Cv-values: L800ANSI300FTC1

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Series	Code	Description
L6 Model D	L800ANSI300FTC1	SERIES L6 HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME300 & PN25-40, 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	71.2	153	224	305	397	519	661	834	986	1017
200	8	0	117	251	367	501	651	852	1090	1370	1620	1670
250	10	0	221	473	693	945	1230	1610	2050	2580	3060	3150
300	12	0	284	608	891	1220	1580	2070	2630	3320	3930	4050
350	14	0	393	765	1138	1511	1908	2487	3172	3943	4728	4930
400	16	0	549	1002	1460	1880	2394	3095	3805	4833	5747	6070
450	18	0	695	1305	1890	2529	3362	4297	5511	6913	8483	8730
500	20	0	859	1555	2320	3060	3995	5172	6624	8328	10136	10500
600	24	0	1215	2154	3287	4428	5780	7622	9796	12550	15474	15700

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	0.088	0.124	0.161	0.198	0.239	0.282	0.32	0.35	0.377	0.398
200	8	0	0.088	0.124	0.161	0.199	0.24	0.284	0.32	0.349	0.375	0.396
250	10	0	0.1	0.133	0.168	0.204	0.245	0.288	0.322	0.35	0.376	0.396
300	12	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4
350	14	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4
400	16	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4
450	18	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4
500	20	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4
600	24	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4

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	0.53	0.49
200	8	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
250	10	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
300	12	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
350	14	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
400	16	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
450	18	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
500	20	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49
600	24	0	0.83	0.81	0.8	0.77	0.73	0.7	0.64	0.58	0.53	0.49

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	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
100	4	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
150	6	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
200	8	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
250	10	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
300	12	0	0.5	0.5	0.48	0.45	0.41	0.36	0.31	0.25	0.22	0.19
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	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
200	8	0	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
250	10	0	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
300	12	0	0.41	0.34	0.29	0.26	0.24	0.22	0.2	0.19	0.17	0.16
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