According to the Uniform Mechanical Code, 3/4″ steel pipe used to convey liquid refrigerant shall have a wall thickness of NOT less than that specified for schedule ____ pipe when field joints are NOT welded.

According to the Uniform Mechanical Code, 3/4″ steel pipe used to convey liquid refrigerant shall have a wall thickness of NOT less than that specified for schedule ____ pipe when field joints are NOT welded.