as long as the system pressure does not exceed the rated limits of the brass fitting and the flare is executed to professional standards

By absorbing the mechanical forces of pull

This part is primarily used in Goodman GMP

it must be replaced to prevent safety hazards

JB U1-6D 3/8" SAE x 1/2" MPT Adapter as long as the systemThe JB Industries U1 6D is a high performance half union flare adapter designed for professional HVACR applications. Engineered for the rigors of field use, this adapter features a 3 8" SAE flare connection by a 1 2" MPT (Male Pipe Thread), facilitating a secure transition between refrigeration lines and threaded components. Forged from premium C360 and C370 brass in the USA, the U1 6D provides superior tensile strength and corrosion resistance