The electric regulating butterfly valve is powered by a 220V AC power supply and receives standard signals of 0~10mA or 4~20mA. It drives the valve opening to correspond to this operating signal, achieving the purpose of regulating the pressure, flow rate, and temperature of the medium. The structure is simple and the operation is convenient. The valve plate adopts an elliptical inclined closing structure, with a small leakage rate. Suitable for large-diameter and high flow applications. Due to its self-cleaning function, it is particularly suitable for regulating ventilation systems and media containing suspended particles.
This butterfly valve is used in conjunction with an electric actuator and can change the flow rate of various liquids, gases, dust, and smoke in metallurgical, power, petrochemical, light imitation, building materials, and environmental protection industrial pipelines through different control signals, thereby achieving automatic regulation and remote control of industrial processes.
Main technical parameters of electric regulating butterfly valve
Nominal Diametermm | 50 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 | |
Rated flow coefficientKv | 85 | 220 | 340 | 530 | 770 | 1360 | 2310 | 3060 | 4160 | 5450 | 6900 | 8500 | 12200 | 16600 | 21700 | 27100 | 34000 | |
Nominal pressureMPa | 0.1 | |||||||||||||||||
Allowable pressure difference MPa | 0.6 | 0.5 | 0.25 | 0.14 | 0.06 | 0.032 | 0.046 | 0.029 | 0.02 | 0.033 | 0.024 | 0.014 | 0.009 | 0.016 | 0.011 | 0.008 | ||
Valve plate angle | 0~70° | |||||||||||||||||
Traffic characteristics | Approximately equal percentage | |||||||||||||||||
Valve neck type | Ordinary type (constant temperature type); Hot plate (medium temperature type) | |||||||||||||||||
Medium temperature℃ | Cast iron: -20~+200; Cast steel: -40~+250 (normal temperature type)- 40~+450 (medium temperature type) | |||||||||||||||||
Flange standard | Flange connection: JB81-59 |
Note: 1 The allowable pressure difference in the table is the value when the valve plate is fully opened at 70 °. When it is used below 70 °, △ P will increase.
If you want to exceed the allowable pressure difference listed in the table, you can choose a larger actuator.
Performance indicators of electric regulating butterfly valve
Project | Indicator value | Project | Indicator value |
Basic error% | ≤±3.5 | Always point deviation% | ≤±3.0 |
Return difference% | ≤3.0 | Rated angle deviation% | ≤±3 |
Dead zone% | ≤3.0 | Allowable leakage amount L/h | 0.5% x valve rated capacity |
Main component materials of electric regulating butterfly valve
Valve body and valve plate | Stainless steel SUS304 | -250~+550℃ |
valve stem | Stainless steel SUS316L | |
filler | Flexible graphite | -200~+600℃ |
Main external dimensions of electric regulating butterfly valve
Nominal Diameter (DN) | Dimensions | Flange size | |||||||||||||
L | L1/L2 | H | H1 | A | 1.0MPa | 1.6MPa | 2.5MPa | ||||||||
hard seal | soft seal | D | D1 | n-Фd | D | D1 | n-Фd | D | D1 | n-Фd | |||||
50 | 108 | 43 | 112 | 63 | 625 | 245 | 165 | 125 | 4-18 | 165 | 125 | 4-18 | 165 | 125 | 4-18 |
65 | 112 | 46 | 115 | 70 | 625 | 245 | 185 | 145 | 4-18 | 185 | 145 | 4-18 | 185 | 145 | 8-18 |
80 | 114 | 46 | 120 | 83 | 645 | 245 | 200 | 160 | 4-18 | 200 | 160 | 8-18 | 200 | 160 | 8-18 |
100 | 127 | 52 | 138 | 105 | 675 | 355 | 220 | 180 | 8-18 | 220 | 180 | 8-18 | 235 | 190 | 8-22 |
125 | 140 | 56 | 164 | 115 | 715 | 355 | 250 | 210 | 8-18 | 250 | 210 | 8-18 | 270 | 220 | 8-26 |
150 | 140 | 56 | 175 | 137 | 800 | 355 | 285 | 240 | 8-22 | 285 | 240 | 8-22 | 300 | 250 | 8-26 |
200 | 152 | 60 | 200 | 164 | 850 | 250 | 340 | 295 | 8-22 | 340 | 295 | 12-22 | 360 | 310 | 12-26 |
250 | 165 | 68 | 243 | 206 | 925 | 250 | 395 | 350 | 12-22 | 405 | 355 | 12-26 | 425 | 370 | 12-30 |
300 | 178 | 78 | 250 | 230 | 1035 | 450 | 445 | 400 | 12-22 | 460 | 410 | 12-26 | 485 | 430 | 16-30 |
350 | 190 | 78 | 280 | 248 | 1070 | 450 | 505 | 460 | 16-22 | 520 | 470 | 12-26 | 555 | 490 | 16-33 |
400 | 216 | 102 | 305 | 289 | 1190 | 450 | 565 | 515 | 16-26 | 580 | 525 | 16-26 | 620 | 550 | 16-36 |
450 | 222 | 114 | 350 | 320 | 1250 | 650 | 615 | 565 | 20-26 | 640 | 585 | 16-30 | 670 | 600 | 20-36 |
500 | 229 | 127 | 380 | 343 | 1290 | 650 | 670 | 620 | 20-26 | 715 | 650 | 20-30 | 730 | 660 | 20-36 |
600 | 267 | 154 | 445 | 413 | 1455 | 850 | 780 | 725 | 20-30 | 840 | 770 | 20-33 | 845 | 770 | 20-39 |
700 | 292 | 165 | 480 | 478 | 1585 | 850 | 895 | 840 | 24-30 | 910 | 840 | 24-36 | 960 | 875 | 24-42 |
800 | 318 | 190 | 530 | 525 | 1700 | 1250 | 1015 | 950 | 24-33 | 1025 | 950 | 24-39 | 1085 | 990 | 24-48 |
900 | 330 | 203 | 580 | 585 | 1965 | 1250 | 1115 | 1050 | 28-33 | 1125 | 1050 | 28-39 | 1185 | 1090 | 28-48 |
1000 | 410 | 216 | 650 | 640 | 2015 | 1250 | 1230 | 1160 | 28-36 | 1255 | 1170 | 28-42 | 1320 | 1210 | 28-56 |
1200 | 470 | 254 | 760 | 755 | 2250 | 1250 | 1455 | 1380 | 32-39 | 1485 | 1390 | 32-48 | 1530 | 1420 | 32-56 |
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006