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IMI STI
SA-1 - Analog Valve Positioner
Compact analogue positioner for precise valve control in demanding industrial environments.
Precise valve positioning with stable air distribution.
Compact and rugged design for harsh conditions.
Compatible with single and double-acting actuators.
Features
The SA-1 is a durable analogue positioner available in pneumatic and electro-pneumatic versions. Designed for automated systems in oil and gas, refining, chemical, power, and metal industries, it operates with a 3-15 psi pneumatic signal or a 4-20 mA electro-pneumatic signal. Using a balanced-forces principle, it regulates air distribution via an internal spool. Suitable for single and double-acting actuators, it accommodates strokes between 2-100mm. Featuring a compact metallic housing, IP65 protection, and options for explosion-proof and intrinsically safe configurations, the SA-1 is designed for reliable operation in harsh conditions, including sandstorms and corrosive environments.
Key features
Pneumatic and electro-pneumatic versions
Aluminium housing with IP65 protection
3-15 psi or 4-20 mA input signal
Internal spool valve
Operating pressure: 2.5 – 7 bar
No external feedback system
Special characterisation options available
Explosion-proof and intrinsically safe versions
Optional stainless steel spool valve
Suitable for extreme ambient temperatures
Specifications
Ambient Temperature (°C)
-40 to 85
Signal
3-15 psi
4-20 mA
Housing Material
Anodised Aluminium
Flow (Cv)
0.34
0.34
Operating Pressure (bar)
2.5 to 7
Certification
IP 65
Resources
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