Cv-values: QAT5

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Series	Code	Description
T5	QAT5	NELES TRUNNION MOUNTED BALL VALVE SERIES TOP5 (T5), CLASS 150-600, REDUCED BORE, WITH Q-TRIM VARIANT AND ADDITIONAL ATTENUATOR PLATE IN BODY (QA)

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IMO

Technical bulletin

Q-Top5 valve fitted valve outlet attenuator. This option extends the performance of Q-Top5 into higher pressure drop ratios and improves aerodynamic noise attenuation. Suitable for controlling gases and steam. Variety of seat constructions, bonnet extensions, materials and other special features are offered. Size range DN50...400 (2"...16"). Standard temperature range -200 ... +450 °C. The face-to-face length of QA-Top5 equals to IEC/ISA globe valve length. Sizes DN 50...150 (2"...6") feature an advanced multi-channel Q-Trim design (QX). Sizes DN 200 (8") and above employ the classic stacked plate Q-Trim (Q). Flanged or butt weld ends ANSI 300 and 600; and DIN PN 40, 64 and 100.

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	1.43	3.09	4.98	6.96	9.04	11.5	15	18.1	21.6	25
80	3	0	2.38	5.17	8.34	11.7	16.1	20.9	26.9	34.2	42.2	49.5
100	4	0	6.11	13.2	21.3	30.4	41	52.1	64.9	79.7	93.1	102
150	6	0	9.51	20.6	33.4	46.9	64.2	87.5	116	145	180	205
200	8	0	10.8	31.6	54.6	81.8	115	150	199	253	300	342
250	10	0	17	49.8	85.7	129	180	233	307	386	452	509
300	12	0	31.9	93.5	160	239	333	429	557	687	789	872
350	14	0	52.4	153	262	389	536	682	866	1042	1170	1267
400	16	0	52.4	154	264	394	551	712	931	1160	1345	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	0.18	0.18	0.18	0.18	0.18	0.18	0.18	0.18	0.18	0.18
80	3	0	0.128	0.128	0.128	0.128	0.128	0.128	0.128	0.128	0.128	0.128
100	4	0	0.091	0.091	0.091	0.091	0.091	0.091	0.091	0.091	0.091	0.091
150	6	0	0.076	0.076	0.076	0.076	0.076	0.076	0.076	0.076	0.076	0.076
200	8	0	0.049	0.049	0.049	0.049	0.049	0.049	0.049	0.049	0.049	0.049
250	10	0	0.038	0.038	0.038	0.038	0.038	0.038	0.038	0.038	0.038	0.038
300	12	0	0.032	0.032	0.032	0.032	0.032	0.032	0.032	0.032	0.032	0.032
350	14	0	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03
400	16	0	0.024	0.024	0.024	0.024	0.024	0.024	0.024	0.024	0.024	0.024

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	0.93	0.93	0.93	0.93	0.93	0.92	0.87	0.82	0.74	0.62
80	3	0	0.93	0.93	0.93	0.93	0.93	0.93	0.92	0.87	0.81	0.72
100	4	0	0.93	0.93	0.93	0.93	0.93	0.9	0.85	0.78	0.68	0.61
150	6	0	0.93	0.93	0.93	0.93	0.93	0.93	0.9	0.85	0.78	0.7
200	8	0	0.93	0.93	0.93	0.93	0.93	0.93	0.91	0.86	0.81	0.74
250	10	0	0.93	0.93	0.93	0.93	0.93	0.93	0.91	0.86	0.82	0.77
300	12	0	0.93	0.93	0.93	0.93	0.93	0.92	0.86	0.8	0.72	0.65
350	14	0	0.93	0.93	0.93	0.93	0.92	0.89	0.83	0.75	0.66	0.59
400	16	0	0.93	0.93	0.93	0.93	0.93	0.92	0.88	0.82	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	0.87	0.87	0.87	0.86	0.81	0.75	0.65	0.56	0.45	0.33
80	3	0	0.87	0.87	0.87	0.87	0.86	0.81	0.74	0.65	0.54	0.43
100	4	0	0.87	0.87	0.87	0.85	0.78	0.71	0.62	0.5	0.39	0.32
150	6	0	0.87	0.87	0.87	0.87	0.86	0.79	0.71	0.62	0.5	0.41
200	8	0	0.87	0.87	0.87	0.87	0.86	0.8	0.72	0.63	0.54	0.45
250	10	0	0.87	0.87	0.87	0.87	0.86	0.8	0.73	0.64	0.56	0.49
300	12	0	0.87	0.87	0.87	0.86	0.81	0.74	0.64	0.53	0.43	0.36
350	14	0	0.87	0.87	0.87	0.84	0.76	0.68	0.57	0.46	0.37	0.3
400	16	0	0.87	0.87	0.87	0.87	0.82	0.76	0.66	0.56	0.46	0.38

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	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.45	0.4	0.35
80	3	0	0.55	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.45	0.4
100	4	0	0.55	0.55	0.54	0.53	0.52	0.5	0.47	0.43	0.37	0.34
150	6	0	0.55	0.55	0.55	0.54	0.53	0.52	0.5	0.47	0.43	0.38
200	8	0	0.55	0.55	0.55	0.54	0.53	0.52	0.5	0.47	0.45	0.41
250	10	0	0.55	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.45	0.42
300	12	0	0.55	0.55	0.54	0.53	0.52	0.51	0.48	0.44	0.4	0.36
350	14	0	0.55	0.55	0.54	0.53	0.51	0.49	0.46	0.41	0.36	0.33
400	16	0	0.55	0.55	0.55	0.54	0.52	0.51	0.48	0.45	0.41	0.37

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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