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