Yes, it is.
For some odd reason, many oil pans have obstructions to the right side of the drain port. For some, this means not being able to install any of our 1st generation valves even if they're paired with an adapter.
This is where the beauty of the SX comes into play. If your drain port has an obstruction to the right of the drain port and you'd like to install a Fumoto valve, flipping the SX valve orientation will give you the same Fumoto performance, just at a different angle.