S-RANGE
- Robust and strong housing made of Ductile Cast iron GGG40/JS1030
- Ductile Cast iron GGG40/JS1030 position indicator with clear arrow
- IP68 enclosure, fully compatible with the ALFA insert system
- Suitable for butterfly valves, ball valves, and plug valves
- Available in 14 sizes, delivering torque up to 32000 Nm
- Larger sizes on request
- Special marinecoating systems available C2 / C3 / C4 / C5 / C5M
S-Range Gearboxes – Built to Perform, Designed to Last
The S-Range gearboxes from Alfa Gears are engineered for applications where strength, accuracy, and long service life are non-negotiable.
With a heavy-duty housing, high mechanical efficiency, and a robust internal gear design, the S-Range delivers smooth operation and consistent torque under demanding conditions. This is traditional gearbox engineering done right — proven principles, modern execution.
Fully compatible with the ALFA insert system and suitable for butterfly, ball, and plug valves, the S-Range ensures straightforward installation and dependable performance in the field.
When reliability matters and downtime is not an option, the choice is simple.
Alfa Gears S-Range
Strength you can rely on. Performance you can trust.
General technical information
- Enclosure: IP67 Standard (IP68 on request)
- Working Temperature: From -50°C to 150°C (-4°Fto248°F)
- Painting: Black RAL 9005, or according customer specification
The flange connecting to valve is according to EN ISO5211 or DIN3210 (Customization). including Sintered coupling system for various shaft connections. Please click on our link to dowload the Alfa Gears Dimensions or Alfa Gears Materials specification.
Our high standards
- Precision casting cast and ductile iron GGG40 housing
- Optimal output torque, range up to 32000 Nm
- High efficient needle roller bearing
- High strength stainless steel Input shaft
- Stroke 0°- 90°(± 5°)
- Compact structure
- Grease filled for longer life
- Adjustable stopper (± 5°)
- Perfect sealing performance
- IP68 Enclosure standard
Options S-RANGE
Locking Device
Vane Indicators
Handwheels
KW Chainwheel
Inserts
Switchbox S-200
Extensions / Brackets / Adapters
API Position Indicator
More information
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