Cv-values: 860SHDWN

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Series	Code	Description
860	860SHDWN	JAMESBURY 860/868 SERIES SOFT SEATED HIGH PERFORMANCE BUTTERFLY VALVE, CLASS 600

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Technical bulletin

Wafer-Sphere™ high performance butterfly valves provide excellent control performance and bi-directional bubble tight shut-off. The flexible seat design provides low pressure sealing and long seat life. The double off-set disc ensures extended cycle life and low maintenance costs. Fire-Tite™ and cryogenic valve constructions are available. A variety of construction materials are available to handle a wide range of severe and general service applications. Wafer and single flange lugged bodies mount between ANSI 600 flanges.

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
80	3	0	4	11	20	33	43	62	85	117	144	155
100	4	0	5	16	36	57	78	107	146	202	247	260
150	6	0	7	41	98	168	221	296	400	532	686	750
200	8	0	9	86	195	293	428	596	840	1144	1238	1350
250	10	0	13	97	217	343	530	770	1060	1417	1927	2100
300	12	0	27	171	336	510	803	1148	1587	2192	2790	2900
350	14	0	69	331	577	923	1215	1731	2385	3308	3923	4000
400	16	0	111	458	761	1109	1552	2180	2993	4028	4989	5100
450	18	0	166	461	798	1242	1650	2366	3223	4347	5263	5500
500	20	0	239	612	1090	1766	2287	3377	4608	5804	7458	7950
600	24	0	244	623	1173	1808	2626	3787	5497	7757	10628	11300

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
80	3	0	0.149	0.158	0.18	0.208	0.237	0.26	0.277	0.292	0.309	0.326
100	4	0	0.153	0.161	0.179	0.208	0.238	0.268	0.291	0.308	0.324	0.34
150	6	0	0.167	0.132	0.153	0.184	0.221	0.26	0.297	0.324	0.344	0.362
200	8	0	0.136	0.135	0.155	0.183	0.219	0.257	0.294	0.327	0.347	0.364
250	10	0	0.111	0.119	0.145	0.18	0.219	0.26	0.301	0.336	0.357	0.376
300	12	0	0.115	0.124	0.15	0.185	0.224	0.264	0.305	0.34	0.361	0.38
350	14	0	0.117	0.13	0.158	0.193	0.232	0.271	0.31	0.341	0.362	0.381
400	16	0	0.103	0.121	0.152	0.19	0.23	0.272	0.313	0.349	0.371	0.391
450	18	0	0.109	0.126	0.157	0.193	0.233	0.274	0.314	0.349	0.37	0.39
500	20	0	0.118	0.134	0.164	0.199	0.238	0.278	0.318	0.352	0.373	0.392
600	24	0	0.118	0.137	0.167	0.202	0.241	0.282	0.322	0.355	0.377	0.396

F_L-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
80	3	0	0.86	0.85	0.83	0.81	0.8	0.78	0.73	0.66	0.61	0.59
100	4	0	0.87	0.86	0.83	0.81	0.8	0.78	0.73	0.67	0.62	0.61
150	6	0	0.87	0.85	0.83	0.8	0.79	0.75	0.7	0.63	0.48	0.41
200	8	0	0.87	0.85	0.82	0.8	0.78	0.73	0.66	0.58	0.46	0.4
250	10	0	0.87	0.86	0.84	0.82	0.79	0.76	0.71	0.64	0.47	0.4
300	12	0	0.87	0.85	0.83	0.81	0.79	0.76	0.7	0.62	0.46	0.43
350	14	0	0.87	0.84	0.82	0.8	0.78	0.74	0.68	0.6	0.44	0.42
400	16	0	0.87	0.84	0.82	0.8	0.79	0.75	0.69	0.62	0.45	0.44
450	18	0	0.86	0.85	0.83	0.81	0.8	0.77	0.72	0.66	0.2	0.6
500	20	0	0.86	0.85	0.83	0.8	0.79	0.75	0.69	0.64	0.52	0.44
600	24	0	0.87	0.85	0.84	0.82	0.8	0.78	0.73	0.65	0.53	0.45

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
80	3	0	0.68	0.68	0.67	0.67	0.66	0.63	0.59	0.53	0.48	0.46
100	4	0	0.68	0.68	0.67	0.67	0.66	0.63	0.59	0.54	0.49	0.48
150	6	0	0.68	0.68	0.67	0.66	0.64	0.61	0.56	0.5	0.44	0.42
200	8	0	0.68	0.68	0.67	0.66	0.63	0.59	0.53	0.45	0.44	0.42
250	10	0	0.68	0.68	0.68	0.67	0.65	0.61	0.57	0.51	0.44	0.42
300	12	0	0.68	0.68	0.67	0.67	0.65	0.61	0.56	0.49	0.44	0.43
350	14	0	0.68	0.68	0.67	0.66	0.64	0.6	0.55	0.47	0.43	0.43
400	16	0	0.68	0.68	0.67	0.66	0.64	0.6	0.55	0.49	0.44	0.43
450	18	0	0.68	0.68	0.67	0.66	0.65	0.62	0.58	0.53	0.21	0.47
500	20	0	0.68	0.68	0.67	0.66	0.64	0.6	0.56	0.51	0.44	0.43
600	24	0	0.68	0.68	0.68	0.67	0.66	0.63	0.59	0.52	0.45	0.44

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
80	3	0	0.37	0.35	0.33	0.3	0.28	0.26	0.24	0.21	0.19	0.18
100	4	0	0.38	0.36	0.33	0.3	0.28	0.26	0.24	0.21	0.19	0.18
150	6	0	0.38	0.36	0.32	0.28	0.27	0.25	0.23	0.2	0.15	0.13
200	8	0	0.38	0.35	0.31	0.28	0.26	0.24	0.21	0.17	0.14	0.13
250	10	0	0.38	0.36	0.33	0.3	0.27	0.25	0.23	0.2	0.14	0.13
300	12	0	0.38	0.35	0.33	0.3	0.27	0.25	0.23	0.19	0.14	0.14
350	14	0	0.37	0.34	0.31	0.28	0.26	0.24	0.22	0.18	0.14	0.13
400	16	0	0.37	0.34	0.31	0.28	0.27	0.25	0.22	0.19	0.14	0.14
450	18	0	0.37	0.35	0.32	0.29	0.28	0.26	0.24	0.21	0.07	0.18
500	20	0	0.37	0.35	0.32	0.28	0.27	0.25	0.22	0.2	0.15	0.14
600	24	0	0.37	0.36	0.33	0.31	0.28	0.26	0.24	0.21	0.16	0.14

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File creation day: 22.4.2024 (day.month.year)

Cv-values

Cv/d2-values

FL-values

XT-values

z-values

C_v-values

C_v/d²-values

F_L-values

X_T-values