Cv-values: K830SHDWN

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Series	Code	Description
K830	K830SHDWN	JAMESBURY K830/K838 SERIES SOFT SEATED HIGH PERFORMANCE BUTTERFLY VALVE, CLASS 300 CRYOGENIC CONSTRUCTION

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IMO

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 offset 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 300 and DIN PN 40 flanges.

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
65	2.5	0	4	7	11	16	22	30	43	59	71	78
80	3	0	4	12	21	35	46	66	90	125	153	165
100	4	0	8	12	55	87	120	165	225	310	380	400
150	6	0	10	58	137	235	310	415	560	745	960	1050
200	8	0	12	115	260	390	570	795	1120	1525	1650	1800
250	10	0	20	145	325	515	795	1155	1590	2125	2890	3150
300	12	0	45	280	550	835	1315	1880	2600	3590	4570	4750
350	14	0	90	430	750	1200	1580	2250	3100	4300	5100	5200
400	16	0	150	620	1030	1500	2100	2950	4050	5450	6750	6900
450	18	0	280	780	1350	2100	2790	4000	5450	7350	8900	9300
500	20	0	340	870	1550	2510	3250	4800	6550	8250	10600	11300
600	24	0	400	1020	1920	2960	4300	6200	9000	12700	17400	18500
750	30	0	876	2240	3992	6464	8369	12361	16868	21246	27297	29100
900	36	0	1429	3657	6515	10551	13662	20177	27533	34679	44558	47500

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
65	2.5	0	0.145	0.151	0.18	0.208	0.231	0.246	0.26	0.277	0.291	0.31
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
750	30	0	0.118	0.137	0.167	0.202	0.241	0.282	0.322	0.355	0.377	0.396
900	36	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
65	2.5	0	0.87	0.86	0.85	0.84	0.83	0.82	0.8	0.79	0.77	0.76
80	3	0	0.87	0.86	0.85	0.83	0.82	0.8	0.78	0.74	0.71	0.7
100	4	0	0.87	0.86	0.83	0.81	0.8	0.78	0.74	0.69	0.66	0.65
150	6	0	0.87	0.85	0.83	0.81	0.79	0.77	0.73	0.68	0.64	0.62
200	8	0	0.87	0.85	0.83	0.81	0.79	0.76	0.71	0.66	0.64	0.63
250	10	0	0.87	0.86	0.84	0.82	0.8	0.77	0.72	0.68	0.62	0.6
300	12	0	0.87	0.85	0.83	0.81	0.79	0.75	0.7	0.65	0.6	0.58
350	14	0	0.87	0.85	0.83	0.81	0.8	0.77	0.72	0.67	0.64	0.64
400	16	0	0.87	0.84	0.83	0.81	0.8	0.77	0.72	0.68	0.64	0.64
450	18	0	0.86	0.85	0.83	0.81	0.79	0.76	0.71	0.67	0.63	0.62
500	20	0	0.86	0.85	0.83	0.81	0.8	0.76	0.72	0.68	0.64	0.63
600	24	0	0.87	0.85	0.84	0.82	0.8	0.77	0.72	0.67	0.61	0.59
750	30	0	0.87	0.85	0.84	0.82	0.8	0.77	0.72	0.67	0.61	0.59
900	36	0	0.87	0.85	0.84	0.82	0.8	0.77	0.72	0.67	0.61	0.59

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
65	2.5	0	0.68	0.68	0.68	0.68	0.67	0.66	0.63	0.6	0.57	0.55
80	3	0	0.68	0.68	0.68	0.67	0.66	0.63	0.59	0.53	0.47	0.45
100	4	0	0.68	0.68	0.67	0.65	0.62	0.58	0.52	0.44	0.41	0.4
150	6	0	0.68	0.68	0.67	0.64	0.61	0.56	0.5	0.43	0.39	0.39
200	8	0	0.68	0.68	0.67	0.65	0.6	0.55	0.46	0.41	0.4	0.39
250	10	0	0.68	0.68	0.67	0.66	0.62	0.56	0.49	0.43	0.39	0.38
300	12	0	0.68	0.68	0.67	0.65	0.6	0.54	0.45	0.4	0.38	0.37
350	14	0	0.68	0.68	0.67	0.65	0.62	0.56	0.49	0.42	0.4	0.4
400	16	0	0.68	0.68	0.67	0.65	0.61	0.56	0.49	0.43	0.4	0.39
450	18	0	0.68	0.68	0.67	0.64	0.61	0.55	0.47	0.42	0.39	0.39
500	20	0	0.68	0.68	0.67	0.64	0.62	0.56	0.48	0.43	0.4	0.39
600	24	0	0.68	0.68	0.67	0.66	0.62	0.58	0.49	0.42	0.38	0.38
750	30	0	0.68	0.68	0.67	0.66	0.62	0.58	0.49	0.42	0.38	0.38
900	36	0	0.68	0.68	0.67	0.66	0.62	0.58	0.49	0.42	0.38	0.38

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
65	2.5	0	0.37	0.37	0.35	0.34	0.32	0.3	0.28	0.27	0.26	0.25
80	3	0	0.38	0.36	0.34	0.31	0.3	0.28	0.27	0.25	0.23	0.23
100	4	0	0.38	0.37	0.32	0.29	0.28	0.26	0.25	0.22	0.21	0.2
150	6	0	0.38	0.36	0.31	0.29	0.27	0.26	0.24	0.22	0.19	0.19
200	8	0	0.38	0.35	0.31	0.29	0.27	0.25	0.23	0.2	0.2	0.19
250	10	0	0.38	0.36	0.32	0.3	0.28	0.26	0.24	0.22	0.19	0.18
300	12	0	0.38	0.35	0.31	0.29	0.27	0.25	0.23	0.2	0.18	0.17
350	14	0	0.38	0.34	0.31	0.29	0.28	0.26	0.24	0.21	0.2	0.2
400	16	0	0.37	0.34	0.31	0.29	0.28	0.26	0.24	0.22	0.2	0.19
450	18	0	0.37	0.34	0.31	0.29	0.27	0.25	0.23	0.21	0.19	0.19
500	20	0	0.37	0.35	0.31	0.29	0.28	0.26	0.24	0.22	0.2	0.19
600	24	0	0.37	0.35	0.32	0.3	0.28	0.26	0.24	0.21	0.18	0.18
750	30	0	0.37	0.35	0.32	0.3	0.28	0.26	0.24	0.21	0.18	0.18
900	36	0	0.37	0.35	0.32	0.3	0.28	0.26	0.24	0.21	0.18	0.18

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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