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The Advantages of Butterfly Valve
The butterfly valve is a flow - control device and is widely used in many i...
HDM De-clutchable wormgear offers simple and reliable manual positioning of the valves, dampers and other quarter-turn devices when overriding existing pneumatic, electric or hydraulic
HDM de-clutchable wormgear offers simple and reliable manual positioning of the valves, dampers and others quarter turn devices when overriding existing pneumatic, electric or hydraulic quarter-turn actuators. All unit are suitable for both indoor and outdoor installation. The modular design is to provide the most efficient and effective solution to a full range of manual overriding requirements.
To engage manual operation, first pull out the lock handle and then rotate the clutch lever in anti-clockwise direction until engagement takes place. To return to automatic mode, first pull out the lock handle and then rotate the clutch lever in clockwise
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No. | Name | Material |
| 1 | Shaft | 45# Steel | |
| 2 | Seal Ring | EPDM | |
| 3 | Snap Spring | Spring Steel | |
| 4 | Upper End Cap | Aluminium Die Casting | |
| 5 | Screw | 304 | |
| 6 | Pull Rod | 304 | |
| 7 | Body | Aluminium Die Casting | |
| 8 | Seal Ring | EPDM | |
| 9 | Gear | QT500 | |
| 10 | Reducing Sleeve | QT400 | |
| 11 | Worm | Qt400 |
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Housing
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Aluminium Alloy
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Gear Guardant
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Ductile Iron
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Input Shaft
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ASTM A29M + Chrome Plate
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Working Temperature
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Up to 120°C
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Stroke Adjustment
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± 5°at each end
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Movement
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0° to 90°
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Finish Paint
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Two Polyurethane Coated
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Enclosure
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IP65
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Torque Range
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Up to 1300 Nm
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| Model | Pneumatic Actuator Cyilinder diameter Double Acting | Pneumatic Actuator Cyilinder diameter Single Acting |
| HDM-1 | HPA052DA—HPA092DA | HPA052SR—HPA092SR |
| HDM-2 | HPA092DA—HPA105DA | HPA083SR—HPA105SR |
| HDM-3 | HPA125DA—HPA160DA | HPA105SR—HPA125SR |
| HDM-4 | HPA190DA—HPA210DA | HPA140SR—HPA160SR |
| HDM-5 | HPA240DA | HPA190SR—HPA210SR |
| HDM-6 | HPA270DA—HPA300DA | HPA240SR—HPA270SR |
| New Manual Override | Countershaft | Valve Connection | Actuator Connection | ||||||||||
| b1 | N | b2 | M | D1 | 4-M1 | D2 | 4-M2 | E | D3 | 4-Φ1 | D4 | 4-Φ2 | |
| HDM-1 | 14 | 22 | 14 | 16 | Φ50 | 4-M6 | Φ70 | 4-M8 | 70*70 | Φ50 | 4-Φ6.5 | Φ70 | 4-Φ8.5 |
| HDM-2 | 17 | 22 | 17 | 18 | Φ70 | 4-M8 | Φ102 | 4-M10 | 95*95 | Φ70 | 4-Φ8.5 | Φ102 | 4-Φ10.5 |
| HDM-3 | 22 | 28 | 22 | 22 | Φ102 | 4-M10 | Φ125 | 4-M12 | 114*114 | Φ102 | 4-Φ10.5 | Φ125 | 4-Φ12.5 |
| HDM-4 | 27 | 32 | 27 | 30 | Φ102 | 4-M10 | Φ125 | 4-M12 | 129*129 | Φ125 | 4-Φ12.5 | Φ140 | 4-Φ16.5 |
| HDM-5 | 36 | 45 | 36 | 38 | Φ140 | 4-M16 | / | / | 156*156 | Φ140 | 4-Φ17 | Φ165 | 4-Φ21 |
| HDM-6 | 46 | 50 | 46 | 48 | Φ165 | 4-M20 | / | / | 160*160 | Φ165 | 4-Φ22 | / | / |
| New Manual Override | A | B | ΦC | F | T | Y | H | S | K | Ratio | Rated Input | Rated Onput |
| HDM-1 | 90 | 55 | Φ88 | 115 | 44 | 145 | 120 | 53 | 10 | 26:1 | Nm | 250Nm |
| HDM-2 | 125 | 64 | Φ110 | 135 | 62.5 | 178 | 133 | 56.5 | 13 | 28:1 | Nm | 450Nm |
| HDM-3 | 140 | 71 | Φ129 | 166 | 70 | 212 | 180 | 68.7 | 12.5 | 38:1 | Nm | 700Nm |
| HDM-4 | 188.5 | 93 | Φ174 | 202 | 94 | 280 | 195 | 84 | 15 | 54:1 | Nm | 1200Nm |
| HDM-5 | 222 | 110 | Φ205 | 245 | 110 | 315 | 225 | 92 | 15 | 80:1 | Nm | 2000Nm |
| HDM-6 | 252 | 120 | Φ275 | 280 | 125 | 320 | 252 | 102 | 15 | 78:1 | Nm | 3000Nm |
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