Description
A quarter-turn gearbox is a mechanical device designed to provide a 90-degree rotation (or a quarter turn) to an input shaft, converting rotary motion into a different angular direction. These gearboxes are commonly used in various industrial applications, such as valve automation, where a quarter-turn motion is required to control the flow of fluids or gases. They are essential components in systems where precise and controlled rotational movement is necessary. Quarter-turn gearboxes come in different types, such as worm gear, bevel gear, or spur gear configurations, each suited for specific applications based on their design and efficiency requirements.
Dimensions of handwheel DNOVA HDM
Manual doubler DNOVA HDM, body material - aluminium alloy
| Model | HDM-1 | HDM-2 | HDM-3 | HDM-4 |
| A | 90 | 125 | 140 | 188.5 |
| B | 55 | 64 | 71 | 93 |
| ØC | Ø88 | Ø110 | Ø129 | Ø174 |
| F | 115 | 135 | 166 | 202 |
| T | 44 | 62.5 | 70 | 94 |
| Y | 145 | 178 | 212 | 280 |
| H | 120 | 133 | 180 | 195 |
| S | 53 | 56.5 | 68.7 | 84 |
| K | 10 | 13 | 12.5 | 15 |
| Ø hand wheel | 180 | 200 | 280 | 320 |
| b1 | 14 | 17 | 22 | 27 |
| N | 22 | 22 | 28 | 32 |
| b2 | 14 | 17 | 22 | 27 |
| M | 16 | 18 | 22 | 30 |
| D1 | Ø50 | Ø70 | Ø102 | Ø102 |
| 4-M1 | 4-M6 | 4-M8 | 4-M10 | 4-M10 |
| D2 | Ø70 | Ø102 | Ø125 | Ø125 |
| 4-M2 | 4-M8 | 4-M10 | 4-M12 | 4-M12 |
| E | 70*70 | 95*95 | 114*114 | 129*129 |
| D3 | Ø50 | Ø70 | Ø102 | Ø125 |
| 4-Ø1 | 4-Ø6.5 | 4-Ø8.5 | 4-Ø10.5 | 4-Ø12.5 |
| D4 | Ø70 | Ø102 | Ø125 | Ø140 |
| 4-Ø2 | 4-Ø8.5 | 4-Ø10.5 | 4-Ø12.5 | 4-Ø16.5 |
Materials of the handwheel parts DNOVA HDM
Specification sketch of the handwheel doubler DNOVA HDM, body material - aluminium alloy
| № | Name | Material |
| 1 | Stem for mounting the pneumatic actuator | Steel 45 |
| 2, 8 |
O-ring | EPDM |
| 3 | Locking spring | Spring steel |
| 4 | Upper end cover | Aluminum alloy |
| 5 | Screw | Steel 304 |
| 6 | Locking bracket (main link) | Steel 304 |
| 7 | Case | Aluminum alloy |
| 9 | Gearbox | Cast iron BCh50 |
| 10 | Transition coupling | Cast iron BCh40 |
| 11 | Gear stem | Cast iron BCh40 |
Passports and certificates
Data sheet for DNOVA HDM manual overrides for pneumatic actuators and quarter-turn valves
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
Please feel free to reach out to us for any questions or further assistance regarding your order.