Cv-values: QT5G

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Series	Code	Description
T5	QT5G	NELES TRUNNION MOUNTED BALL VALVE SERIES T5G, CLASS 900, REDUCED BORE, WITH Q-TRIM VARIANT (Q-TRIM)

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IMO

Technical bulletin

Top entry rotary valve for demanding medium and high pressure control services. 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 and steam applications. Variety of seat constructions, bonnet extensions, materials and other special features are offered. Size range DN80...300 (3"...12").

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	2.38	5.18	8.4	11.9	16.5	21.9	29.1	39.2	52.8	70
80	3	1	1.25	2.12	3.16	4.16	5.29	6.84	8.84	11.8	16.5	20
100	4	0	6.12	13.3	21.6	31.4	43.5	57.4	76.1	104	141	180
100	4	1	2.81	4.78	7.1	9.35	11.9	15.4	19.9	26.5	37.2	45
150	6	0	9.52	20.7	33.6	47.6	66	92.1	127	170	235	300
150	6	1	4.99	8.5	12.6	16.6	21.2	27.4	35.4	47.1	66.1	80
200	8	0	17	49.9	86.4	131	186	247	342	463	592	740
250	10	0	31.9	93.8	162	245	349	464	642	869	1112	1390
300	12	0	52.4	154	266	402	573	762	1053	1427	1824	2280

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	0.325	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
150	6	1	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
250	10	0	0.325	0.331	0.337	0.343	0.348	0.354	0.36	0.366	0.372	0.378
300	12	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
80	3	0	0.93	0.93	0.93	0.93	0.93	0.93	0.92	0.89	0.85	0.8
80	3	1	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93
100	4	0	0.93	0.93	0.93	0.93	0.93	0.92	0.88	0.83	0.77	0.69
100	4	1	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93
150	6	0	0.93	0.93	0.93	0.93	0.93	0.93	0.92	0.88	0.83	0.78
150	6	1	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93
200	8	0	0.93	0.93	0.93	0.93	0.93	0.91	0.86	0.81	0.76	0.68
250	10	0	0.93	0.93	0.93	0.93	0.92	0.88	0.83	0.77	0.7	0.61
300	12	0	0.93	0.93	0.93	0.93	0.91	0.86	0.81	0.74	0.65	0.55

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	0.84	0.84	0.85	0.85	0.85	0.85	0.82	0.75	0.67	0.57
80	3	1	0.84	0.84	0.84	0.84	0.84	0.85	0.85	0.85	0.85	0.85
100	4	0	0.84	0.85	0.85	0.85	0.85	0.8	0.72	0.64	0.52	0.36
100	4	1	0.84	0.84	0.84	0.84	0.85	0.85	0.85	0.85	0.85	0.84
150	6	0	0.84	0.84	0.85	0.85	0.85	0.85	0.8	0.72	0.64	0.54
150	6	1	0.84	0.84	0.84	0.84	0.84	0.85	0.85	0.85	0.85	0.85
200	8	0	0.84	0.85	0.85	0.85	0.84	0.78	0.69	0.6	0.49	0.34
250	10	0	0.84	0.85	0.85	0.85	0.81	0.73	0.64	0.53	0.37	0.2
300	12	0	0.84	0.85	0.85	0.85	0.77	0.7	0.6	0.45	0.27	0.17

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	0.55	0.55	0.55	0.54	0.53	0.52	0.51	0.49	0.47	0.44
80	3	1	0.55	0.55	0.55	0.55	0.55	0.55	0.55	0.54	0.53	0.53
100	4	0	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.46	0.42	0.38
100	4	1	0.55	0.55	0.55	0.55	0.55	0.55	0.54	0.53	0.53	0.52
150	6	0	0.55	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.46	0.43
150	6	1	0.55	0.55	0.55	0.55	0.55	0.55	0.55	0.54	0.53	0.53
200	8	0	0.55	0.55	0.54	0.53	0.52	0.5	0.47	0.45	0.41	0.37
250	10	0	0.55	0.55	0.54	0.52	0.51	0.48	0.46	0.42	0.38	0.33
300	12	0	0.55	0.55	0.53	0.52	0.5	0.47	0.45	0.4	0.35	0.3

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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