The ‘AND’ logic element is a crucial component in pneumatic systems, designed to enhance safety and control by ensuring that two conditions are met before activating a valve. Its application is particularly beneficial in scenarios where interlocking safety mechanisms are required.

• Dual Signal Requirement:

  • The ‘&’ logic element requires air signals from two separate sources to release a signal through its output port.
  • If only one signal is received, the output remains inactive, preventing unintended operation.

• Safety Enhancement:

  • Often used in tanker systems to ensure operational safety.
  • For example, it ensures a tanker’s valve is actuated only when vent valves are open, reducing the risk of overpressure or vapor escape.