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- Electric Control Shut Off Butterfly Valves Double Eccentric 4-20mA DC
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Product Specification
ZDJW Electric Control and Shut-off Butterfly Valve
The ZDJW type electronic double-eccentric electric control butterfly valve is composed of an electronic actuator and a double-eccentric butterfly valve.
It uses a power supply of 220V·AC, 50Hz, and is equipped with a servo amplifier, a position signal generator, a handwheel mechanism, torque limit switches, travel switches, and a valve position indicator. It can accept 4-20mA·DC signals output by industrial control instruments or computers to control the valve opening, and can simultaneously output 4-20mA·DC valve position feedback signals. This butterfly valve features an advanced structure, convenient operation, reliable shut-off, and small leakage. The valve seat is available in both soft seal and hard seal types. It is suitable for occasions with large diameters and large flows. Due to its self-cleaning function, it is particularly suitable for regulating thick turbid slurries and media containing suspended particles.
| Basic Technical Parameters |
| Nominal Diameter DNmm | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 |
| Rated flow coefficient Kv | 85 | 140 | 302 | 600 | 1022 | 1579 | 3136 | 5340 | 8250 | 11917 | 16388 | 21705 | 27908 | 43116 | 166000 | 271000 |
| nominal pressure MPa | 1.01.6 |
| actuator | model | 381RSA-05 | 381RSB-10 | 381RSB-20 | 381RSC-50 | 381RSC-60 | 381RSD-150 |
| output torque N-m | 50 | 100 | 200 | 500 | 600 | 1500 |
| input signal range | 4-20mA·DC |
| Allowable pressure difference MPa | 1.6 | 1.6 | 1.6 | 0.81 | 0.5 | 0.32 | 0.27 | 0.18 | 0.2 | 0.11 | 0.08 | 0.07 | 0.058 | 0.03 | 0.033 | 0.016 |
| rated rotation angle | 90° |
| full stroke time S | 23 | 25 | 29 | 29 | 32 |
| flow characteristic | Approximately equal percentage |
| leakage class | soft seal | GB/T4213Ⅵ |
| hard seal | GB/T4213Ⅳ |
| valve seat sealing type | soft seal, hard seal |
| medium temperature ℃ | -40～+180-40～+300 |
| flange type | wafer type, flange type |
| Materials of main parts and applicable temperature range |
| Valve body, valve plate | ZG230-450 | -40～+450℃ |
| ZG1Cr18Ni9TiZG0Cr18Ni12Mo2Ti | -250～+550℃ |
| valve stem | 2Cr131Cr18Ni9Ti | -250～+550℃ |
| valve seat seal | reinforced polytetrafluoroethylene | -40～+180℃ |
| metal elastic steel plate | -40～+250℃ |
| -40～+200℃ |
| packing | XS450 rubber asbestos packing | +450℃ |
| flexible graphite | -200～+600℃ |
| Nominal Diameter DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 |
| ΦA | 225 | 255 | 270 | 335 | 335 | 470 |
| H | 320 | 350 | 360 | 410 | 723 | 778 | 845 | 885 | 1025 | 1090 | 1180 | 1225 | 1270 | 1385 | 1755 | 1940 |
| H1 | 55 | 65 | 75 | 110 | 120 | 135 | 180 | 210 | 235 | 274 | 305 | 330 | 350 | 400 | 460 | 520 |
| L | 43 | 46 | 64 | 64 | 70 | 76 | 89 | 114 | 114 | 127 | 140 | 152 | 152 | 154 | 165 | 190 |
Company Details
Bronze Gleitlager
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Graphite Plugged Bushings
from Quality China Factory
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Business Type:
Manufacturer,Seller
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Total Annual:
141790014-161450000
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Employee Number:
1000~1200
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Ecer Certification：
Verified Supplier
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