Cv-values: T2H

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Series	Code	Description
T2	T2H	NELES TRUNNION MOUNTED BALL VALVE SERIES T2, CLASS 1500

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IMO

Technical bulletin

Top entry rotary valve for medium and high pressure control and on-off services. The valve features an unsurpassed control stability, wide rangeability and tight shut-off with all-metal seats. In T2 design the flow area has been maximized. Suitable for liquid, gas, steam and slurry applications. Variety of seat constructions, bonnet extensions, materials and other special features are offered. Size range DN25...300 (1"...12").

C_v-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.676	1.51	2.81	4.89	7.7	11.5	17	26	46.6	105
50	2	0	2.48	5.4	10.1	17.8	27.9	42.5	70.8	123	224	480
80	3	0	5.45	14.5	27.2	45.4	69.4	100	162	282	513	1100
100	4	0	9.72	25.9	48.6	81	124	179	313	545	989	2120
150	6	0	22.4	59.8	112	187	286	413	757	1318	2394	5100
200	8	0	39.7	106	199	331	506	732	1386	2413	4381	9300
250	10	0	60.7	162	304	506	774	1122	2170	3778	6859	14700
300	12	0	92.5	246	463	771	1179	1710	3307	5756	10451	22400

C_v/d²-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.528	0.702	0.805	0.875	0.924	0.957	0.979	0.992	0.998	1
50	2	0	0.658	0.762	0.841	0.897	0.937	0.965	0.982	0.993	0.998	1
80	3	0	0.464	0.675	0.788	0.865	0.919	0.955	0.978	0.991	0.998	1
100	4	0	0.451	0.67	0.785	0.864	0.918	0.954	0.978	0.991	0.998	1
150	6	0	0.468	0.673	0.786	0.864	0.919	0.955	0.978	0.991	0.998	1
200	8	0	0.563	0.712	0.809	0.879	0.927	0.96	0.98	0.992	0.998	1
250	10	0	0.574	0.717	0.813	0.881	0.928	0.96	0.981	0.993	0.998	1
300	12	0	0.574	0.717	0.813	0.881	0.928	0.96	0.981	0.993	0.998	1

F_L-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.91	0.91	0.9	0.88	0.86	0.81	0.77	0.71	0.61	0.43
50	2	0	0.91	0.91	0.9	0.89	0.86	0.82	0.76	0.68	0.57	0.38
80	3	0	0.91	0.91	0.9	0.88	0.86	0.82	0.76	0.68	0.57	0.38
100	4	0	0.91	0.91	0.9	0.88	0.86	0.82	0.75	0.67	0.55	0.35
150	6	0	0.91	0.91	0.9	0.88	0.85	0.81	0.74	0.66	0.54	0.32
200	8	0	0.91	0.91	0.9	0.88	0.85	0.81	0.73	0.65	0.53	0.31
250	10	0	0.91	0.91	0.9	0.88	0.86	0.82	0.73	0.65	0.53	0.31
300	12	0	0.91	0.91	0.9	0.88	0.85	0.81	0.73	0.64	0.52	0.28

X_T-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.82	0.82	0.8	0.76	0.69	0.6	0.48	0.37	0.24	0.12
50	2	0	0.82	0.82	0.81	0.77	0.7	0.62	0.47	0.32	0.19	0.1
80	3	0	0.82	0.82	0.8	0.76	0.69	0.6	0.46	0.32	0.19	0.1
100	4	0	0.82	0.82	0.8	0.75	0.68	0.6	0.43	0.3	0.18	0.08
150	6	0	0.82	0.82	0.8	0.75	0.68	0.6	0.41	0.28	0.18	0.07
200	8	0	0.82	0.82	0.8	0.75	0.68	0.6	0.41	0.28	0.17	0.06
250	10	0	0.82	0.82	0.8	0.76	0.68	0.6	0.41	0.28	0.17	0.06
300	12	0	0.82	0.82	0.8	0.75	0.67	0.59	0.39	0.27	0.17	0.05

z-values

SIZE			Relative opening h
DN	INCH	RN	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
RN = Reduction Number
25	1	0	0.52	0.51	0.48	0.43	0.37	0.31	0.25	0.19	0.12	0.08
50	2	0	0.52	0.51	0.48	0.44	0.39	0.32	0.24	0.17	0.09	0.07
80	3	0	0.52	0.51	0.47	0.43	0.37	0.31	0.24	0.17	0.09	0.07
100	4	0	0.52	0.51	0.47	0.42	0.37	0.31	0.23	0.16	0.09	0.07
150	6	0	0.52	0.51	0.47	0.42	0.37	0.31	0.22	0.15	0.09	0.06
200	8	0	0.52	0.51	0.47	0.42	0.37	0.31	0.21	0.15	0.09	0.06
250	10	0	0.52	0.51	0.47	0.43	0.37	0.31	0.21	0.15	0.09	0.06
300	12	0	0.52	0.51	0.47	0.42	0.36	0.3	0.21	0.14	0.09	0.06

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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