English to Italian Tech/Engineering Mechanics / Mech Engineering scambiatore di calore a piastre

Right and left plates:
On a right plate the flow runs from hole 2 to hole 3 or reverse from hole 3 to hole 2.
On a left plate the flow runs from hole 1 to hole 4 or reverse from hole 4 to hole 1.
The opening of the corner holes are described in a “plate code index”. For instance 1234 means that all corner holes are open.
Every plate can be identified by the gasket configuration, the plate code index and thermal short or thermal long execution.

Grazie!!!!