Cv-values: GWAL

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Series	Code	Description
GW	GWAL	NELES GW SERIES GLOBE CONTROL VALVE, 3-WAY, LINEAR

Links:

IMO

Technical bulletin

Series GB globe-cage guided, balanced trim globe valves are economical high-performance control valves designed to provide the best possible control accuracy and wide rangeability. Multi-hole cage design reduces pressure as the flow passes through the holes and it gives good resistance to cavitation on high pressure drop applications. The balancing holes are located in the top of the plug. This trim is suitable for both high and low pressure drop application and is used in the majority of control applications. Temperature limits -29 .. +260 °C with standard bonnet construction. ASME class 150-2500. Many end connection styles available for different applications.

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	0.982	1.962	2.942	3.922	4.902	5.882	6.862	7.842	8.822	10
25	1	1	0.5892	1.1772	1.7652	2.3532	2.9412	3.5292	4.1172	4.7052	5.2932	6
25	1	2	0.3928	0.7848	1.1768	1.5688	1.9608	2.3528	2.7448	3.1368	3.5288	4
25	1	3	0.1964	0.3924	0.5884	0.7844	0.9804	1.1764	1.3724	1.5684	1.7644	2
40	1.5	0	2.1604	4.3164	6.4724	8.6284	10.7844	12.9404	15.0964	17.2524	19.4084	22
40	1.5	1	1.3748	2.7468	4.1188	5.4908	6.8628	8.2348	9.6068	10.9788	12.3508	14
40	1.5	2	0.982	1.962	2.942	3.922	4.902	5.882	6.862	7.842	8.822	10
40	1.5	3	0.5892	1.1772	1.7652	2.3532	2.9412	3.5292	4.1172	4.7052	5.2932	6
50	2	0	3.5352	7.0632	10.5912	14.1192	17.6472	21.1752	24.7032	28.2312	31.7592	36
50	2	1	2.1604	4.3164	6.4724	8.6284	10.7844	12.9404	15.0964	17.2524	19.4084	22
50	2	2	1.3748	2.7468	4.1188	5.4908	6.8628	8.2348	9.6068	10.9788	12.3508	14
50	2	3	0.982	1.962	2.942	3.922	4.902	5.882	6.862	7.842	8.822	10
80	3	0	7.4632	14.9112	22.3592	29.8072	37.2552	44.7032	52.1512	59.5992	67.0472	76
80	3	1	4.5172	9.0252	13.5332	18.0412	22.5492	27.0572	31.5652	36.0732	40.5812	46
80	3	2	2.7496	5.4936	8.2376	10.9816	13.7256	16.4696	19.2136	21.9576	24.7016	28
80	3	3	1.5712	3.1392	4.7072	6.2752	7.8432	9.4112	10.9792	12.5472	14.1152	16
100	4	0	12.3732	24.7212	37.0692	49.4172	61.7652	74.1132	86.4612	98.8092	111.2	126
100	4	1	7.4632	14.9112	22.3592	29.8072	37.2552	44.7032	52.1512	59.5992	67.0472	76
100	4	2	4.5172	9.0252	13.5332	18.0412	22.5492	27.0572	31.5652	36.0732	40.5812	46
100	4	3	2.946	5.886	8.826	11.766	14.706	17.646	20.586	23.526	26.466	30
150	6	0	26.9068	53.7588	80.6108	107.5	134.3	161.2	188	214.9	241.7	274
150	6	1	16.4976	32.9616	49.4256	65.8896	82.3536	98.8176	115.3	131.7	148.2	168
150	6	2	9.82	19.62	29.42	39.22	49.02	58.82	68.62	78.42	88.22	100
150	6	3	6.2848	12.5568	18.8288	25.1008	31.3728	37.6448	43.9168	50.1888	56.4608	64
200	8	0	48.118	96.138	144.2	192.2	240.2	288.2	336.2	384.3	432.3	490
200	8	1	29.46	58.86	88.26	117.7	147.1	176.5	205.9	235.3	264.7	300
200	8	2	17.676	35.316	52.956	70.596	88.236	105.9	123.5	141.2	158.8	180
200	8	3	11.784	23.544	35.304	47.064	58.824	70.584	82.344	94.104	105.9	120
250	10	0	74.632	149.1	223.6	298.1	372.6	447	521.5	596	670.5	760
250	10	1	45.1	90.252	135.3	180.4	225.5	270.6	315.7	360.7	405.8	460
250	10	2	27.46	54.936	82.376	109.8	137.3	164.7	192.1	219.6	247	280
250	10	3	16.68	33.354	50.014	66.674	83.334	99.994	116.7	133.3	150	170

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	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
25	1	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
25	1	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
25	1	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
40	1.5	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
40	1.5	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
40	1.5	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
40	1.5	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
50	2	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
50	2	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
50	2	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
50	2	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
80	3	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
80	3	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
80	3	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
80	3	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
100	4	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
100	4	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
100	4	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
100	4	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
150	6	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
150	6	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
150	6	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
150	6	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
200	8	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
200	8	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
200	8	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
200	8	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25
250	10	0	0.07	0.09	0.12	0.14	0.15	0.17	0.19	0.21	0.25	0.28
250	10	1	0.06	0.08	0.11	0.13	0.14	0.16	0.18	0.2	0.24	0.27
250	10	2	0.05	0.07	0.1	0.12	0.13	0.15	0.17	0.19	0.23	0.26
250	10	3	0.04	0.06	0.09	0.11	0.12	0.13	0.16	0.18	0.22	0.25

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	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
25	1	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
25	1	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
25	1	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
40	1.5	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
40	1.5	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
40	1.5	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
40	1.5	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
50	2	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
50	2	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
50	2	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
50	2	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
80	3	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
80	3	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
80	3	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
80	3	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
100	4	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
100	4	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
100	4	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
100	4	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
150	6	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
150	6	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
150	6	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
150	6	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
200	8	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
200	8	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
200	8	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
200	8	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
250	10	0	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
250	10	1	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
250	10	2	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
250	10	3	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9

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	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
25	1	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
25	1	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
25	1	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
40	1.5	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
40	1.5	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
40	1.5	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
40	1.5	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
50	2	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
50	2	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
50	2	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
50	2	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
80	3	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
80	3	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
80	3	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
80	3	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
100	4	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
100	4	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
100	4	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
100	4	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
150	6	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
150	6	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
150	6	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
150	6	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
200	8	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
200	8	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
200	8	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
200	8	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
250	10	0	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
250	10	1	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
250	10	2	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
250	10	3	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68

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	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
25	1	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
25	1	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
25	1	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
40	1.5	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
40	1.5	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
40	1.5	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
40	1.5	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
50	2	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
50	2	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
50	2	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
50	2	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
80	3	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
80	3	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
80	3	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
80	3	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
100	4	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
100	4	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
100	4	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
100	4	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
150	6	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
150	6	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
150	6	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
150	6	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
200	8	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
200	8	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
200	8	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
200	8	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
250	10	0	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
250	10	1	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
250	10	2	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63
250	10	3	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63	0.63

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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