21/2" Electric Globe Control Valves DN65

Name: 21/2″ Electric Globe Control Valves DN65
Brand: THINKTANK

Description

Electric Globe Control Valves: Essential for Industrial Automation

Product Name: Electric Globe Control Valve

Design Standard: ANSI/ISA 75.01.01 & ASME B16.34
Face to Face Standard: ASME B16.10
Flange Standard: ASME B16.5

Electric control valves are critical components in industrial automation, extensively used across various sectors including oil, chemicals, power generation, and pharmaceuticals. THINKTANK experts offer detailed guidance on model parameters and operational condition selection to assist you in choosing and utilizing the best electric control valves for your needs.

Model Parameters of Electric Control Valves

Model Description

The model number of an electric control valve typically comprises letters and numbers, indicating the manufacturer, function, connection type, and drive mode. For instance, the model “TT-EHCB/100C” signifies a THINKTANK brand electric control valve, where ‘E’ stands for Electric, ‘HCB’ denotes a control valve series, ‘100’ indicates a nominal diameter of DN100mm, and ‘C’ specifies the use of Carbon Steel in the valve body.

flow characteristics of control valve pressure

Temperature & Pressure Range of Body Material

Temperature ℃	Class150					Class300					Class600
	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M
-196~38	–	–	–	1.90	1.90	–	–	–	4.95	4.95	–	–	–	9.91	9.92
-45~38	1.84	–	–	1.90	1.90	4.78		–	4.95	4.95	9.57		–	9.91	9.92
-5~38	1.84	1.96	1.99	1.90	1.90	4.78	5.10	5.16	4.95	4.95	9.57	10.2	10.32	9.91	9.92
~50	1.81	1.92	1.92	1.84	1.84	4.72	5.00	5.16	4.77	4.80	9.46	10.1	10.32	9.56	9.62
~100	1.72	1.76	1.76	1.56	1.61	4.51	4.63	5.14	4.08	4.21	9.02	9.27	10.29	8.17	8.43
~150	1.57	1.57	1.57	1.39	1.47	4.40	4.51	5.01	3.62	3.85	8.78	9.04	10.03	7.26	7.69
~200	1.40	1.40	1.40	1.25	1.37	4.26	4.38	4.88	3.27	3.56	8.54	8.75	9.75	6.54	7.12
~250	1.20	1.20	1.20	1.16	1.20	4.05	4.16	4.62	3.04	3.34	8.11	8.33	9.26	6.10	6.67
~300	1.01	1.01	1.01	1.01	1.01	3.76	3.87	4.23	2.91	3.15	7.54	7.74	8.48	5.80	6.32
~350	0.84	0.84	0.84	0.84	0.84	3.59	3.69	4.01	2.81	3.03	7.18	7.38	8.04	5.60	6.07
~375	–	0.73	0.73	0.73	0.73	–	3.64	3.88	2.77	2.96	–	7.28	7.75	5.54	5.93
~400	–	0.64	0.64	0.64	0.64	–	3.44	3.65	2.74	2.91		6.89	7.31	5.48	5.81
~425	–	0.55	0.55	0.55	0.55	–	2.88	3.44	2.71	2.87		5.74	6.91	5.42	5.72
~450	–	0.47	0.47	0.47	0.47	–	1.99	3.08	2.68	2.81		4.00	6.17	5.37	5.61
~475	–	0.37	0.37	0.37	0.37	–	1.35	2.58	2.65	2.73		2.70	5.17	5.30	5.46
~500	–	0.28	0.28	0.28	0.28	–	0.88	2.02	2.60	2.67		1.75	4.04	5.20	5.37
~525	–	0.18	0.18	0.18	0.18	–	0.51	1.53	2.19	2.57	–	1.03	3.07	4.77	5.15
~550	–	–	–	–	–	–	–	1.20	2.00	2.40			2.40	4.00	4.60
~566	–	–	–	–	–	–	–	1.00	1.90	2.20			2.00	3.80	4.50

Temperature℃	Class900					Class1500					Class2500
	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M	LCB	WCB A105	WC6 F11	F304 CF8	F316 CF8M
– 196~38	–	–	–	14.88	14.88	–	–	–	24.79	24.79	–	–	–	41.34	41.34
-45~38	14.35	–	–	14.88	14.88	23.92	–	–	24.79	24.79	39.87	–	–	41.34	41.34
-5~38	14.35	15.31	15.50	14.88	14.88	23.92	25.51	25.84	24.79	24.79	39.87	42.52	43.07	41.34	41.34
~50	14.18	15.01	15.33	14.34	14.43	23.64	25.02	25.55	23.90	24.04	39.40	41.70	42.59	39.84	40.07
~100	13.52	13.90	14.62	12.25	12.65	22.53	23.16	24.36	20.42	21.09	37.56	38.62	40.61	34.01	35.14
~ 150	13.18	13.56	13.90	10.89	11.54	21.96	22.60	23.18	18.16	19.24	36.60	37.66	38.61	30.26	32.07
~200	12.79	13.14	13.63	9.82	10.69	21.32	21.89	22.73	16.37	17.83	35.53	36.50	37.88	27.28	29.71
~250	12.17	12.51	13.33	9.15	10.02	20.28	20.84	22.22	15.26	16.68	33.80	34.75	37.03	25.43	27.80
~300	11.30	11.61	12.72	8.71	9.49	18.84	19.36	21.20	14.52	15.80	31.40	32.26	35.33	24.20	26.34
~350	10.78	11.08	12.06	8.42	9.12	17.96	18.46	20.11	14.02	15.20	29.95	30.78	33.51	23.36	25.36
~375	–	10.94	11.63	8.32	8.91	–	18.22	19.38	13.86	14.84	–	30.37	32.32	23.12	24.74
~400	–	10.34	10.98	8.23	8.72	–	17.24	18.28	13.72	14.55	–	28.73	30.47	22.87	24.25
~425	–	8.62	10.53	8.14	8.59	–	14.37	17.54	13.57	14.32	–	23.94	29.23	22.63	23.87
~450	–	6.01	10.13	8.06	8.42	–	10.02	16.89	13.42	14.03	–	16.68	28.16	22.37	22.79
~475	–	4.06	9.50	7.97	8.20	–	6.76	15.82	13.27	13.67	–	11.28	26.36	22.13	22.34
~500	–	–	8.33	7.81	8.05	–	–	13.89	13.02	13.40	–	–	23.15	21.71	21.47
~525	–	–	6.08	7.15	7.73	–	–	10.12	11.94	12.89	–	–	16.88	19.88	20.79
~550	–	–	3.83	6.54	7.49	–	–	6.38	10.91	12.48	–	–	10.63	18.17	17.85
~575	–	–	2.55	6.02	7.22	–	–	4.24	10.04	12.04	–	–	7.08	16.72	15.20
~600	–	–	1.75	5.01	6.43	–	–	2.94	8.35	10.71	–	–	7.90	13.92	17.85
~625	–	–	–	3.92	5.48	–	–	–	6.54	9.12	–	–	–	10.89	15.20
~650	–	–	–	3.16	4.23	–	–	–	5.25	7.06	–	–	–	8.75	11.76
~675	–	–	–	2.33	3.78	–	–	–	3.88	6.31	–	–	–	6.45	10.53

Key Parameters

Main parameters include nominal diameter, flow coefficient, adjustable range, drive mode, power supply voltage, and protection grade:
Nominal Diameter: This is the inlet and outlet diameter of the electric control valve, determining its flow capacity. Choose a suitable nominal diameter based on actual needs.
Flow Coefficient: A measure of the valve’s flow capacity, which is related to the nominal diameter. A higher flow coefficient indicates a stronger flow capacity.
Adjustable Range: An important performance index of the valve, indicating the range of flow it can control within its rated stroke. A larger adjustable range means broader control capabilities.
Drive Mode: Includes mechanical electric, smart, or digital electric actuator. Select based on actual needs and site conditions.
Power Supply Voltage: Common voltages include AC220V, 380V, or DC24V. Consider site power conditions when choosing.
Protection Grade: Indicates the valve’s dust and water resistance, essential for suitability in harsh environments.

Cv Rate and Valve Travel

Class150~600, PN16~110

Size		32		40			50			65			80			100			125
Seat		32		40			50			65			80			100			125
Rated Cv	EQ%	11	17	11	17	24	17	24	44	24	44	68	44	68	99	68	99	175	99
	Linear%	11	17	11	17	24	17	24	44	24	44	68	44	68	99	68	99	175	99
Travel(mm)		25								38									50

Size		125		150			200			250	300	350	400	450	500	600
Seat		125		150			200			250	300	350	400	450	500	600
Rated Cv	EQ%	175	275	175	275	360	275	360	650	1050	1200	1700	1800	2500	3540	4180	4650	5850
	Linear%	175	275	175	275	360	275	360	650	1350	1560	2120	2750	3300	4650	5500	5850	6700
Travel(mm)		50					75			100		120		150			200	280

Class900~ 1500, PN150~260

Size		32		40			50			65			80			100
Seat		32		40			50			65			80			100
Rated Cv	EQ%	12	17	12	17	25	17	25	50	25	50	80	50	80	110	80	110
	Linear%	12	20	12	20	30	20	30	60	30	60	90	60	90	140	90	140
Travel(mm)		25								38

Size		100	125			150			200			250	300	350	400	450
Seat		100	125			150			200			250	300	350	400	450
Rated Cv	EQ%	180	110	180	275	180	275	360	275	360	650	1000	1440	2040	2500	3100
	Linear%	200	140	200	330	200	330	480	330	480	700	1050	1500	2040	2650	–
Travel(mm)		38	50						75			100		120		175

Class2500

Size		32	40		50			65			80			100			125			150			200
Seat		32	40		50			55			55			85			125			130			150
Rated Cv	EQ%	12	12	17	12	17	30	17	30	50	30	50	80	50	80	125	80	125	180	125	180	265	180	265	470
	Linear%	12	12	20	12	20	42	20	42	60	42	60	90	60	90	150	90	125	200	125	200	330	200	330	520
Travel(mm)		25						38									50						75

Globe Control Valve Face to Face Dimension (mm)

DN	A
	Class 150 RF JIS 10K FF RF PN16 RF	JIS 16K RF	Class 300 RF JIS 20K RF JIS 30K RF PN40	Class 600 RF JIS 40K RF PN63	JIS 16K	JIS 20K	JIS 30K	JIS 40K
32	190	–	205	210	–	–	–	–
40	222	231	235	251	235	236	248	251
50	254	263	267	286	265	267	276	286
65	276	288	292	311	290	292	303	311
80	298	313	317	337	310	317	326	337
100	352	364	368	394	360	368	379	394
125	403	–	425	457	–	425	–	457
150	451	465	473	508	475	473	486	508
200	543	560	568	610	570	568	580	610
250	673	–	708	752	–	–	–	–
300	737	–	775	819	–	–	–	–
350	889	–	927	972	–	–	–	–
400	1016	–	1057	1108	–	–	–	–
450	1140	–	1181	1239	–	–	–	–
500	1267	–	1397	1499	–	–	–	–
600	1556	–	1576	1676	–	–	–	–

DN	A
	Class 150 RJ	Class 300 RJ	Class 600 RJ	Class 300	Class 600	Class 150 SW、BW	Class 150、600 SW、BW
32	235	248	251	244	248	251	251
40	235	248	251	244	248	251	251
50	267	283	289	276	283	286	286
65	289	308	314	302	308	311	311
80	311	333	340	327	333	337	337
100	365	384	397	378	391	394	394
150	464	489	511	483	505	473	508
200	556	584	613	578	606	568	610

DN	A
	JIS63K	Class 900		Class 1500		Class 2500
	RF	RF（SW，BW）	RJ	RF（SW，BW）	RJ	RF（SW，BW）	RJ
40	323	333	333	333	333	358	361
50	354	375	378	375	378	400	403
80	431	440	443	460	463	498	504
100	496	510	513	530	533	575	585
150	699	715	718	770	776	820	833
200	895	915	918	972	982	1020	1036
250	–	1137	1140	1327	1336	–	–
300	–	1311	1314	1400	1416	–	–
350	–	–	–	1526	1526	–	–
400	–	1520	1520	–	–	–	–
450	–	–	–	1720	1720	–	–

Selection Based on Operational Conditions

When selecting an electric control valve, consider the operating conditions such as medium type, working pressure, and temperature:

Medium Type: The type of medium greatly affects the performance and structure of the valve. Corrosive media require corrosion-resistant materials or protective measures.
Working Pressure: Influences the performance and lifespan of the valve. High pressures necessitate high-strength materials and structures.
Working Temperature: Affects the materials and sealing performance of the valve. High temperatures require materials and seals that can withstand the heat.

Electric Actuator Basics

Power Supply: Options DC24V, AC220V, AC380V.
Input Control Signal: Typically 4-20MA or DC1-5V.
Feedback Control Signal: Usually DC4-20MA (load resistance under 500 ohms).

Electric control valves receive signals from automation control systems (e.g., 4~20mA) to adjust the valve and control parameters such as flow, temperature, and pressure, enabling automated adjustment.

Flow Characteristics and Selection

Flow characteristics of electric control valves include linear, equal percentage, and parabolic options, each suitable for different applications based on required control precision and stability.

Equal Percentage Characteristics

The relative stroke and flow of the equal percentage characteristic are not linear. This occurs because the flow change at any stroke point is proportional to the flow at that point, and the percentage change in flow remains consistent. As a result, when the flow is small, the change is minimal; when the flow is large, the change is significant, providing the same precision of adjustment at different openings.

Linear Characteristics

The relationship between the relative stroke and flow for linear characteristics is linear. The flow change caused by any unit change in stroke is constant. This means that large flows result in minor relative changes, and small flows result in significant relative changes.

Parabolic/Modified Characteristics

THINKTANK offers expert selection advice and free technical support and consultation services. Contact us to optimize your industrial processes with reliable, efficient control solutions.

The Ultimate Valve Cv Sheets

Additional information

Size:	1'' ~ 24''
ANSI Class:	150 ~ 2500LB
Body Materials:	A216 WCB, A216WC6, A352 LCB, A351 CF8, A351 CF8M, A351 CF3M, A351 CF3
Temperature Range:	-196 ~ +550°C