• Booster Relay
• Selector Relay
• Adding Relay
• Averaging Relay
• Subtraction Relay
• Fixed Ratio Relay
• Square root extractor
• Function generator

Time function Relays

• Delay Relay
• Delay element
• PI Relay
• PD Relay
• Trend Relay

In different areas of process control there are problems which can easily be solved with special pneumatic limit signal relays, time relays or computing relays. For instance: signal monitoring, signal selection, signal adaption, safety control, etc.