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Electronic motorized adjustable valve with double seats

Miss Shao : +86-1862762655

TEL: +86-513-88400999 FAX: +86-513-88400998 E-mail: jszk@vip.163.com

 

ZDSN motorized adjustable valve with double seats is used together with PS series straight travel motorized actuator, no need to match servo amplifier. If there is input control sign (4-20mADC or 1-5VDC)and single phase power, it can work, adjusting the pressure, flow,temperature, hydraulic position etc. It is suitable for clean sites of not strict leakage and big differential pressure. Electronic motorized adjustable valve with double seats of Nantong China-Mining Cement Equipment Co. LTD is widely used in the automatic controlling system of generating plant, metallurgy, petroleum, chemical industry, light industry and environment protection etc.
 
Ⅰ、Valve body
Type:Straight casting valve
Nominal diameter:20-300mm                                                           
Nominal pressure:PN1.6       4.0         6.4MPa
Connection type:Flange is according to JB78-59 and JB79-59.
Material:HT200  ZG230—450   ZG1Cr18Ni9Ti   ZG0Cr18Ni12Mo2Ti
 
Ⅱ、Upper valve cover
Normal temperature :-20℃-+200℃                                                        
Scattering heat:-40℃-+450℃
Type of pressure cover:Bolt pressure
Filling material:Type V polyfluortetraethylene filling material, soft graphite, stainless steel wave pipe
 
. Parts in valve
Type of valve core:Double-direction piston valve core with single seat
Flow character:Equal percentage, linear and quick opening
Material:1Cr18Ni9Ti      0Cr18Ni12Mo2Ti
Ⅳ、Actuator
Type:Select PS、3810 series electronic straight travel actuator.
The series 3810 is the type of anti-explosion is selected 3810 series.
Technical parameter and capacity:Please refer to the operation manual of the relevant actuator and locator of valve.
 
Ⅴ、Suggested temperature range of main parts material
 Material of valve body
Nominal pressure
(MPa)
Media work temperature(℃)
120
200
250
300
350
400
425
450
475
500
525
550
575
600
The Max. working pressure(MPa)
Casting iron HT200
1.6
1.6
1.5
 
 
 
 
 
 
 
 
 
 
 
 
Casting steel ZG25
4.0
6.4
 
 
4.0
6.4
3.7
5.9
3.3
5.2
3.0
4.7
2.8
4.1
2.3
3.7
1.8
2.9
 
 
 
 
 
 
Stainless steel ZG1Cr18Ni9Ti
4.0
6.4
 
 
 
 
4.0
6.4
3.0
4.4
2.7
4.2
2.4
4.0
2.1
3.8
1.9
3.5
1.7
3.4
1.4
3.2
1.1
2.9
0.8
2.6
 
4.0MPa
-40℃~+200℃          ZG25         ZG1Cr18Ni9Ti
-40℃~+450℃          ZG25         ZG1Cr18Ni9Ti
6.4MPa
-20℃~+200℃          ZG25         ZG1Cr18Ni9Ti
-40℃~+450℃          ZG25         ZG1Cr18Ni9Ti
 
 
Main technical parameter
Nominal diameter(DN)
20
25
32
40
50
65
80
100
125
150
200
250
300
Dia. Of valve seat
dn(mm)
20
25
32
40
50
65
80
100
125
150
200
250
300
Rated flow factor(Kv)
 
10
16
25
40
63
100
160
250
400
630
1000
1600
Travel(mm)
10
16
25
40
60
100
Basic error(%)
±1.0
Return difference (%)
1.0
Dead area (%)
1.0
Starting and final point deviation(%)
±2.5
Rated travel deviation(%)
2.5
Allowable leakage rate(Q)
Grade III    0.05% of Kv value according to the standard of GB4213-84.
Adjustable range
50:1
Nominal pressure and media temperature and material of valve body
1.6MPa
Normal temperature-20℃~+200℃   Casting iron HT200
4.0MPa
Normal temperature-40℃~+200℃   Casting iron ZG25         Casting stainless steel ZG1Cr18Ni9Ti
Middle temperature -40℃~+450℃   Casting steel ZG25      Casting stainless steel ZG1Cr18Ni9Ti
6.4MPa
Normal temperature-20℃~+200℃    Casting steel ZG25          Casting stainless steel ZG1Cr18Ni9Ti
Middle temperature-40℃~+450℃    Casting steel ZG25         Casting stainless steel ZG1Cr18Ni9Ti
Allowable pressure difference
Nominal diameter
25
40
50
65
80
100
150
200
250
300
Diameter of valve seat mm
25
32
40
50
65
80
100
125
150
200
250
300
Actuator
Allowable DPΔP(Mpa)
PSL202
6.4
6.4
6.4
5.10
 
 
 
 
 
 
 
 
PSL204
 
 
 
 
6.4
6.4
5.62
 
 
 
 
 
PSL208
 
 
 
 
 
 
 
6.4
5.31
3.97
 
 
PSL320
 
 
 
 
 
 
 
 
 
 
6.4
4.14

 

Installation dimension and weightZDSN
Nominal diameter
DN(mm)
L(mm)
H1
mm
H(mm)
R
mm
Weight(kg)
PN(MPa)
Normal temperature
Middle temperature
1.6
MPa
4.0  6.4Mpa
1.6
4.0
6.4
Normal temperature
Middle temperature
25
185
190
205
117
746
897
176
14
18
21
32
200
210
220
120
752
903
176
16
19
22
40
220
230
240
139
791
942
176
18
28
32
50
250
255
265
144
801
952
176
22
32
36
65
275
285
295
188
930
1081
176
53
57
65
80
305
310
325
208
960
1111
176
62
67
77
100
350
355
370
220
984
1135
176
86
97
108
125
410
425
440
270
1167
1382
225
98
118
135
150
450
460
475
280
1187
1402
225
160
178
198
200
550
560
570
320
1271
1486
225
294
328
358
250
670
740
750
440
1510
1725
225
 
 
 
300
770
805
820
502
1634
1849
225
 
 
 
 
Type description
Z
D
S
P
40
P
G
Self
Control
valve
 Type of actuator
Movement
character
Structure of valve
Nominal pressure
Material of valve body
Temperature type
 
 D: PS series
S:Straight travel
P:Single seat
16:1.6MP
C:carbon steel
G:Middle temperature. normal temperature is omitted.
 
 R: 3810 series
 
N:Double-seat
40: 4.0MP
P:stainless steel. casting steel is omitted.
 
 
 
H:DKZ series
 
 
64: 6.4MP
 
 
 
C:other series
 
 
 
 
 
 
XINotes for order
1.Type and name         2.Nominal diameter DN(mm)             3.Nominal pressure
4.Flow character              5.Material of valve body                     6.Rated flow factor
7.Media type and temperature range       8.beginning and ending pressure of valve(Differential Pressure)           
 9.Power voltage and control signal       10.Other special requests.

 

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Add:Si Jin Industrial Park in Baidian couty, Nantong city, Jiangsu Province,China
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