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SA-1 analogue positioner with robust cylindrical body and multiple connection ports.
SA-1 analogue positioner with cylindrical metallic body and STI-branded black module.

IMI STI

SA-1 - Analog Valve Positioner

Compact analogue positioner for precise valve control in demanding industrial environments.

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    Precise valve positioning with stable air distribution.

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    Compact and rugged design for harsh conditions.

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    Compatible with single and double-acting actuators.

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

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Pneumatic and electro-pneumatic versions

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Aluminium housing with IP65 protection

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3-15 psi or 4-20 mA input signal

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Internal spool valve

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Operating pressure: 2.5 – 7 bar

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No external feedback system

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Special characterisation options available

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Explosion-proof and intrinsically safe versions

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Optional stainless steel spool valve

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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

Documents

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IMI STI - Positioners brochureIMI STI Product Brochure PT 2024-12-18.pdf
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IMI STI SA-1 Analogue Positioner brochureIMI STI Product Brochure SA 2024-12-18.pdf
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IMI STI - SA-1 - Analog Valve Positioner - Instruction Manual4020 r02 It-En.pdf
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IMI STI ATEXIMI STI ATEX.pdf
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IMI STI ISO 9001 2015IMI STI ISO 9001 2015.pdf

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