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IMI STI
SC - Linear Damper Actuator
Precise pneumatic actuator for dampers, valves, and flow control.
Built-in lubrication system for maintenance-free operation.
Customisable stroke lengths for diverse applications.
Air-lock device for compact and efficient design.
The SC series linear pneumatic actuators provide precise control of dampers, louvres, butterfly valves, and ball valves in power plants, refineries, pipelines, and marine environments. Built with aluminium alloy or corrosion-resistant carbon steel, they feature customisable strokes from 150mm to 300mm and cylinder diameters from 63mm to 420mm. A double-guide system ensures smooth, accurate operation without overshoot, while the built-in lubrication system eliminates the need for routine greasing. Designed for fast response times and maintenance-free operation, SC actuators deliver efficient, long-term performance in demanding flow control applications.
Key features
Cylinder sizes: 63mm to 420mm.
Stroke lengths: 150mm to 300mm.
Corrosion-resistant materials.
Double-acting pneumatic design.
Air-lock device saves space.
Built-in lubrication system.
Customisation available.
Specifications
Supply Medium
Instrument Air
Material
Aluminium
Stainless Steel
Carbon Steel
Design Type
Double Acting
Operating Pressure (bar)
10 to undefined
Ambient Temperature (°C)
-20 to 70
Cylinder Diameter (mm)
63
420
Maximum Stroke (mm)
400
Manual Override
Yes
Certification
PED
ATEX
SIL3
GOST
Documents
Brochure
IMI STI_Product Brochure_SC_2024-12-18.pdf
1.69MB
English
Certification
IMI STI IECEx.pdf
260.74kB
English
IMI STI ATEX.pdf
194.02kB
English
IMI STI PER Module H.pdf
428.94kB
English
IMI STI PED Module H.pdf
347.42kB
English
IMI_CCI_Korea_ISO_9001_2015_26Jun26.pdf
246.85kB
English
IMI STI PED Module H1.pdf
348.07kB
English
IMI STI PER Module H1.pdf
429.52kB
English
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