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Product Overview
Manual override devices are used in conjunction with pneumatic actuators to enable manual valve operation during air failure or maintenance. The unit is compact, durable, and compliant with ISO5211 standards for easy integration.
Technical Parameters
| Model | Actuator Configuration | Valve Flange Connection | Actuator Flange Connection | Handwheel Diameter (mm） | Gear Ratio | Torque (Nm) |
| DA Type | SR Type | Center Distance | Shaft | Center Distance | Shaft | |
| SD-1 | DA52~92 | SR52~63 | F05/F07 | 14×14 | F05/F07 | 14×14 |
| SD-2 | DA92~105 | SR83~105 | F07/F10 | 17×17 | F07/F10 | 17×17 |
| SD-3 | DA125~160 | SR105~125 | F07/F10/F12 | 22×22 | F10/F12 | 22×22 |
| SD-4 | DA190~210 | SR140~160 | F10/F12 or F14 | 27×27 | F10/F12/F14 | 27×27 |
| SD-5 | DA240~280 | SR190~210 | F14 or F16 | 36×36 | F14 or F16 | 36×36 |
| SD-6 | DA270~300 | SR240~270 | F16 | 46×46 | F16 | 46×46 |
| SD-7 | DA270~300 | SR240~270 | F16/Φ200 | 46×46 | F16/Φ200 | 46×46 |
| No. | Name | Material | No. | Name | Material |
| 1 | Housing | SS304 | 10 | Needle Bearing | Steel |
| 2 | Cover | Aluminum Alloy | 11 | Bearing Shaft | Alloy Steel |
| 3 | Shim | SS304 | 12 | Flat Bearing | Bearing Steel |
| 4 | Large Gear | Alloy Steel | 13 | Drive Shaft | Alloy Steel |
| 5 | Handle Cover | Nitrile Rubber | 14 | Support Ring | Alloy Steel |
| 6 | Handle Plug | Nitrile Rubber | 15 | Planetary Gear | Steel |
| 7 | Gear Sleeve | Alloy Steel | 16 | Planetary Shaft | SS304 |
| 8 | Base | SS304 | 17 | Support Plate | SS304 |
| 9 | Transmission Shaft | Alloy Steel | 18 | Marking Plate | SS304 |
Features
ISO5211 standardized flange dimensions
Manual override capability for safety and maintenance
Heavy-duty cast construction with precision gearing
Wide torque range up to 3800Nm
Direct installation to pneumatic actuators
Compact size and high gear ratios ensure easy operation
Product Overview
Manual override devices are used in conjunction with pneumatic actuators to enable manual valve operation during air failure or maintenance. The unit is compact, durable, and compliant with ISO5211 standards for easy integration.
Technical Parameters
| Model | Actuator Configuration | Valve Flange Connection | Actuator Flange Connection | Handwheel Diameter (mm） | Gear Ratio | Torque (Nm) |
| DA Type | SR Type | Center Distance | Shaft | Center Distance | Shaft | |
| SD-1 | DA52~92 | SR52~63 | F05/F07 | 14×14 | F05/F07 | 14×14 |
| SD-2 | DA92~105 | SR83~105 | F07/F10 | 17×17 | F07/F10 | 17×17 |
| SD-3 | DA125~160 | SR105~125 | F07/F10/F12 | 22×22 | F10/F12 | 22×22 |
| SD-4 | DA190~210 | SR140~160 | F10/F12 or F14 | 27×27 | F10/F12/F14 | 27×27 |
| SD-5 | DA240~280 | SR190~210 | F14 or F16 | 36×36 | F14 or F16 | 36×36 |
| SD-6 | DA270~300 | SR240~270 | F16 | 46×46 | F16 | 46×46 |
| SD-7 | DA270~300 | SR240~270 | F16/Φ200 | 46×46 | F16/Φ200 | 46×46 |
| No. | Name | Material | No. | Name | Material |
| 1 | Housing | SS304 | 10 | Needle Bearing | Steel |
| 2 | Cover | Aluminum Alloy | 11 | Bearing Shaft | Alloy Steel |
| 3 | Shim | SS304 | 12 | Flat Bearing | Bearing Steel |
| 4 | Large Gear | Alloy Steel | 13 | Drive Shaft | Alloy Steel |
| 5 | Handle Cover | Nitrile Rubber | 14 | Support Ring | Alloy Steel |
| 6 | Handle Plug | Nitrile Rubber | 15 | Planetary Gear | Steel |
| 7 | Gear Sleeve | Alloy Steel | 16 | Planetary Shaft | SS304 |
| 8 | Base | SS304 | 17 | Support Plate | SS304 |
| 9 | Transmission Shaft | Alloy Steel | 18 | Marking Plate | SS304 |
Features
ISO5211 standardized flange dimensions
Manual override capability for safety and maintenance
Heavy-duty cast construction with precision gearing
Wide torque range up to 3800Nm
Direct installation to pneumatic actuators
Compact size and high gear ratios ensure easy operation
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