Egon
Epic Contributor
I’m guessing you meant flare fitting not compression. Compression can’t handle hydraulic pressure.
Compression fittings are the perfect choice for high pressure applications. In combination with a high pressure tubing material like steel, large compression fittings can often be used at pressures in excess of 10,000 psig.
Fittings do come in different ratings. The local hardware store will likely not have the higher rated ones.