RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo (2008)
Expansion Block/Orifice Tube: Description and Operation
Description
DESCRIPTION
The fixed A/C orifice tube is installed in the rear section of the A/C liquid line and provides a restriction in the liquid refrigerant line between the A/C
condenser and the A/C evaporator. This restriction established the pressure differential between the high and low-pressure sides of the A/C system.
The A/C orifice tube includes a diffuser screen (1), O-ring seals (2) to seal it to the inner wall of the A/C liquid line, an inlet filter screen (3) and the
fixed orifice (4).
