1/4" NPT Threaded Funnel

thingiverse

This is a compact tool with a 1/4 inch NPT threaded outlet. I required a means to introduce liquid product into the standard 1/4 inch quick connectors commonly found on air tools. In my setup I have a 1/4 inch coupler connected to a steam boiler. When necessary, I can attach a pressure gauge to calibrate or verify the vaporstat readings. Disconnecting the (expensive) gauge from the boiler protects it but makes it challenging to add substances into the boiler for rust prevention, foam control, pH adjustment and other maintenance tasks. This funnel resolves that challenge.