L1	D	D1	D2	b	f	Z-Φd	M	N	d1	Dn	H1	H2	H
50	108	165	125	102	20	2	4-Φ18	16	4	47	57	193	94	20
80	114	200	160	138	20	2	4-Φ18	16	8	78	90	221	118	25
100	127	220	180	158	22	2	4-Φ18	16	8	96	110	243	130	30
125	140	250	210	188	22	2	4-Φ18	16	8	121	135	261	153	35
150	140	285	240	212	24	2	4-Φ22	20	8	146	161	273	165	40
200	152	340	295	268	24	2	4-Φ22	20	8	202	222	309	198	45
250	165	395	350	320	26	2	8-Φ22	20	12	245	278	337	235	50
300	178	445	400	370	26	2	8-Φ22	20	12	303	330	382.5	274.5	67
350	190	505	460	430	26	2	12-Φ22	20	16	351	382	435	314	81
400	216	565	515	482	26	2	12-Φ26	24	16	398	432	457	344	87
450	222	615	565	532	28	2	16-Φ26	24	20	450	484	510	369	98
500	229	670	620	585	28	2	16-Φ26	24	20	501	535	579	410.5	105
600	267	780	725	685	34	2	16-Φ30	27	20	602	636	635	472.5	117
700	292	895	840	800	34	5	20-Φ30	27	24	692	726	671	529.5	117
800	318	1015	950	905	36	5	20-Φ33	30	24	792	826	800	648	120
900	330	1115	1050	1005	38	5	24-Φ33	30	28	892	926	862	708.2	128
1000	410	1230	1160	1110	38	5	24-Φ36	33	28	992	1028	955	766.2	170
1200	470	1455	1380	1330	44	5	28-Φ39	36	30	1192	1228	1088	884	182
1400	530	1675	1590	1535	48	5	32-Φ42	39	36	1392	1428	1188	1022	202
1600	600	1915	1820	1760	52	5	36-Φ48	45	40	1592	1628	1227	1095	245
1800	670	2115	2020	1960	56	5	40-Φ48	45	44	1792	1828	1300	1165	245
2000	760	2325	2230	2170	60	5	44-Φ48	45	48	1992	2028	1390	1280	245

Main dimensionsPN1.6MPa

DN(mm)	L1	D	D1	D2	b	f	N	Z-Φd	M	d1	Dn	H1	H2	H
50	108	165	125	102	20	2	4	4-Φ18	16	47	57	193	94	20
80	114	200	160	138	20	2	8	4-Φ18	16	78	90	221	118	25
100	127	220	180	158	22	2	8	4-Φ18	16	96	110	243	130	30
125	140	250	210	188	22	2	8	4-Φ18	16	121	135	261	153	35
150	140	285	240	212	24	2	8	4-Φ22	20	146	161	273	165	40
200	152	340	295	268	24	2	12	8-Φ22	20	202	222	309	198	45
250	165	405	355	320	26	2	12	8-Φ26	24	245	278	337	235	50
300	178	460	410	378	28	2	12	8-Φ26	24	303	330	382.5	274.5	67
350	190	520	470	438	30	2	16	12-Φ26	24	351	382	435	314	81
400	216	580	525	490	32	2	16	12-Φ30	27	398	432	457	344	87
450	222	640	585	550	34	2	20	16-Φ30	27	450	484	510	369	98
500	229	715	650	610	36	2	20	16-Φ33	30	501	535	579	410.5	105
600	267	840	770	725	38	2	20	16-Φ36	33	602	636	635	472.5	117
700	292	910	840	795	40	5	24	20-Φ36	33	692	726	671	529.5	117
800	318	1025	950	900	42	5	24	20-Φ39	36	792	826	800	648	120
900	330	1125	1050	1000	44	5	28	24-Φ39	36	892	926	862	708.2	128
1000	410	1255	1170	1115	46	5	28	24-Φ42	39	992	1028	955	766.2	170
1200	470	1485	1390	1330	52	5	32	28-Φ48	45	1192	1228	1088	884	182
1400	530	1685	1590	1530	58	5	36	32-Φ48	45	1392	1428	1188	1022	202
1600	600	1930	1820	1750	64	5	40	36-Φ55	52	1592	1628	1227	1095	245
1800	670	2130	2020	1950	68	5	44	40-Φ55	52	1792	1828	1300	1165	245
2000	760	2345	2230	2150	70	5	48	44-Φ60	56	1992	2028	1390	1280	245

Main dimensionsPN2.5MPa

DN(mm)	L1	D	D1	D2	b	f	N	Z-Φd	M	d1	Dn	H1	H2	H
50	108	165	125	102	20	2	4	4-Φ18	16	47	57	193	94	20
80	114	200	160	138	24	2	8	4-Φ18	16	78	90	221	118	25
100	127	235	190	162	24	2	8	4-Φ22	20	96	110	243	130	30
125	140	270	220	188	26	2	8	4-Φ26	24	121	135	261	153	35
150	140	300	250	218	28	2	8	4-Φ26	24	146	161	273	165	40
200	152	360	310	278	30	2	12	8-Φ26	24	202	222	309	198	45
250	165	425	370	335	32	2	12	8-Φ30	27	245	278	337	235	50
300	178	485	430	395	34	2	16	12-Φ30	27	303	330	382.5	274.5	67
350	190	555	490	450	38	2	16	12-Φ33	30	351	382	435	314	81
400	216	620	550	505	40	2	16	12-Φ36	33	398	432	457	344	87
450	222	670	600	555	46	2	20	16-Φ36	33	450	484	510	369	98
500	229	730	660	615	48	2	20	16-Φ36	33	501	535	579	410.5	105
600	267	845	770	720	58	2	20	16-Φ39	36	602	636	635	472.5	117
700	292	960	875	820	50	5	24	20-Φ42	39	692	726	671	529.5	117
800	318	1085	990	930	54	5	24	20-Φ48	45	792	826	800	648	120
900	330	1185	1090	1030	58	5	28	24-Φ48	45	892	926	862	708.2	128
1000	410	1320	1210	1140	62	5	28	24-Φ55	52	992	1028	955	766.2	170
1200	470	1530	1420	1350	70	5	32	28-Φ55	52	1192	1228	1088	884	182
1400	530	1755	1640	1560	76	5	36	32-Φ60	56	1392	1428	1171	985	245
1600	600	1975	1860	1780	84	5	40	36-Φ60	56	1592	1628	1237	1075	245
1800	670	2195	2070	1985	90	5	44	40-Φ68	64	1792	1828	1390	1190	245
2000	760	2425	2300	2210	96	5	48	44-Φ68	64	1992	2028	1515	1305	245

Main dimensionsPN4.0MPa

DN(mm)	L1	D	D1	D2	b	f	N	Z-Φd	M	d1	Dn	H1	H2	H
50	150	165	125	102	20	2	4	4-Φ18	16	47	57	135	120	30
80	180	200	160	138	24	2	8	4-Φ18	16	78	90	165	135	34
100	190	235	190	162	24	2	8	4-Φ22	20	96	110	204	155	34
125	200	270	220	188	26	2	8	4-Φ26	24	120	135	230	175	34
150	210	300	250	218	28	2	8	4-Φ26	24	145	161	270	195	64
200	230	375	320	285	34	2	12	8-Φ30	27	200	222	304	235	64
250	250	450	385	345	38	2	12	8-Φ33	30	252	278	319	275	79
300	270	515	450	410	42	2	16	12-Φ33	30	301	330	409	310	79
350	290	580	510	465	46	2	16	12-Φ36	33	351	382	499	350	109
400	310	660	585	535	50	2	16	12-Φ39	36	398	432	515	400	109
450	330	685	610	560	57	2	20	16-Φ39	36	448	484	486	410	109
500	350	755	670	615	57	2	20	16-Φ42	39	495	535	531	455	129
600	390	890	795	735	72	2	20	16-Φ48	45	595	636	629	530	129

Main dimensionsPN6.4MPa

DN(mm)	L1	D	D1	D2	b	f	N	Z-Φd	M	d1	Dn	H1	H2	H
50	150	180	135	102	26	2	4	4-Φ22	20	47	57	135	120	30
80	180	215	170	138	28	2	8	4-Φ22	20	77	90	175	145	34
100	190	250	200	162	30	2	8	4-Φ26	24	94	110	214	165	34
125	200	295	240	188	34	2	8	4-Φ30	27	118	135	250	195	64
150	210	345	280	218	36	2	8	4-Φ33	30	142	161	300	225	64
200	230	415	345	285	42	2	12	8-Φ36	33	198	222	334	265	79
250	250	470	400	345	46	2	12	8-Φ36	33	246	278	339	295	79
300	270	530	460	410	52	2	16	12-Φ36	33	294	330	424	325	109
350	290	600	525	465	56	2	16	12-Φ39	36	342	382	414	365	109
400	310	670	585	535	60	2	16	12-Φ42	39	368	432	520	405	129
500	350	800	705	615	68	2	20	16-Φ48	45	485	535	556	480	129
600	390	930	820	735	76	2	20	16-Φ56	52	585	636	654	555	179

Main dimensionsClass 150LB

DN(mm)		L1	D	D1	D2	b(Min)	f	N	Z-Φd	M(in)	d1	Dn	H1	H2	H
2"	50	108	150	120.7	92.1	17.5	2	4	4-Φ19	5/8-11UNC-2B	52.5	60.3	193	94	20
3"	80	114	190	152.4	127	22.3	2	4	4-Φ19	5/8-11UNC-2B	77.9	88.9	221	118	25
4"	100	127	230	190.5	157.2	22.3	2	8	4-Φ19	5/8-11UNC-2B	102.3	114.3	243	130	30
5"	125	140	255	245.9	185.7	22.3	2	8	4-Φ22	3/4-10UNC-2B	128.2	139.7	261	153	35
6"	150	140	280	241.3	215.9	23.9	2	8	4-Φ22	3/4-10UNC-2	B154.1	168.3	273	165	40
8"	200	152	345	298.5	269.9	27	2	8	4-Φ22	3/4-10UNC-2	B202.7	219.1	309	198	45
10"	250	165	405	362	323.8	28.6	2	12	8-Φ26	7/8-9UNC-2B	254.5	273	337	235	50
12"	300	178	485	431.8	381	30.2	2	12	8-Φ26	7/8-9UNC-2B	304.8	323.9	382.5	274.5	67
14"	350	190	535	476.3	412.8	33.4	2	12	8-Φ29	1-8UNC-2B	336.6	355.6	435	314	81
16"	400	216	595	539.8	469.9	35	2	16	12-Φ29	1-8UNC-2B	387.4	406.4	457	344	87
18"	450	222	635	577.9	533.4	38.1	2	16	12-Φ32	1-1/8-8UN-2B	434.9	457	510	369	98
20"	500	229	700	635	584.2	41.3	2	20	16-Φ32	1-1/8-8UN-2B	482.6	508	579	410.5	105
24"	600	267	815	749.3	692.2	46.1	2	20	16-Φ35	1-1/4-8UN-2B	581.1	610	635	472.5	117
28"	700	292	925	863.3	800	69.9	2	28	24-Φ35	1-1/4-8UN-2B	672.7	711.2	671	529.5	117
32"	800	318	1060	977.9	914	79.4	2	28	24-Φ42	1-1/2-8UN-2B	770.7	812.8	800	648	120
36"	900	330	1170	1085.8	1022	88.9	2	32	28-Φ42	1-1/2-8UN-2B	869.3	914.4	862	708.2	128
40"	1000	410	1290	1200.2	1124	88.9	2	36	32-Φ42	1-1/2-8UN-2B	967.3	1016	955	766.2	170
48"	1200	470	1510	1422.4	1359	106.4	2	44	40-Φ42	1-1/2-8UN-2B	1164	1219.2	1088	884	182

Main dimensionsClass 300LB

DN(mm)		L1	D	D1	D2	b(Min)	f	N	Z-Φd	M(in)	d1	Dn	H1	H2	H
2"	50	150	165	127	92.1	20.7	2	8	4-Φ19	5/8-11UNC-2B	52.5	60.3	135	120	30
3"	80	180	210	168.3	127	27	2	8	4-Φ22	3/4-10UNC-2B	77.9	88.9	159	145	34
4"	100	190	255	200	157.2	30.2	2	8	4-Φ22	3/4-10UNC-2B	102.3	114.3	194	165	34
5"	125	200	280	235	185.7	33.4	2	8	4-Φ22	3/4-10UNC-2B	128.2	139.7	269	200	64
6"	150	210	320	269.9	215.9	35	2	12	8-Φ22	3/4-10UNC-2B	154.1	168.3	269	200	64
8"	200	230	380	330.2	269.9	39.7	2	12	8-Φ26	7/8-9UNC-2B	202.7	219.1	285	235	79
10"	250	250	445	387.4	323.8	46.1	2	16	12-Φ29	1-8UNC-2B	254.5	273	325	275	79
12"	300	270	520	450.8	381	49.3	2	16	12-Φ32	1-1/8-8UN-2B	304.8	323.9	387	315	79
14"	350	290	585	514.4	412.8	52.4	2	20	16-Φ32	1-1/8-8UN-2B	336.6	355.6	410	350	79
16"	400	310	650	571.5	469.9	55.6	2	20	16-Φ35	1-1/4-8UN-2B	387.4	406.4	465	385	109
18"	450	330	710	628.6	533.4	58.8	2	24	20-Φ35	1-1/4-8UN-2B	434.9	457	528	415	109
20"	500	350	775	685.8	584.2	62	2	24	20-Φ35	1-1/4-8UN-2B	482.6	508	561	450	129
24"	600	390	915	812.8	692.2	68.3	2	24	20-Φ42	1-1/2-8UN-2B	581.1	610	636	530	129
28"	700	430	1035	939.8	800	84.2	2	28	24-Φ45	1-5/8-8UN-2B	672.7	711.2	800	590	199
32"	800	470	1150	1054.1	914	96.9	2	28	24-Φ52	1-7/8-8UN-2B	770.7	812.8	860	720	199
36"	900	510	1270	1168.4	1022	103.2	2	32	28-Φ54	2-8UN-2B	869.3	914.4	940	780	199
40"	1000	550	1240	1155.7	1086	112.8	2	32	28-Φ45	1-5/8-8UN-2B	967.3	1016	910	750	199
48"	1200	630	1465	1371.6	1302	131.8	2	32	28-Φ52	1-7/8-8UN-2B	1164	1219.2	1000	850	249

Main dimensionsClass 600LB

DN(mm)		L1	D	D1	D2	b(Min)	f	N	Z-Φd	M(in)	d1	Dn	H1	H2	H
2"	50	150	165	127	92.1	25.4	7	8	4-Φ19	5/8-11UNC-2B	52.5	60.3	175	125	40
3"	80	180	210	168.3	127	31.8	7	8	4-Φ22	3/4-10UNC-2B	77.9	88.9	202	145	44
4"	100	190	275	215.9	157.2	38.1	7	8	4-Φ26	7/8-9UNC-2B	102.3	114.3	208	180	44
5"	125	200	330	266.7	185.7	44.5	7	8	4-Φ29	1-8UNC-2B	128.2	139.7	235	210	79
6"	150	210	355	292.1	215.9	47.7	7	12	8-Φ29	1-8UNC-2B	154.1	168.3	302	225	79
8"	200	230	420	349.2	269.9	55.6	7	12	8-Φ32	1-1/8-8UN-2B	198.5	219.1	315	265	79
10"	250	250	510	431.8	323.8	63.5	7	16	12-Φ35	1-1/4-8UN-2B	247.7	273	376	310	79
12"	300	270	560	489	381	66.7	7	20	16-Φ35	1-1/4-8UN-2B	295.3	323.9	442	340	109
14"	350	290	605	527	412.8	69.9	7	20	16-Φ39	1-3/8-8UN-2B	325.4	355.6	457	365	109
16"	400	310	685	603.2	469.9	76.2	7	20	16-Φ42	1-1/2-8UN-2B	363.5	406.4	561	410	129
18"	450	330	745	654	533.4	82.6	7	20	16-Φ45	1-5/8-8UN-2B	409.5	457	610	450	129
20"	500	350	815	723.9	584.2	88.9	7	24	20-Φ45	1-5/8-8UN-2B	455.6	508	645	485	129
24"	600	390	940	838.2	692.2	101.6	7	24	20-Φ52	1-7/8-8UN-2B	547.7	610	730	555	178

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