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