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ZMAW Pneumatic Control Butterfly Valve
Caliber range: DN50-1000mm Pressure range: PN0.6MPa Applicable temperature: -40~600 ℃ Product application: ZMAW pneumatic thin film regulating butterf
Product details
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MAW Pneumatic Control Butterfly Valve
CHARACTERISTICS
Product model: ZMAW
Product Name: Pneumatic Control Butterfly Valve
ZMAW pneumatic control butterfly valve is a rotary control valve with advantages such as small volume, light weight, and high rated flow coefficient. It is particularly suitable for controlling large-diameter, high flow, thick and turbid slurry or boiler kiln flue gas.
There are three types of products in this series: standard type, high temperature type, and sealed type. The nominal pressure levels of the product are 0.1, 0.25, 0.6, 1.0, 1.6, and 2.5 MPa, with diameters ranging from 50mm to 1000mm. The leakage levels are II and VI, and the flow characteristics are approximately equal percentages.
When switching from pneumatic to manual mode, the method of using the side mounted handwheel mechanism is as follows: pull out the positioning pin, pull up the handle, engage the worm gear and worm, press in the positioning pin, and rotate the handwheel to change the flow cross-section. When manually switching to pneumatic, simply turn the handle by pulling it.
[Component Materials]
Medium: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve plate: carbon steel, 1Cr18Ni9Ti
长 轴： 1Cr18Ni9Ti
Valve seat: carbon steel, stainless steel lined with synthetic rubber or reinforced polytetrafluoroethylene
Internal bearings: Bronze, stainless steel overlay titanium alloy
Packing: polytetrafluoroethylene, flexible graphite
Valve cover: carbon steel2、 Main technical parameters
publicMeasuring diameter mm
50
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
Rated flow coefficient Kv
85
220
340
530
770
1360
2130
3060
4160
5450
6900
8500
12200
16600
21700
27540
34000
Nominal pressure MPa
0.6
Rated angle °
70
Signal pressure KPa
20~100
flow characteristics
Approximately equal percentage
Medium temperature ℃
-20-200 (room temperature); -40-450 (medium temperature); -40-600 (high temperature)
takeover flange
According to JB78-59 clamp type flange connection
Signal connection screw hole
M16×1.5
Equipped with actuator
Film
ZMA -2
ZMA -3
ZMA -4
ZMA -5
piston-type
ZSC - 45
Valve body material
Zg230 -4501cr18ni9 zg1c18ni9thizgra18ni12mo2ti
Can be equipped with accessories
Handwheels, locators, air filters, pressure reducers, etc.
3、 Main external connection dimensions
Nominal diameter DN (mm)
D1
D2
L1
L2
n―d
H
H1
H2
D
L3
Distance between flange end faces
50
110
92
200
4-14
637
582
382
280
278
60
80
150
125
92
200
4-18
644
582
382
280
278
60
100
175
145
102
210
4-18
654
582
382
280
278
60
125
200
175
117
234
8-18
723
636
436
325
278
60
150
225
200
130
247
8-18
736
636
436
325
278
60
200
280
255
172
287
8-18
763
636
436
325
278
70
250
335
310
197
327
12-18
1008
853
615
410
376
70
300
395
362
227
351
12-23
1034
853
615
410
376
80
350
445
412
252
376
12-23
1059
853
720
410
376
80
400
495
462
296
432
16 - 23
1238
1007
720
495
376
100
450
550
518
321
459
16 - 23
1266
1007
720
495
376
100
500
600
568
346
484
16 - 23
1291
1007
796
495
376
100
600
705
755
480
565
20-25
1486
1109
796
180
150
700
810
860
530
615
24 - 24
1539
1109
796
180
150
800
920
975
595
675
24-30
1596
1109
796
180
200
900
1020
1075
685
770
24-30
1661
1124
796
180
200
1000
1120
1175
735
810
28-30
1711
1124
796
180
200
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