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English to Italian translations [PRO] Tech/Engineering - Mechanics / Mech Engineering
English term or phrase:balance line porting
-Suction Pressure Limit Switch-
The solenoid valve (L4) is energized during normal unit operation, providing external **balance line porting** to the main expansion valve (V6), allowing the valve to admit refrigerant to the evaporator when suction pressure is below 50 psig.
The balance line porting provided by solenoid valve (L4) eliminates the influence of pressure drop through the evaporator.