ZDLM electronic type electric control valve sleeve, straight stroke electric actuator for fully electronic and direct low flow resistance of balanced sleeve valve. With a compact, light weight, sensitive, fluid channel S was streamlined, the pressure drop, valve capacity, accurate flow characteristics directly accepted to adjust the instrument input (4-20mA DC 0-10mA DC or 1-5V DC) control signals and single-phase power to control the operation, to achieve automatic adjustment of the fluid medium on the process piping control parameters are widely used in precise control of gases, liquids, steam and other media of the process parameters such as pressure, flow, temperature, level maintained at a given value. Is a new generation of general-purpose control valve products in accordance with IEC standards.
Structural characteristics of
A. ZDLM electronic type electric control valve sleeve implementation of the automated control system instrumentation unit, AC220V power supply voltage for the power, accept input from DCS, PLC systems, or adjust the instrument, operator, etc. (4-20mA ,0-10mA or 1-5VDC) current signal or voltage signal to control the operation of mining mechatronic structure inside the servo operation and opening signal position feedback, position indicator, manual operation, functional, reliable performance, the connection simple, high regulation accuracy, the output thrust of the straight trip to change the valve opening displacement to achieve the precise regulation and control of process parameters of the fluid medium
Two. ZDLM electronic electric control valve sleeve can be divided into the mode of action;
Positive role: power closed - normally open valve position (when the signal increases downward displacement), "B type"
Reaction: power open - normally closed valve position (when the signal increases upward displacement), "K-type"
3. ZDLM electronic type electric control valve sleeve for straight sleeve casting ball valve, using a balanced spool, the unbalanced force is small, stable operation, the differential pressure valve before the valve leak slightly larger workplace.
4. Direct low flow resistance sleeve valve spool with pressure balance cage spool structure spool cylindrical, precision machined out of certain characteristics of fenestrae oriented and driven by the top of the sleeve's inner circle, and thus stem on the unbalanced force is very small, stable operation, good performance, is a force-balance type of control valve. For high occasions at both ends of the pressure difference before and after the valve spool sleeve side-oriented eddy current arising from the impact of vibration is reduced, it has a low noise, small flash role of cavitation, long life . Seat leakage rate is slightly larger than a single seat valve.
5 Change the spool-shaped design; the different spool fenestrae shape will be the value of the different flow characteristics: percentage (number) sexual, straight line.
This series of products are widely used in chemical, petroleum, metallurgy, power plant, textile, paper and pharmaceutical industrial production process of automatic regulation and remote control.
Standard bellows seal type, jacket and insulation type varieties. Product pressure grade PN1.6 4.0 6.4MPa; nominal diameter DN25-300mm; applicable fluid temperature -100 - +500 ° C; with different valve cover can be divided into high and low temperature with the room temperature, high temperature and low temperature.
执行机构主要技术参数
|
型号 |
输出推力N |
速度mm/s |
最大行程（mm） |
型号 |
输出推力N |
速度mm/s |
最大行程（mm |
|
381LSA-08
381LXA-08 |
800
800 |
4.2
4.2 |
30 |
PSL201 |
1000 |
0.4/1.2 |
50 |
|
381LSA-20
381LXA-20 |
2000
2000 |
2.1
2.1 |
30 |
PSL202 |
2000 |
0.4/1.2 |
50 |
|
381LSB-30
381LXB-30 |
3000
3000 |
3.5
3.5 |
60 |
PSL204 |
4500 |
0.4/1.2 |
50 |
|
381LSB-50
381LXB-50 |
5000
5000 |
1.7
1.7 |
60 |
PSL208 |
8000 |
1.0 |
50 |
|
381LSC-65 |
6500 |
2.8 |
100 |
PSL210 |
10000 |
1.0 |
50 |
|
381LSC-99 |
10000 |
2.0 |
100 |
PSL312 |
12000 |
1.0 |
65 |
|
381LSC-160 |
16000 |
1.0 |
100 |
PSL325 |
25000 |
1.0 |
100 |
|
(信号线用屏蔽线) 防护等级：相当IP55 隔爆标志：ExdⅡBT4 带手柄 |
(信号线用屏蔽线) 防护等级：IP65 带手轮 |
性能指标
|
项目 |
指标值 |
|
基本误差％ |
381L ±2.5； PSL±1.0 |
|
回差％ |
381L ±2.0； PSL±1.0 |
|
死区％ |
1.0 |
|
始终点偏差％ |
电开 |
始点 |
±2.5 |
|
终点 |
±2.5 |
|
电关 |
始点 |
±2.5 |
|
终点 |
±2.5 |
|
可调范围 |
50：1 |
|
额定行程偏差％ |
2.5 |
允许压差 MPa（同一格内上行为双密封型允许压差，下行为单密封型允许压差）
|
公称通径(mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
阀座直径(mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
执行机构 |
允许压差△P（MPa） |
|
配PSL |
PSL202 |
6.4
3.14 |
6.4
1.92 |
6.4
1.23 |
5.1
0.78 |
|
|
|
|
|
|
|
|
|
PSL204 |
|
4.31 |
2.76 |
1.76 |
6.4
1.04 |
6.4
0.69 |
5.62
0.44 |
|
|
|
|
|
|
PSL208 |
|
|
|
|
1.86 |
1.23 |
0.78 |
6.4
0.50 |
5.31
0.35 |
3.97
0.20 |
|
|
|
PSL320 |
|
|
|
|
|
|
|
1.26 |
0.87 |
0.49 |
6.4
0.32 |
4.14
0.22 |
|
配361L |
381LSA-20 |
6.4
3.14 |
6.4
1.92 |
6.4
1.23 |
6.4
0.78 |
|
|
|
|
|
|
|
|
|
381LSB-50 |
|
|
|
|
6.4
1.16 |
6.4
0.76 |
6.25
0.49 |
|
|
|
|
|
|
381LSC-65 |
|
|
|
|
|
|
|
6.4
0.64 |
4.32
0.41 |
3.23
0.28 |
|
|
|
381LSC-99 |
|
|
|
|
|
|
|
0.63 |
0.44 |
0.25 |
3.31
0.16 |
0.27
0.11 |
主要零件材料及适用温度、介质
|
公称通径mm |
DN15-DN300 |
|
材料代号 |
C（WCB） |
P（304） |
R（316） |
|
主要
零件 |
阀体、阀盖 |
WCB（ZG230-450） |
ZG1Cr18Ni9Ti（304） |
ZG1Cr18Ni12Mo2Ti（316） |
|
阀芯、阀座 |
1Cr18Ni9Ti（304）或司钛莱合金堆焊 |
1Cr18Ni9Ti（304）或司钛莱合金堆焊 |
1Cr18Ni12Mo2Ti(316)或司钛莱合金堆焊 |
|
阀杆 |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
填料 |
V型聚四氟乙烯（F4）、柔性石墨、不锈钢波纹管 |
|
垫片 |
增强聚四氟乙烯（F4） 、不锈钢垫片、金属石墨缠绕垫片 |
|
推杆、衬套 |
2Cr13 |
|
适用
工况 |
适用介质 |
水蒸汽油品类气液体 |
硝酸碱类腐蚀性气液体 |
醋酸类等腐蚀性气液体 |
|
常温型 |
-30～+250 F4：≤200℃ |
-40～+250 F4：≤200℃ |
-40～+250℃ F4：≤200℃ |
|
高温型 |
-30～+450℃ |
-40～+500℃ |
-40～+500℃ |
|
低温型 |
|
-40～-60℃、 -60～-100℃ |
主要技术参数
|
公称通径mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
阀座直径mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
额定流量
系数Kv |
直线 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
1100 |
1760 |
|
等百分比 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
1000 |
1600 |
|
额定行程L（mm） |
10 |
16 |
25 |
40 |
60 |
100 |
|
执行器型号 |
3810L |
381LS-8 |
381LS-20 |
381LS-30 |
381LS-50 |
381LS-65 |
381LS-99 |
|
PSL |
PSL201 |
PSL202 |
PSL204 |
PSL208 |
PSL312 |
PSL325 |
|
|
防爆型 |
381LX-20 |
381LX-30 |
381LX-50 |
381LX-65 |
381LX-99 |
|
电源电压 |
AC220V 50Hz |
|
信号范围 |
4～20mA DC 0～10mA DC或1～5V DC 0～10V DC |
|
作用模式 |
电开式（K）型、电闭式（B）型 |
|
故障状态时 |
全开、全关、自锁保位 |
|
流量特性 |
直线、等百分比 |
|
允许泄漏量（L/h） |
单密封符合IV级 小于阀的额定容量×10-4
双密封符合Ⅲ级 小于阀的额定容量×10-3 |
|
固有可调比R |
50:1 |
|
公称压力PN(MPa) |
1.6 2.5 4.0 6.4 |
产品应用规范
GB/T7387 结构长度GB/T12221-05 材料：GB/T12228-12230
法兰连接：JB/T79-94 GB/T9113
符合：IEC60534标准
