A flexible multi-functional system for operating one or two dispensing valves and controlling peripheral equipment such as advancing slides, rotospray units etc. Process functions are programmed by means of a keypad. Faults are indicated and signalled electrically. The quantity of product dispensed is determined both by the product pressure and by the length of time that the valve is opened. This system can be integrated into fully automated production lines using its PLC interface. The Solenoid Valve Module 97204 brings pneumatic energy close to the dispensing valves, which results in high reaction speeds and eliminates complex pneumatic lines. All signals are indicated by LEDs.