Cv-values: L800ANSI150FTC1

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Series	Code	Description
LG Model D	L800ANSI150FTC1	SERIES LG HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME150 & PN10-16, THROUGH SHAFT DESIGN

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Technical bulletin

Neles™ Neldisc™ Model D is a metal seated triple eccentric high performance butterfly valve that provides long lasting tight shut-off with excellent flow characteristics and high capacity. The L-Series are widely used in pulp & paper, chemical, petrochemical and refining industries. With nearly equal percentage characteristics and superior tightness, Neldisc triple eccentric butterfly valves operate both in control and tight shutoff applications. As a result of the unique triple offset geometry of Neldisc, the contact between disc and seat is mechanically induced and does not rely on assistance from differential pressure. This design also provides extended operational life in control, high cycle, high temperature and abrasive applications. Due to a number of special constructions, developed from the versatile Neldisc design, these valves offer a powerful tool for standardization and are truly high performance valves. The Neldisc high-performance butterfly valve is available in double flange (L6), wafer (LW) and lug (LG) body types with a range of materials and seat combinations suitable for service in a wide variety of applications including NACE MR0103 & MR0175.

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	15.6	39	62.4	85.3	111	142	165	195	213	220
100	4	0	25	53.6	78.5	107	139	182	232	293	346	357
150	6	0	86.8	136	205	298	409	558	744	1000	1200	1240
200	8	0	139	219	328	478	657	896	1190	1610	1930	1990
250	10	0	243	382	573	833	1150	1560	2080	2810	3370	3470
300	12	0	372	585	878	1280	1760	2390	3190	4310	5160	5320
350	14	0	377	754	1091	1522	2095	2845	3801	4960	5879	6110
400	16	0	487	965	1387	1976	2735	3725	4964	6526	7893	8180
450	18	0	641	1227	1796	2500	3467	4765	6435	8467	10439	10900
500	20	0	809	1507	2177	3082	4276	5842	7850	10395	12801	13400
600	24	0	1148	2119	3034	4387	6060	8242	11113	14479	17382	18800

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	0.128	0.151	0.187	0.22	0.256	0.291	0.315	0.339	0.364	0.383
100	4	0	0.128	0.151	0.187	0.22	0.256	0.288	0.313	0.335	0.359	0.376
150	6	0	0.095	0.126	0.159	0.195	0.235	0.279	0.322	0.356	0.383	0.405
200	8	0	0.098	0.128	0.16	0.196	0.236	0.28	0.323	0.36	0.389	0.41
250	10	0	0.087	0.12	0.153	0.191	0.233	0.278	0.322	0.361	0.39	0.413
300	12	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413
350	14	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413
400	16	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413
450	18	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413
500	20	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413
600	24	0	0.086	0.119	0.152	0.19	0.232	0.278	0.322	0.361	0.39	0.413

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	0.83	0.81	0.8	0.77	0.73	0.7	0.66	0.63	0.6	0.58
100	4	0	0.83	0.81	0.8	0.77	0.73	0.7	0.66	0.63	0.6	0.58
150	6	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
200	8	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
250	10	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
300	12	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
350	14	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
400	16	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
450	18	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
500	20	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	0.45
600	24	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.5	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	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
100	4	0	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
150	6	0	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
200	8	0	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
250	10	0	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
300	12	0	0.55	0.54	0.52	0.5	0.46	0.4	0.32	0.21	0.16	0.14
350	14	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
400	16	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
450	18	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
500	20	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
600	24	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19

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	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
100	4	0	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
150	6	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
200	8	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
250	10	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
300	12	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
350	14	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
400	16	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
450	18	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
500	20	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15
600	24	0	0.4	0.36	0.33	0.3	0.28	0.25	0.22	0.2	0.17	0.15

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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