Butteryfly Valve Series

Description:
This valve is an adjustable valve with simple structure. It also can be used in low pressure pipe as switch control. It has the throttling and cutting off function in corrosive, non-corrosive fluid medium pipelines. Butterfly valve is applicable to generator, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting, and power generation, environmental protection, building water supply and drainage and other engineering system.

Features:
Butterfly valve features simple structure, small volume, light weight, less material consumption, small installation size, small drive moment and simple operation. It also has good flow regulating function and well closing sealing performance. Its reliability and other performance indicators are up to higher level. This butterfly valve has small flow resistance when being opened fully. And it has sensitive flow control when being opened between 15o and 70o. Therefore, this valve will be widely applied to flow control with large caliber. Most butterfly valves can be used to the medium with suspended solids. According to the strength of the seals, this butterfly valve can also be used for powder and grain medium.

Application:
815, 830 series butterfly valve is widely used in petroleum, chemical, industrial environment, water treatment, high-rise buildings, water supply and drainage pipeline, etc. The main structures are wafer type and flange type. And the structure characteristics of 815, 830 L series butterfly valve are that the rim of valve has convex and the design is screw holes single flange structure. Due to the use of Three Eccentric Structure, this butterfly valve has reliable sealing performance, which can ensure the butterfly plate does not contact seal seat when that opens. It can ensure the uniform load of seal seat and prolong the life. It ensures reliable seal, high temperature resistant, well wear resistance, well corrosion resistance, etc.

Model Illustration of Butterfly Valve Series：

Standard of Butterfly Valve Series:
Design standard: API609-83
Flange connection: ANSI B 16.5
Structural length: ANSI B 16.10-1992
Pressure test: API 598-82

Technical Parameters of Butterfly Valve:

Nominal diameter	DN(mm)	830W	830L
		2"～36"	2"～36"
Nominal pressure	PN(Mpa)	150Lb	300Lb
Test pressure	Strength test	3.0	7.5
	Seal test	2.2	5.5
Suitable medium	Water, steam, oil, and others
Suitable temperature	-29℃～425℃

Part Materials of Butterfly Valve:

Item	Materials
Body	WCB, 304, 316, 316SS, CF8M
Plate	WCB, 304, 316, 316SS, CF8M
Stem	316, 2Cr13, 1Cr18Ni9Ti
Seal ring	316, Fluoroplastics
Packing	flexible graphite, fluoroplastics

815W Series ANSI:

Nominal diameter		Structure length (standard)		Outline dimensions (reference value)		Connection size (standard)					Reference weight (kg)
		L	L1	H	H0	D	D1	D2	M	Z-d
2"	50	43	108	110	345	152	120.5	92	M18	4-19	9
3"	80	49	114	125	380	190	152.5	127	M18	4-19	11
4"	100	56	127	145	415	229	190.5	157	M18	8-19	13
5"	125	64	140	165	455	254	216	186	M20	8-22	16
6"	150	70	140	175	545	279	241.5	216	M20	8-22	26
8"	200	71	150	210	645	343	298.5	270	M20	8-22	34
10"	250	76	160	250	695	406	362	324	M24	12-25	51
12"	300	86	178	285	830	483	432	381	M24	12-25	72
14"	350	92	190	320	900	533	476	413	M27	12-29	106
16"	400	102	216	355	980	597	540	470	M27	16-29	133
18"	450	114	222	380	1030	635	578	533	M30	16-32	176
20"	500	127	229	415	1110	699	635	584	M30	20-32	190
24"	600	154	267	475	1305	813	749.5	692	M33	20-35	394
30"	750	165	292	580	1525	985	914	857	M33	28-35	476
32"	800	190	318	630	1585	1060	978	914	M39	28-41	618
36"	900	203	330	680	1765	1168	1085	1022	M39	32-41	762

815L Series ANSI:

Nominal diameter		Structure length (standard)	Outline dimensions (reference value)		Connection size (standard)				Reference weight (kg)
		L	H	H0	D1	D2	M	Z-d
6"	150	70	175	545	241.5	216	M20	8-22	28
8"	200	71	210	615	298.5	270	M20	8-22	36
10"	250	76	250	695	362	324	M24	12-25	53
12"	300	86	285	830	432	381	M24	12-25	74
14"	350	92	320	900	476	413	M27	12-29	110
16"	400	102	355	980	540	470	M27	16-29	138
18"	450	114	380	1030	578	533	M30	16-32	180
20"	500	127	415	1110	635	584	M30	20-32	196
24"	600	154	475	1305	749.5	692	M33	20-35	400
30"	750	165	580	1525	914	857	M33	28-35	482
36"	900	203	680	1765	1085	1022	M39	32-41	488

830W Series ANSI:

Nominal diameter		Structure length (standard)		Outline dimensions (reference value)		Connection size (standard)					Reference weight (kg)
		L	L1	H	H0	D	D1	D2	M	Z-d
2"	50	43	108	110	345	165	127	92	M18	8-19	9	20
3"	80	49	114	125	380	210	168	127	M20	8-22	12	29
4"	100	56	127	145	415	254	200	157	M20	8-22	13	35
5"	125	64	140	165	455	279	235	186	M20	8-22	18	40
6"	150	70	140	175	545	318	270	216	M20	12-22	28	81
8"	200	71	150	210	645	381	330	270	M24	12-26	37	94
10"	250	76	160	250	695	445	387	324	M27	16-29	56	158
12"	300	86	178	285	830	521	451	381	M30	16-32	79	183
14"	350	92	190	320	900	584	514	413	M30	20-32	116	239
16"	400	102	216	355	980	648	571	470	M33	20-35	146	302
18"	450	114	222	380	1030	711	628	533	M33	24-35	193	346
20"	500	127	229	415	1110	775	686	584	M33	24-35	209	434
24"	600	154	267	475	1305	914	813	692	M39	24-41	433	638
30"	750	165	292	580	1525	1092	997	857	M45	28-49	523	788
36"	900	203	330	680	1765	1270	1168	1022	M50	32-53	838	1146

830L Series ANSI:

Nominal diameter		Structure length (standard)	Outline dimensions (reference value)		Connection size (standard)				Reference weight (kg)
		L	H	H0	D1	D2	M	Z-d
6"	150	76	175	545	270	216	M20	12-22	29
8"	200	89	210	615	330	270	M24	12-26	38
10"	250	114	250	695	387	324	M27	16-29	58
12"	300	114	285	830	451	381	M30	16-32	81
14"	350	127	320	900	514	413	M30	20-32	119
16"	400	140	355	980	591	470	M33	24-35	149
18"	450	152	380	1030	628	533	M33	24-35	198
20"	500	152	415	1110	686	584	M33	24-35	215
24"	600	178	475	1305	813	692	M39	24-41	436
30"	750	229	580	1525	997	857	M45	28-49	528
36"	900	241	680	1765	1168	1022	M50	32-52	843