Security Door Controls 423PU Pneumatic Push Switch Assembly

Provide a pneumatic push-actuated input for controlled-door and physical-security applications. Security Door Controls 423PU is supplied as a pneumatic push switch assembly, giving installers a defined actuator component for systems that use pneumatic signaling rather than a conventional electrical push switch. Pressing the actuator creates the pneumatic control action used by the connected door-control equipment. The assembly fits door openings where a clearly accessible push control is needed for authorized operation, egress control, or other door-control functions determined by the connected system. Pneumatic actuation can be appropriate where the control architecture already includes pneumatic tubing and compatible receiving equipment. The switch assembly provides the user-operated interface while the connected control equipment determines the resulting door action. This configuration carries the standard 630 finish designation, commonly specified as satin stainless steel for commercial architectural hardware. That finish choice helps align the visible actuator hardware with stainless-steel door trim, plates, and adjacent access-control devices. Select the assembly where pneumatic actuation and the standard 630 finish are the required characteristics; mounting arrangement, tubing path, and connected control compatibility should match the door system design.