FD90 Series SAE J1502 Interchange Diagnostic Quick Disconnect, Male Half, -04 Coupling, 1/4-18 Male NPT

Absolutely, these FD90 series quick disconnects are made for diagnostic pressure testing of hydraulic systems.

Flush face valving on this coupling keeps fluid loss down to 0.10 cubic centimeter per connection cycle, and air inclusion stays at 0.02 cubic centimeter. That makes it well suited for diagnostic pressure testing without the mess and air contamination you get from cracking lines. The push-to-connect sleeve locks with one hand, so you can get in and out of tight spots without needing two people on the job.

This FD90 series coupling is designed specifically for diagnostic pressure testing in hydraulic systems, which would include farm equipment. It's rated to handle disconnection under pressure up to 500 psi.

You can disconnect it under pressure, up to 500 psi. The self-sealing valve handles that without needing to relieve the system first. Fluid loss on disconnect is minimal too, rated at 0.10 cubic centimeters, so you're not making a mess every time you pull it.