| ZAZP、ZAZN Electric Straight-through Single/Double Seated Control Valve |
ZAZP、ZAZN
Electric Straight-through Single/Double Seated Control Valve |
| ZAZP/ZAZM Electric Single Seated/Sleeve Control Valve receives DC signal from adjust instrument, outputs linear movement corresponding to the input signal, controls the section between the seat and core and changes the flow of medium, so that the valve could keep the parameters at the set value. It is widely used to automatically control the production in power, metallurgy, chemical, petrol, textile, medicine and paper industries.
The series products with nominal pressure: PN1.6、4.0、6.4 MPa., nominal diameter: DN20～300, receiving signal 0～10mA.DC or 4～20mA.DC, working temperature: -40℃～450℃.
Electric Single Seated Control Valve is suitable to situation of small pressure differential and high viscosity mediums or mediums with particles, and electric sleeve control valve is suitable to situations with big pressure differential and not strict in leakage.
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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) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
400 |
| Rated Kv |
Single Seat |
5 |
8 |
12 |
20 |
32 |
50 |
80 |
120 |
200 |
280 |
450 |
800 |
1200 |
-- |
| Double Seat |
-- |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
1000 |
1600 |
2700 |
| Rated Stroke L(mm) |
10 |
16 |
25 |
40 |
60 |
100 |
| Nominal Pressure PN(MPa) |
1.6、4.0、6.4 |
| Intrinsic Flow Characteristic |
Linear、Equal percentage |
| Allowed Leakage |
10-4、10-3 |
| Working temperature |
-20～200、-40～250、60～450 |
| input signal(mA.DC) |
0～10、4～20 |
| Power |
220V/50Hz |
| Position of failure |
Electric- open,Electric-close |
Remarks：The characteristic of the products conforming to JB/T7387-94.. |
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| Chart of Flow Characteristic |
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| Overall Size
(mm) |
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