| ZDLN Electronic Straight-through Double Seated Control Valve |
ZDLN
Electronic Straight-through Double Seated Control Valve |
ZDLN Electronic Straight-through Double Seated Control Valve adopts the double guide structure of top and bottom. It is equipped with 9610L Electronic Straight Stroke Electric Actuator. The features are compact in structure, little in weight, sensitive in action, big in valve capacity, high in precision of flow characteristic and easy in assemble and disassemble. It is widely used in controlling parameters of mediums, such as pressure, flow, temperature and fluid level, and keeping them at preset value, especially suitable to situation of clear fluid with bigger pressure differential and not strict in leakage.
The series includes various types of standard, bellows sealing and insulating sleeve, with nominal pressure PN1.6、4.0、6.4, nominal size DN25～400, working temperature -250℃～560℃ and leakage level Ⅲ or level Ⅳ. The flow characteristic is linear or equal percentage. Various types are available to be chosen.
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| Material |
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Body, bonnet： HT200、ZG230-450、ZG1Cr18Ni9Ti
Core, seat： 1Cr18Ni9Ni,Stellite Bead Welded
Packing： PTFE, flexible graphite, stainless bellows
Gasket： Asbestos rubber sheet, 1Cr18Ni9Ti, graphite spiral wound gasket
Push rod, stem：2Cr13、1Cr18Ni9Ti
Sleeve： 2Cr13
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| Main Parameter |
Nominal Diameter DN(mm)
Diameter of seat(mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
400 |
| Rated Kv |
Linear |
12.0 |
16.4 |
30.3 |
48.3 |
75.9 |
121 |
193.6 |
302.5 |
484 |
759 |
1210 |
1936 |
2920 |
| Equal percentage |
11 |
17.6 |
27.5 |
44 |
69.3 |
110 |
176 |
275 |
440 |
693 |
1100 |
1760 |
2700 |
| Rated Stroke L(mm) |
16 |
25 |
40 |
60 |
100 |
| Nominal Pressure PN(MPa) |
1.6、4.0、6.4 |
| Intrinsic Flow Characteristic |
Linear、Equal percentage |
| Intrinsic Adjustable Ratio R |
50：1 |
| input signal(mA.DC) |
0～10、4～20 |
| Power |
220V/50Hz |
| Position of failure |
Full open、Full close、Self-locking Position |
| Allowed Leakage |
10-6 |
| Working temperature |
ormal temperature |
-20～200、-40～250 |
| Radiating |
-40～450、-60～450 |
| High temperature |
45～560 |
| Cryogenic |
-60～100、-100～200、-200～250 |
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| Valve Type |
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| Overall Size
(mm) |
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