Comparison of Individual Valves and Valve Terminals

This white paper examines the comparison between individual valves and valve terminals for pneumatic automation in process control systems. It outlines the technological and economic differences between the two options, focusing on aspects such as cost, commissioning, and diagnostic capabilities. The paper presents a cost comparison that highlights the advantages of valve terminals, particularly in systems where multiple valves are closely positioned. It discusses the integration of valve terminals in safety instrumented systems (SIL) and provides practical examples of their application in various industries, including precision chemicals and pharmaceuticals. The paper details the modular nature of valve terminals, which allows for efficient setup and operation of decentralized automation solutions. Additionally, it addresses the importance of proper planning and component compatibility to avoid costly operational issues. The findings suggest that valve terminals can lead to significant cost savings and improved system availability through enhanced diagnostics and reduced installation efforts.