Declutchable Gearbox
Product Features
- Mounted between the pneumatic actuator and the valve, it allows the valve to be manually opened and closed by hand in the event of an air supply interruption or malfunction.
- It is engaged via a handle; it does not affect the actuator’s movement during normal automatic operation.
- Thanks to its self-locking worm gear mechanism, it protects the valve position against external forces.
- Compliant with the ISO 5211 (F05~F16) connection standard, it is compatible with a wide range of actuators and valves through different flange options.
- It offers an output torque range from 180 Nm to 3800 Nm across 7 different models, from SL-1 to SL-7.
Technical Specifications
Body Material
Aluminum Alloy
Gear (Worm Gear) Material
Cast Iron
Shaft / Transmission Material
Alloy Steel
Seal Material
NBR
Connection Standard
ISO 5211 (F05~F16)
Gear Ratio
26:1 ~ 98:1 (depending on model)
Output Torque Range
180 Nm ~ 3800 Nm (depending on model)
Model Selection Table (SL Series)
| Model | Double-Acting Actuator | Single-Acting Actuator | Gear Ratio | Output Torque (Nm) |
|---|---|---|---|---|
| SL-1 | DA52~DA92 | SR52~SR83 | 26:1 | 180 |
| SL-2 | DA105~DA125 | SR92~SR105 | 28:1 | 320 |
| SL-3 | DA125~DA145 | SR115~SR125 | 38:1 | 680 |
| SL-4 | DA160~DA190 | SR145~SR160 | 54:1 | 1200 |
| SL-5 | DA210~DA240 | SR190~SR210 | 80:1 | 2100 |
| SL-6 | DA240~DA270 | SR210~SR240 | 78:1 | 3000 |
| SL-7 | DA270~DA300 | SR240~SR270 | 98:1 | 3800 |


