1-Inch Coupling Tests

Picture shows the 1” coupling hand tight in a water bath at 1000 psig nitrogen pressure. No bubbles indicate zero leakage

Picture shows the 1” coupling hand tight holding a hydraulic pressure of 10,000 psig

Picture shows the 1” coupling hand tight holding a -20” Hg vacuum at –10 deg C.

The 1” coupling was taken out of the cooler at

–10 deg C and immediately placed in a bath of

+100 deg C water. Vacuum remained at –20” Hg.