The 2811 4453 81 AIRNet fitting is a 1.5" ball valve adapter that is designed to connect your 1.5"/40mm AIRnet piping to a 1.5" NPT threaded port. The threaded port is female threads. This is designed to connect a standard piping system to AIRnet and provides a system isolation as well. This fitting is their pressure fit PF series line for easier installation.
It is best practices to use this fitting before/after an important piece of equipment, such as the outlet on an air compressor, and the inlet/outlet fittings of a dryer or filters.
This part number may also be shown as 2811445380. This fitting was extremely common in systems that utilize piping from Atlas Copco or Quincy air compressors.
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Part #: 2811 4005 80