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ZDLM electric precision sleeve regulating valve
Technical parameters: The ZDLM electric precision sleeve regulating valve receives DC current signals from the regulating instrument, changes the flow
Product details
ZDLM electric precision sleeve regulating valveAccept the DC current signal from the regulating instrument, change the flow rate of the regulated medium, and maintain the controlled process parameters at the given values. Widely used in production automation control of industrial sectors such as power, metallurgy, chemical, petroleum and textile, pharmaceuticals, and papermaking. The nominal diameter of this series of products ranges from 20 to 300mm, with nominal pressures of 1.6, 4.0, and 6.4MPa. The received signal is 0-10mA.DC or 4-20mA.DC, and the operating temperature range is from -40 ℃ to 450 ℃. The electric single seat regulating valve is suitable for situations with small pressure difference, high medium viscosity, or slight particle impurities; Electric sleeve regulating valve is suitable for situations with large pressure difference and leakage.
Small and preciseelectric control valveThe main technical parameters are shown in the table below:
Nominal diameter DN (mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
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10 |
12 |
15 |
20 |
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Rated flow coefficient Kv |
straight line |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
1100 |
1760 |
Equal percentage |
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 |
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Nominal pressure PN (MPa) |
1.6, 4.0, 6.4 |
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Inherent flow characteristics |
Straight line, equal percentage |
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Inherent adjustable ratio R |
50：1 |
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Allowable leakage amount |
Single seat |
Hard seal: Grade IV, soft seal: Grade VI |
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sleeve |
Sealing: Grade II, Soft Sealing: Grade VI |
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Working temperature t (℃) |
-20-200, -40 to 250, -40 to 450, -60 to 450 |
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Signal range (mA. DC) |
0-10, 4-20 |
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supply voltage |
220V、50Hz |
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action |
In case of malfunction: fully closed, fully open, self-locking position |
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Small and preciseelectric control valveThe relevant structural diagram is as follows:
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