ZDLJP electronic type electric single-seat valve, straight stroke electric actuator for fully electronic, and top-oriented through the low flow resistance of a single seat 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. ZDLJP electronic electric single-seat valve automation control systems, instrumentation, execution units, AC220V power supply voltage, power, and accept input from DCS, PLC systems, or adjusting instruments, operation, etc. (4-20mA ,0-10mA or 1-5VDC) current signal or voltage signal to control operation of the 381L or PSL fully electronic type electric actuator, the servo operating within the machine and opening signal position feedback, position indicator, manual operation, electrical and mechanical integration of structural design, functional, reliable performance, simple connection and high precision adjustment, 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. ZDLJP electronic type electric single-seat control valve 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. ZDLJP electronic electric single seat control valve through single seat casting ball valve, single-seat piston valve core apply strict leakage and the valve before the valve differential pressure, small and medium has a certain viscosity or containing fibers impurities in the working conditions.
4. Straight-through case back top structure, it is only one seat and a plunger-shaped spool with airtight performance, leakage and quick action and fluid channel S was streamlined, the pressure drop, low flow resistance single-seat valve capacity, flow characteristics of precision, adjustable, the orientation of the spool-oriented part of the area, with anti-vibration performance, and other characteristics, suitable for media leaks and adjust the accuracy of the stringent requirements of the occasion, but because of the valve structure reasons, a large unbalanced force on the valve stem is more obvious, especially in the nominal diameter large conditions, and thus the valve is only suitable for smaller occasions the working pressure.
5 Change the spool-shaped design; the different shape of the spool will be the value of the different flow characteristics: equal percentage (number), linear, quick opening characteristics.
6. Requirements, working conditions spool design made into; soft seal structure (for -20 - +120 ° C temperature range of the tight closure of the acid and alkali, gas and other media).
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 room temperature and high temperature heat type, low-temperature extension type, bellows seal type, jacket and insulation type varieties. Product pressure rating PN1.6 4.0 6.4MPa; nominal diameter DN 15-200mm; minimum spool DN6mm. For fluid temperature -100 - +550 ℃.
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 |
主要零件材料及适用温度、介质:
|
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 |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
额定流量
系数Kv |
直线 |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
1100 |
1760 |
|
等百分比 |
1.6 |
2.5 |
4 |
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） |
硬密封：≤10-4×阀的额定容量；软密封： VI级 |
|
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：
设计制造：JB/T7387、IEC60534 法兰尺寸：JB/T79-94 、HG20592、ANSI B16.5、JIS B2212-2214
结构长度：GB/T12221、ANSI B16.10、JIS B2002
