Product Description
Spirax Sarco SP400 Smart Electro-Pneumatic Valve Positioner
The Spirax Sarco SP400 is a highly efficient and reliable smart electro-pneumatic valve positioner engineered for the precise control of pneumatic valves. Manufactured in Italy, this advanced unit operates using a standard 4-20 mA analog input and accommodates a versatile supply pressure range of 1.4 to 7 bar (20 to 100 psi). It delivers an output of 0 to 100% of the supply pressure, guaranteeing accurate, responsive single-acting operation with a linear flow characteristic. Equipped with a clear local LCD display for easy monitoring and a durable mounting bracket for secure installation, the SP400 (Software Revision 7.01) ensures seamless integration, simplified commissioning, and superior operational performance in industrial fluid control systems.
Technical Specifications:
- Brand: Spirax Sarco
- Model: SP400 (Product Code: SP400000000000)
- Input Signal: Analog 4-20 mA
- Supply Pressure: 1.4…7 bar (20…100 psi)
- Output: 0…100% supply pressure
- Operation Type: Single Acting
- Characteristic: Linear
- Software Revision: 7.01
- Display: Local LCD display included
- Origin: Made in Italy

Spirax Sarco SP400 Smart Electro-Pneumatic Valve Positioner
Optimize your pneumatic valve control with the Spirax Sarco SP400 Smart Electro-Pneumatic Positioner. Featuring a 4-20mA analog input, 1.4-7 bar supply pressure range, and an intuitive LCD display, this single-acting positioner delivers highly accurate, linear performance for demanding industrial applications.




