ZHA/B Type Pneumatic Diaphragm Actuator
ZHA/B type multi-spring pneumatic diaphragm actuator change output pressure of pneumatic adjustment gauge into push rod displacement change. It can connect a straight trip control valve to change the control system output signal into disk corresponding position to realize to control valve open degree. It has force uniform, good stability, large output push, small size, lightweight, and other advantages.
- Price Term: FOB/CIF/EXW/DAP
- Package: Exported Wooden case or according to customer request
- Delivery Time: 7 to 10 working days
- Transports: By sea, by air, by high express
- Shipment Port: Shanghai Port
- Origin of Place: Jiangsu
- Warranty: 12 Months
- Features
- Specification
- Model
- Dimension & Weight
- Remark
- ZHA type: direct action, pneumatic close. When air pressure increases, the stem part would move down
- ZHB type: re-action, When air pressure increases, the stem part would move up
| Type | ZHA/B-11 | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 |
| Travel（mm） | 10 | 10、16 | 16、25 | 40 | 40、60 | 100 |
| Effective area（cm） | 200 | 350 | 350 | 560 | 960 | 1600 |
| Air interface size | M10×1 | M12×1.25 | M16×1.5 | |||
| Air supply pressure | 0.14, 0.25, 0.4 MPa | |||||
| Working temperature | -30~60ºC | |||||
| Spring scope | 0.02~0.10、0.04~0.20、0.08~0.24MPa | |||||
| Backlash | With positioner : 1%, without positioner : 3% | |||||
| Linearity | With positioner : 1%, Without positioner : ±5% | |||||
| ZH |
Action type |
Size specification |
Spring scope （ KPa） |
Handwheel structure |
| 11 |
20-100 40-200 80-240 |
Without : Without handwheel
D:top entry handwheel C: Side entry handwheel |
||
| 22 | ||||
| ZH series | A: Direct action | 23 | ||
| actuator | B:Re-action | 34 | ||
| 45 | ||||
| 56 |
| Model
Size |
ZH-22 | ZH-23 | ZH-34 | ZH-45 | ZH-56 |
| A | 285 | 288 | 365 | 475 | 585 |
| H | 300 | 323 | 417 | 520 | 720 |
| H1 | 90 | 90 | 130 | 135 | 170 |
| h1 | 40 | 41 | 41 | 54 | 61 |
| t | 18 | 18 | 23 | 26 | 34 |
| C | 95 | 100 | 130 | 150 | 180 |
| H3(MAX) | 179 | 179 | 230 | 315 | 400 |
| F | 200 | 200 | 240 | 350 | 449 |
| H2 | 106 | 115 | 170 | 195 | 270 |
| h2 | 40 | 40 | 50 | 55 | 65 |
| N-d1 | 2-d10 | 2-d10 | 4-d12 | 4-d14 | 4-d18 |
| d2 | 60 | 60 | 80 | 95 | 100 |
| D | 80 | 80 | 105 | 118 | 130 |
| Weight (kg) | 12 | 16 | 22 | 52 | 125 |
| Control valve diameter |
Stem screw |
| 3/4” | M8 |
| 20,25,32,40,50 | M8 |
| 65,80,100 | M12×1.25 |
| 125,150,200 | M16×1.5 |
| 250,300 | M20×1.5 |
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