Cv-values: QLMD1

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Series	Code	Description
XH	QLMD1	NELES TRUNNION MOUNTING BALL VALVE SERIES XH, CLASS 600, WITH QLM-TRIM VARIANT (QLM)

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IMO

Technical bulletin

High pressure ball valve, Q-XHF, for demanding medium and high pressure control services. The valve features an unsurpassed control stability, wide rangeability and tight shut-off with all-metal seats. This valve with noise/cavitation abatement Q-Trim™ enables effective source treatment, while providing very wide flow range, stability and insensitivity to impure fluids. Suitable for liquid, gas, steam and slurry applications. Variety of seat constructions, materials and other special features are offered. Pressure rating ASME 600, size range DN150...600 (6"...24").

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
50	2	0	0.85	2.16	4.24	7.31	11	15.6	23.5	36.6	63.6	80
80	3	0	2.11	5.4	10.6	18.3	27.5	39	58.7	91.4	159	200
100	4	0	4.07	10.4	20.4	35.2	52.9	75	113	176	306	385
150	6	0	10.3	26.3	51.7	89	134	190	288	447	780	990
200	8	0	18	45.9	90	156	235	331	502	779	1356	1710
250	10	0	29	74	145	251	378	533	808	1250	2191	2760
300	12	0	41.7	106	208	360	542	766	1160	1800	3133	3950
350	14	0	53.1	135	265	459	691	976	1480	2290	3981	5000
400	16	0	72.4	184	362	625	941	1330	2010	3130	5434	6840
450	18	0	90.5	230	453	782	1180	1660	2520	3910	6790	8540
500	20	0	112	286	561	969	1460	2060	3120	4850	8406	10600
600	24	0	168	428	842	1450	2190	3090	4680	7270	12610	15910
700	28	0	224	571	1120	1940	2920	4120	6240	9690	16796	21200

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
50	2	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
80	3	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
100	4	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
150	6	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
200	8	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
250	10	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
300	12	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
350	14	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
400	16	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
450	18	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
500	20	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
600	24	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
700	28	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205

F_L-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
50	2	0	0.97	0.97	0.97	0.97	0.97	0.95	0.92	0.89	0.81	0.77
80	3	0	0.97	0.97	0.97	0.97	0.96	0.94	0.92	0.87	0.79	0.74
100	4	0	0.97	0.97	0.97	0.97	0.96	0.94	0.91	0.86	0.78	0.71
150	6	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.84	0.75	0.65
200	8	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.85	0.76	0.67
250	10	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.84	0.75	0.65
300	12	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.84	0.75	0.65
350	14	0	0.97	0.97	0.97	0.97	0.95	0.93	0.91	0.85	0.77	0.69
400	16	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.85	0.76	0.67
450	18	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.85	0.76	0.67
500	20	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.85	0.76	0.67
600	24	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.84	0.75	0.65
700	28	0	0.97	0.97	0.97	0.97	0.95	0.93	0.9	0.84	0.76	0.66

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
50	2	0	0.82	0.83	0.83	0.83	0.81	0.79	0.69	0.53	0.37	0.33
80	3	0	0.82	0.83	0.83	0.82	0.81	0.77	0.66	0.5	0.35	0.3
100	4	0	0.82	0.83	0.83	0.82	0.8	0.75	0.63	0.47	0.34	0.28
150	6	0	0.82	0.83	0.83	0.82	0.79	0.72	0.58	0.42	0.31	0.25
200	8	0	0.82	0.83	0.83	0.82	0.79	0.73	0.59	0.43	0.31	0.26
250	10	0	0.82	0.83	0.83	0.82	0.79	0.72	0.57	0.41	0.3	0.25
300	12	0	0.82	0.83	0.83	0.82	0.79	0.72	0.57	0.41	0.31	0.25
350	14	0	0.82	0.83	0.83	0.82	0.8	0.74	0.6	0.44	0.32	0.27
400	16	0	0.82	0.83	0.83	0.82	0.79	0.73	0.58	0.42	0.31	0.26
450	18	0	0.82	0.83	0.83	0.82	0.79	0.73	0.59	0.43	0.31	0.26
500	20	0	0.82	0.83	0.83	0.82	0.79	0.73	0.59	0.43	0.31	0.26
600	24	0	0.82	0.83	0.83	0.82	0.79	0.72	0.57	0.41	0.3	0.25
700	28	0	0.82	0.83	0.83	0.82	0.79	0.72	0.58	0.42	0.31	0.26

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
50	2	0	0.6	0.6	0.6	0.59	0.58	0.56	0.52	0.46	0.38	0.34
80	3	0	0.6	0.6	0.6	0.59	0.57	0.55	0.5	0.44	0.36	0.32
100	4	0	0.6	0.6	0.6	0.59	0.57	0.54	0.49	0.43	0.35	0.31
150	6	0	0.6	0.6	0.6	0.58	0.56	0.53	0.47	0.41	0.33	0.28
200	8	0	0.6	0.6	0.6	0.58	0.56	0.53	0.48	0.42	0.33	0.29
250	10	0	0.6	0.6	0.6	0.58	0.56	0.53	0.47	0.41	0.33	0.28
300	12	0	0.6	0.6	0.6	0.58	0.56	0.53	0.47	0.41	0.33	0.28
350	14	0	0.6	0.6	0.6	0.58	0.56	0.54	0.48	0.42	0.34	0.3
400	16	0	0.6	0.6	0.6	0.58	0.56	0.53	0.48	0.42	0.33	0.29
450	18	0	0.6	0.6	0.6	0.58	0.56	0.53	0.48	0.42	0.33	0.29
500	20	0	0.6	0.6	0.6	0.58	0.56	0.53	0.48	0.42	0.33	0.29
600	24	0	0.6	0.6	0.6	0.58	0.56	0.53	0.47	0.41	0.33	0.28
700	28	0	0.6	0.6	0.6	0.58	0.56	0.53	0.47	0.41	0.33	0.28

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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