electric fine small sleeve valve accept direct current signal conditioning instrument to change, by adjusting the media flow, the controlled process parameters are kept in a given value. Widely used in electric power, metallurgy, chemical production automation, petroleum textile, pharmaceutical, paper and other industrial departments control. The series of products are nominal diameter from 20 to 300mm, nominal pressure of 1.6, 4, 6.4MPa, received signal is 0 ~ 10mA.DC and 4 ~ 20mA.DC, the temperature range of -40 ℃ ~ 450 ℃ by. The electric control valve is applicable to the differential pressure small, medium viscosity or slightly granular impurities occasions; electric control valve sleeve is applicable to a larger pressure difference and the leakage is large.
List the main technical parameters are as follows:
DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||||
10 | 12 | 15 | 20 | ||||||||||||||
The rated flow coefficient Kv | A straight line | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | 1100 | 1760 |
The percentage of | 1.6 | 2.5 | 4 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | 1000 | 1600 | |
Rated stroke L(mm | 10 | 16 | 25 | 40 | 60 | 100 | |||||||||||
Nominal pressure PN(MPa) | 1.6,4.0,6.4 | ||||||||||||||||
The inherent flow characteristics | Linear, equal percentage | ||||||||||||||||
The inherent adjustable ratio R | 50:1 | ||||||||||||||||
Allowable leakage | Single seat | Hard seal, soft seal: grade: grade VI | |||||||||||||||
Sleeve | Sealing: II, soft seal: VI class | ||||||||||||||||
Working temperature t(℃) | -20～200,-40～250,-40～450,-60～450 | ||||||||||||||||
Signal range(mA.DC) | 0～10,4～20 | ||||||||||||||||
The power supply voltage | 220V,50Hz | ||||||||||||||||
Mode of action | Fault: fully closed, fully open, self locking position | ||||||||||||||||
Structure diagram as follows:
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