Cv-values: Q-XHG

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Series	Code	Description
XH	Q-XHG	NELES TRUNNION MOUNTING BALL VALVE SERIES XH, CLASS 900, WITH Q-TRIM VARIANT (Q-TRIM)

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IMO

Technical bulletin

High pressure ball valve, Q-XH, 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 ANSI 900, size range DN50...200 (2"...8").

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	2.38	5.18	8.4	11.9	16.5	21.9	29.1	39.2	52.8	70
50	2	1	1.25	2.12	3.16	4.16	5.29	6.84	8.84	11.8	16.5	20
80	3	0	6.12	13.3	21.6	31.4	43.5	57.4	76.1	104	141	180
80	3	1	2.81	4.78	7.1	9.35	11.9	15.4	19.9	26.5	37.2	45
100	4	0	9.52	20.7	33.6	47.6	66	92.1	127	170	235	300
100	4	1	4.99	8.5	12.6	16.6	21.2	27.4	35.4	47.1	66.1	80
150	6	0	16.4	39	63.7	96.5	141	200	288	403	570	760
200	8	0	32.4	77	126	191	278	395	569	795	1125	1500

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	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
50	2	1	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
80	3	0	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
80	3	1	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
100	4	0	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
100	4	1	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
150	6	0	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
200	8	0	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378

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	0.91	0.92	0.93	0.93	0.93	0.92	0.9	0.87	0.82	0.75
50	2	1	0.91	0.91	0.91	0.92	0.92	0.92	0.93	0.93	0.93	0.92
80	3	0	0.91	0.92	0.93	0.93	0.92	0.91	0.89	0.85	0.78	0.72
80	3	1	0.91	0.91	0.91	0.92	0.92	0.92	0.93	0.93	0.93	0.92
100	4	0	0.91	0.92	0.93	0.93	0.93	0.91	0.89	0.86	0.8	0.74
100	4	1	0.91	0.91	0.91	0.92	0.92	0.92	0.93	0.93	0.93	0.92
150	6	0	0.91	0.92	0.92	0.93	0.93	0.91	0.89	0.86	0.78	0.7
200	8	0	0.91	0.92	0.93	0.93	0.92	0.91	0.88	0.84	0.75	0.67

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	0.82	0.81	0.78	0.71	0.59	0.48	0.37
50	2	1	0.82	0.82	0.82	0.83	0.83	0.83	0.83	0.82	0.81	0.79
80	3	0	0.82	0.83	0.83	0.82	0.79	0.75	0.66	0.53	0.4	0.34
80	3	1	0.82	0.82	0.82	0.83	0.83	0.83	0.83	0.82	0.81	0.79
100	4	0	0.82	0.83	0.83	0.82	0.81	0.77	0.68	0.56	0.43	0.36
100	4	1	0.82	0.82	0.82	0.83	0.83	0.83	0.83	0.82	0.81	0.79
150	6	0	0.82	0.83	0.83	0.83	0.81	0.77	0.68	0.54	0.4	0.32
200	8	0	0.82	0.83	0.83	0.82	0.8	0.75	0.64	0.5	0.37	0.29

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	0.56	0.55	0.53	0.52	0.5	0.47	0.45	0.41	0.37	0.33
50	2	1	0.56	0.56	0.56	0.55	0.55	0.54	0.53	0.52	0.5	0.48
80	3	0	0.56	0.55	0.53	0.51	0.48	0.46	0.43	0.39	0.34	0.31
80	3	1	0.56	0.56	0.56	0.55	0.55	0.54	0.53	0.52	0.5	0.48
100	4	0	0.56	0.55	0.53	0.52	0.5	0.47	0.44	0.4	0.35	0.32
100	4	1	0.56	0.56	0.56	0.55	0.55	0.54	0.53	0.52	0.5	0.48
150	6	0	0.56	0.55	0.54	0.52	0.5	0.47	0.44	0.39	0.34	0.3
200	8	0	0.56	0.55	0.54	0.52	0.49	0.46	0.42	0.38	0.33	0.29

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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