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IMI STI
CF - Fast Commutator
Compact, high-speed pilot switching unit for precise control in automation applications.
Compact, fast-switching design reduces space and installation costs.
Ensures rapid response, even with low-CV solenoid valves.
Manifold mounting removes fittings, simplifying installation.
The IMI CF Fast Commutator is a compact, high-speed switching unit designed for two 3-way valves, ensuring fast, precise operation. It enhances control response when used with IMI positioners and boosters, optimising automation processes. The manifold mounting system removes the need for fittings, simplifying installation and reducing space. Certified for SIL applications, it operates reliably in harsh conditions, including offshore. Available in anodised aluminium or stainless steel, it ensures durability while maintaining efficiency. With a lightweight design and a fail-freeze function option, it is ideal for applications requiring rapid response and cost-effective pilot switching.
Key features
Supports two 3-way valves
Works with IMI FT positioners and BV/BW boosters
Anodised aluminium or stainless steel 316
No external fittings needed
Pressure: 2.5–7 bar (design 10 bar)
Port sizes: 1/2” NPT pilot, 3/4” NPT others
Piezo solenoid option for fail-freeze
Temperature: -40°C to +85°C
Compact, lightweight design (from 3 kg)
Supports up to three units per positioner
Specifications
Supply Medium
Pneumatic
Material
Anodised Aluminium
Stainless Steel 316
Configuration
2 x 3 Way Valves
Operating Pressure (bar)
2.5 to 7.5
Port Size (")
0.75 to 0.75
Port Options
Manifold Mounting
Ambient Temperature (°C)
-40 to 85
Certification
SIL
ATEX
IECEx
IMI STI
IMI STI
IMI Maxseal
IMI STI
IMI Maxseal