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The ZDLT type electric diaphragm control valve consists of an electronic actuator and a diaphragm control valve. It is powered by a 220V AC power supply and receives a standard 4-20mA DC electrical signal to realize flow regulation and control of corrosive media such as strong acids and alkalis, as well as high-viscosity and harmful media in process pipelines. It is applied in corrosion-resistant systems such as petroleum, chemical industry, and metallurgy.
Product features: The valve has small flow resistance and large flow capacity, no stuffing box, no external leakage, and features corrosion resistance, fire resistance, poison resistance, safety and reliability. Good corrosion resistance can be obtained according to different linings and diaphragms.
Main Technical Parameters
Nominal diameter
DN(mm)
15
20
25
32
40
50
65
80
100
125
150
200
250
rated flow coefficient Kv
8
12
16
38
60
68
90
150
300
500
600
1200
2000
nominal pressure MPa
1
actuator
Type Ⅱ
381LSA-20
381LSB-30
381LSB-50
381LSC-65
381LSC-99
output shaft thrust (N)
2000
3000
5000
6500
10000
working stroke mm
10
16
25
40
60
allowable pressure difference MPa
P1=△P
1
0.89
1
1
1
1
1
0.6
0.38
0.15
0.057
P1=P2
1
0.44
1
1
0.75
0.9
0.55
0.3
0.19
0.075
0.028
flange standard
JB/T79.1-94
flow characteristic
approximately quick opening (regulating type)
power supply voltage
220V50Hz
factory state
Electrically open; if electrically closed is required,
it should be specified in the purchase contract.
Performance Indicators
Item
Index values
Basic error (%)
≤±3.5
Hysteresis (%)
≤2.5
Dead band (%)
≤3
Deviation of start and end points (%)
±2.5
Rated stroke deviation (%)
2.5
Pure lag
≤1S
Allowable leakage (L/h)
0 for rubber diaphragms, 0.5% for polytetrafluoroethylene diaphragms, and the rated capacity of the valve (water under allowable pressure difference)
Insulation resistance
Not less than 20 MΩ
Damping characteristic
not more than three and a half cycles
Valve body material
lining material
diaphragm material
operating temperature
applicable occasions
HT200
无
chloroprene rubber
0～65℃
non-corrosive occasions, abrasives, mud
HT200
F46
fluororubber
-20～+180℃
Strong acids, strong alkalis, strong oxidants, and general organic solvents
ZG1Cr18Ni9Ti
F46
F46
-20～+200℃
It has better corrosion resistance than the above.
Valve body material
无
fluororubber
-20～+180℃
Media such as general acids, alkalis, and organic solvents
Note: The valve body can be made of other corrosion-resistant materials. In this case, the diaphragm is made of F46, and the operating temperature ranges from -20℃ to +200℃.
Overall dimensions Unit: mm
Nominal diameter
DN(mm)
ZDLT type
A
H
H1
L
15
180
562
48
140
20
568
53
145
25
578
58
155
32
593
68
165
40
600
73
190
50
610
80
210
65
630
90
240
80
225
688
98
270
100
703
108
335
125
415
810
123
375
150
835
140
410
200
896
168
540
250
993
200
650
Codes for valve body material, lining and diaphragm
Base and lining
HT200
ZG1Cr18Ni9Ti
diaphragm
none
lined with F46
lined with F3
chloroprene rubber
chlorinated rubber
F46
code
1
3
2
4
1
3
2
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2003
Total Annual:
135000000-16500000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
High-End Die-Shanghai WEYO Automation Technology Co., Ltd. was established in 2021 and is headquartered in Shanghai. It is an innovative technology enterprise that specializes in high-end industrial automation equipment, core components supply, technical services, and solution provision. With the co... High-End Die-Shanghai WEYO Automation Technology Co., Ltd. was established in 2021 and is headquartered in Shanghai. It is an innovative technology enterprise that specializes in high-end industrial automation equipment, core components supply, technical services, and solution provision. With the co...
