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API butterfly valve

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API butterfly valve

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Feature：
1. widely applicable to petroleum,chemical industry,environmenttal protectijon water treatment,high building,water supplying and drain pipelines,and so on.
2. Three-eccentric structure,reliable sealing, it assures not to contact the seat when the disc is in open position and elimenate uneven load of the seats,
3. extend the usage lifetime,and also assure the reliable sealing ability with high temperature sesistant,friction resistant,corrosion resistant,etc.

Standard:
Design and Manufacture: API609-83
Face to face(end to end):ANSI B16.10-1992,
Flanged connection: ANSI B16.5
Test and inspection: API598-82,

Structure：

Main Parts Material:

NO.	NAME OF PART	MATERIAL	NO,	NAME OF PART	MATERIAL
1	THE ROUND EQUIP		9	PIN	304SS,316SS
2	YOKE	304SS,316SS	10	DISC	304SS,316SS
3	PRESS COVER	GRAPHITE	11	STEM	304SS,316SS
4	PACKING	304SS,316SS	12	STUD	304SS,316SS
5	TOP SET	ASME 410,420	13	BODY	GRAPHITE
6	AIRTIGHT COVER	304SS,316SS	14	DESCEND SET	304SS,316SS
7	SEAL RING	304+ GRAPHITE	15	FOLIO WREATH	WCB, 304SS
8	GLAND	WCB,CF8,CF8M	16	BELOW BONNET	304SS, 316SS

Main Dimensions:

API815W Series

Nominal diameter		Face-to-face(Standard)				External Dimension(Reference)				Connection Dimension(Standard)								Reference Weight
Nominal diameter		L		L1		H		H0		D		D1		D2		M	Z．d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	M	Z．d
2”	50	1.69	43	4.25	108	4.33	110	13.58	345	6.00	152	4.75	120.5	3.62	92	M18	4-19	9	20
21/2″	65	1.69	46	4.40	112	4.64	118	14.25	362	7.00	178	5.49	139.5	4.13	105	M18	4-19	10	25
3″	80	1.94	48	4.50	114	4.92	125	14.96	380	8.50	190	6.00	152.5	5.00	127	M18	4-19	11	29
4″	100	2.19	54	5.00	127	5.70	145	16.34	415	9.00	229	7.50	190.5	6.19	157	M18	8-19	13	33
5″	125	2.50	55	5.50	140	6.50	165	17.91	455	10.00	254	8.50	216	7.32	186	M20	8-22	16	38
6″	150	2.75	57	5.50	140	6.89	175	21.45	545	11.00	279	9.50	241.5	8.50	216	M20	8-22	26	74
8″	200	2.81	64	5.90	150	8.26	210	24.21	645	13.50	343	11.75	298.5	10.62	270	M20	8-22	34	86
10″	250	3.00	71	6.30	160	9.84	250	27.36	695	16.00	406	14.25	362	12.75	324	M22	12-25	51	142
12″	300	3.18	81	7.00	178	11.24	285	32.78	830	19.00	483	17.00	432	15.00	381	M22	12-25	72	167
14″	350	3.63	92	7.50	190	12.60	320	35.43	900	21.00	533	18.75	476	16.25	413	M27	12-29	106	218
16″	400	4.00	102	8.50	216	13.98	355	38.58	980	23.50	597	21.25	540	18.50	470	M27	16-29	133	275
18″	450	4.50	114	8.74	222	14.96	380	40.55	1030	25.00	635	22.75	578	21.00	533	M30	16-32	176	315
20″	500	5.00	127	9.00	229	16.34	415	43.70	1110	27.50	699	25.00	635	23.00	584	M30	20-32	190	395
24″	600	6.06	154	10.50	267	18.70	475	51.37	1305	32.00	813	29.50	749.5	27.25	692	M33	20-35	394	580
30″	750	6.50	165	11.50	292	22.38	580	60.03	1525	38.75	985	36.00	914	33.75	857	M33	28-35	476	717
32″	800	7.50	190	12.50	318	24.80	630	62.40	1585	41.75	1060	38.50	978	36.00	914	M39	28-41	618	880
36″	900	8.00	200	13.00	330	26.77	680	69.48	1765	46.00	1168	42.75	1085	40.25	1022	M39	32-41	762	1042

API815L Series

Nominal diameter		Face-to-face(Standard)		External Dimension(Reference)				Connection Dimension(Standard)						Reference Weight
Nominal diameter		L		H		H0		D1		D2		M	Z．d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	M	Z．d
6″	150	2.75	57	6.89	175	21.45	545	9.50	241.5	8.50	216	M20	8—22	28
8″	200	2.81	64	8.26	210	24.21	615	11.75	298.5	10.62	270	M20	8,22	36
10″	250	3.00	71	9.84	250	27.36	695	14.25	362	12.75	324	M22	12—25	53
12″	300	3.18	81	11.24	285	32.78	830	17.00	432	15.00	381	M22	12—25	74
14″	350	3.63	92	12.60	320	35.43	900	18.75	476	16.25	413	M27	12.29	110
16″	400	4.00	102	13.98	355	38.58	980	21.25	540	18.50	470	M27	16—29	138
18″	450	4.50	114	14.96	380	40.55	1030	22.75	578	21．OO	533	M30	16—32	180
20″	500	5.00	127	16.34	415	43.70	1110	25.00	635	23.00	584	M30	20.32	196
24″	600	6.06	154	18.70	475	51.37	1305	29.50	749.5	27.25	692	M33	20.35	400
30″	750	6.50	165	22.38	580	60.03	1525	36.00	914	33.75	857	M33	28.35	482
36″	900	8.00	200	26.77	680	69.48	1765	42.75	1085	40.25	1022	M39	32.41	488

API 830W Series

Noninal diameter		Face-to-face(Standard)				external Dimension(Reference)				Connection Dimension(Standard)								Reference Weight
Noninal diameter		L		L1		H		H0		D		D1		D2		M	Z-d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	M	Z-d
2″	50	1.69	43	4.25	150	4.33	110	13.58	345	6.50	165	5.00	127	3.62	92	M18	8.19	9	20
2 1/2″	65	1.69	46	4.50	170	4.64	118	14.25	362	7.48	190	5.86	149	4.13	105	M18	8-19	10	25
3″	80	1.88	48	4.50	180	4.92	125	14.96	380	8.26	210	6.63	168	5.00	127	M20	8-22	12	29
4″	100	2.12	54	5.00	190	5.70	145	16.34	415	10.00	254	7.87	200	6,19	157	M20	8-22	13	35
5″	125	2.16	55	5.50	200	6.50	165	17.91	455	11.00	279	9.25	235	7.32	186	M20	8-22	18	40
6″	150	2.32	59	5.50	210	6.89	175	21.45	545	12.50	318	10.63	270	8.50	216	M20	12-22	28	81
8″	200	2.87	73	5.90	230	8.26	210	24.21	645	15.00	381	13.00	330	10.62	270	M24	12-26	37	94
10″	250	3.26	83	6.30	250	9.84	250	27.36	695	17.50	445	15.24	387	12.75	324	M27	16-29	56	158
12″	300	3.62	92	7.00	270	11.24	285	32.78	830	20.50	521	17.76	451	15.00	381	M30	16-32	79	183
14″	350	4.60	117	7.50	290	12.60	320	35.43	900	23.00	584	20.24	514	16.25	413	M30	20-32	116	239
16″	400	5.23	133	8.50	310	13.98	355	38.58	980	25.50	648	12.50	571	18.50	470	M33	20-35	146	302
18″	450	5.86	149	8.74	330	14.96	380	40.55	1030	28.00	711	24.72	628	21.00	533	M33	24-35	193	346
20″	500	6.25	159	9.00	350	16.34	415	43.70	1110	30.50	775	27.00	686	23.00	584	M33	24-35	209	434
24″	600	7.12	181	10.50	390	18.70	475	51.37	1305	36.00	914	32.00	813	27.25	692	M39	24-41	433	638
30″	750	9.01	229	11.50	430	22.38	580	60.03	1525	43.00	1092	39.25	997	33.75	857	M45	28-49	523	788
36″	900	9.48	241	13.00	510	26.77	680	69.48	1765	50.00	1270	46.00	1168	40.25	1022	M50	32-53	838	1146

API830L Series

Nominal diameter		Face-to-face(Standard)		External Dimension(Reference)				Connection Dimension (Standard)						Reference Weight
Nominal diameter		L		H		H0		D1		D2		M	Z．d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	M	Z．d
6″	150	3.00	59	6.89	175	21.45	545	10.63	270	8.50	216	M20	12-22	29
8″	200	2.87	73	8.26	210	24.21	615	13.00	330	10.62	270	M24	12-26	38
10″	250	3.26	83	9.84	250	27.36	695	15.24	387	12.75	324	M27	16-29	58
12″	300	3.62	92	11.24	285	32.78	830	17.76	451	15.00	381	M30	16-32	81
14″	350	4.60	117	12.60	320	35.43	900	20.24	514	16.25	413	M30	20-32	119
16″	400	4.44	133	13.98	355	38.58	980	22.30	591	18.50	470	M33	24-35	149
18″	450	5.86	149	14.96	380	40.55	1030	24.72	628	21.00	533	M33	24-35	198
20″	500	6.25	159	16.34	415	43.70	1110	27.00	686	23.00	584	M33	24-35	215
24″	600	7.12	181	18.70	475	51.37	1305	32.00	813	27.25	692	M39	24-41	436
30″	750	9.01	229	22.38	580	60.03	1525	39.25	997	33.75	857	M45	28-49	528
36″	900	9.88	241	26.77	680	69.48	1765	46.00	1168	40.25	1022	M50	32-52	843

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