Cv-values: QLMXM

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Series	Code	Description
XM	QLMXM	NELES TRUNNION MOUNTED BALL VALVE SERIES XM, WITH QLM TRIM VARIANT (QLM)

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IMO

Technical bulletin

The QLM-Trim concept is also available in XM valves, this QLM-Ball valve is intended for low and medium pressure applications for wider control range for liquid service due to added small opening segment. The QLM-XM has bi-directional tightness with 2 seated configuration. QLM-XM is available in sizes DN 100...600 (2"...24") in pressure classes ANSI 300 and EN PN 40.

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
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

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
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

F_L-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
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

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
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

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
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

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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