ZDLM type electric regulating sleeve is composed of 3810L series electric actuators and sleeve valve, electric actuator in the servo system, without the servo amplifier, electronic control unit is designed to be a box form, and the amount of resin casting driven feedback detection using high performance conductive plastic potentiometer, high reliability the product has 1/250 resolution, the connection is very simple, only need to control operation with DC4~20mA or DC1~5V input signal of AC single-phase power line, adjusting mechanism adopts balanced valve plug valve structure, has good stability, easy vibration, low noise, low sensitivity to temperature, allowing the use of larger pressure difference characteristics. Used in large flow, leakage requirements are not strict occasions.
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Nominal diameter DN
25
32
40
50
65
80
100
125
150
200
250
300
Valve seat diameterdn (mm)
25
32
40
50
65
80
100
125
150
200
250
300
Rated flow coefficient Kv
Confluence
8.5
13
21
34
53
85
135
210
340
535
800
1280
shunt
85
135
210
340
535
800
1280
Trip mm
16
25
40
60
100
Allowable differential pressure△MPa
≤Nominal pressure MPa
Basic error%
±2.5
Return difference%
2.5
dead zone%
1.0
Always point deviation%
±2.5
Rated Travel Deviation%
2.5
Allowable leakageQ
KvThe value of the0.05%
Adjustable range
30:1
Nominal pressure
Medium temperature
body material
1.6MPa
Room temperature from-20 DEG C ~200 cast iron HT200
4.0MPa
Room temperature -20 DEG C ~200 cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti
Cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti at medium temperature -40 C + 450 C
6.4MPa
Room temperature -20 DEG C ~200 cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti
Cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti at medium temperature -40 C + 450 C
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