Cv-values: E

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Series	Code	Description
E	E	NELES SEAT SUPPORTED CERAMIC BALL VALVE

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IMO

Technical bulletin

E2 & E6 series valve is designed for the most erosive/abrasive applications. The zirconia oxide ceramic (PSZ) is most suitable for handling slurries' flow control. Low flow applications can be handled with an optional low Cv -trim. Lug-style body construction is also available. E series valves are available in sizes DN 25...200 (1"...8") in pressure classes DIN PN 10...40 and ANSI 150 and 300.

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.369	0.943	1.68	2.83	4.51	6.77	10.2	15.9	27.6	61
25	1	1	0.295	0.754	1.34	2.25	3.41	5.09	7.73	11.14	13.84	15.9
25	1	2	0.153	0.408	0.689	1.05	1.43	1.94	2.47	3.26	4.21	5.1
25	1	3	0.075	0.2	0.338	0.515	0.701	0.951	1.211	1.598	2.06	2.5
40	1.5	0	0.945	2.42	4.31	7.25	11.6	17.3	26	39.8	66	160
50	2	0	1.53	3.91	6.97	11.7	18.7	28.1	42.1	64.4	107	240
80	3	0	4.05	10.4	18.5	31.1	49.5	74.3	111.5	171	287	640
100	4	0	5.85	15	26.7	44.9	71.5	107	161	245	404	800
150	6	0	14	37	68	111	164	230	320	438	618	1000
200	8	0	21	57	105	173	254	357	495	679	957	1550

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.528	0.702	0.805	0.875	0.924	0.957	0.979	0.992	0.998	1
25	1	1	0.83	0.805	0.755	0.763	0.799	0.84	0.871	0.886	0.878	0.791
25	1	2	0.651	0.615	0.609	0.631	0.655	0.679	0.711	0.765	0.839	0.895
25	1	3	0.426	0.431	0.442	0.458	0.482	0.517	0.566	0.63	0.719	0.843
40	1.5	0	0.528	0.702	0.805	0.875	0.924	0.957	0.979	0.992	0.998	1
50	2	0	0.528	0.702	0.805	0.875	0.924	0.957	0.979	0.992	0.998	1
80	3	0	0.528	0.702	0.805	0.875	0.924	0.957	0.979	0.992	0.998	1
100	4	0	0.464	0.675	0.788	0.865	0.919	0.955	0.978	0.992	0.998	1
150	6	0	0.451	0.67	0.785	0.864	0.918	0.954	0.978	0.992	0.998	1
200	8	0	0.478	0.676	0.788	0.866	0.919	0.955	0.978	0.992	0.998	1

F_L-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.91	0.91	0.91	0.9	0.89	0.86	0.83	0.78	0.7	0.49
25	1	1	0.91	0.91	0.91	0.9	0.89	0.88	0.85	0.81	0.79	0.78
25	1	2	0.91	0.91	0.91	0.91	0.91	0.9	0.9	0.9	0.89	0.88
25	1	3	0.91	0.91	0.91	0.91	0.91	0.91	0.91	0.91	0.9	0.9
40	1.5	0	0.91	0.91	0.9	0.9	0.88	0.85	0.81	0.76	0.69	0.42
50	2	0	0.91	0.91	0.91	0.9	0.88	0.86	0.82	0.78	0.71	0.5
80	3	0	0.91	0.91	0.9	0.89	0.88	0.85	0.8	0.76	0.68	0.42
100	4	0	0.91	0.91	0.91	0.9	0.89	0.86	0.83	0.78	0.71	0.57
150	6	0	0.91	0.91	0.9	0.9	0.89	0.87	0.84	0.81	0.77	0.7
200	8	0	0.91	0.91	0.91	0.9	0.89	0.88	0.85	0.82	0.78	0.72

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.82	0.82	0.82	0.8	0.77	0.71	0.62	0.51	0.36	0.16
25	1	1	0.82	0.82	0.82	0.81	0.79	0.76	0.68	0.6	0.55	0.51
25	1	2	0.82	0.82	0.82	0.82	0.82	0.81	0.81	0.8	0.78	0.75
25	1	3	0.82	0.82	0.82	0.82	0.82	0.82	0.82	0.82	0.81	0.81
40	1.5	0	0.82	0.82	0.81	0.8	0.75	0.69	0.59	0.48	0.34	0.11
50	2	0	0.82	0.82	0.82	0.8	0.77	0.7	0.62	0.5	0.36	0.17
80	3	0	0.82	0.82	0.81	0.79	0.74	0.67	0.57	0.46	0.32	0.11
100	4	0	0.82	0.82	0.82	0.8	0.77	0.71	0.63	0.52	0.38	0.22
150	6	0	0.82	0.82	0.81	0.8	0.77	0.72	0.66	0.58	0.49	0.36
200	8	0	0.82	0.82	0.82	0.81	0.78	0.74	0.68	0.61	0.53	0.39

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.52	0.52	0.51	0.48	0.44	0.39	0.33	0.26	0.18	0.09
25	1	1	0.52	0.52	0.51	0.5	0.47	0.43	0.37	0.32	0.28	0.26
25	1	2	0.52	0.52	0.52	0.52	0.51	0.5	0.49	0.47	0.45	0.43
25	1	3	0.52	0.52	0.52	0.52	0.52	0.52	0.52	0.51	0.5	0.49
40	1.5	0	0.52	0.52	0.5	0.47	0.43	0.37	0.31	0.24	0.18	0.07
50	2	0	0.52	0.52	0.51	0.48	0.44	0.38	0.33	0.26	0.19	0.09
80	3	0	0.52	0.52	0.5	0.47	0.42	0.36	0.3	0.24	0.17	0.07
100	4	0	0.52	0.52	0.51	0.48	0.44	0.39	0.33	0.27	0.19	0.12
150	6	0	0.52	0.52	0.5	0.48	0.44	0.4	0.35	0.3	0.25	0.18
200	8	0	0.52	0.52	0.51	0.48	0.46	0.42	0.37	0.32	0.27	0.2

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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