In detail
What it is made of
How it works
Manual quarter-turn gearbox
The number that matters
Nominal pressure
16bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
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
- Body material
- Aluminium alloy
- Maximum allowable temperature
- 120 °C
- Connection type
- Flanged
- Nominal pressure
- 16 bar
- Type of seal
- PTFE
- Torque
- 1200 Nm
- Shaft shape square
- 27x27 mm
- ISO - flange type
- F10,F14,F12
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal