GF83.40-P-2123-01GC Expansion Valve, Function

GF83.40-P-2123-01GC Expansion Valve, Function
- with CODE (580) Air conditioning or Tempmatic for USA
- with CODE (580a) Automatic air conditioning
- with CODE (581a) Air conditioning (Automatic)


Function
When the refrigerant compressor is switched on the pressure in the evaporator drops, thereby causing the diaphragm (1) to curve downwards. The control valve (3) follows the movement of the diaphragm and presses the ball (4) out of its seating against the spring (5). The opened valve enables the refrigerant to be sprayed into the evaporator. As the diaphragm movement (1) is dependent on both the intake pressure and the temperature at the evaporator outlet, only the specific quantity of refrigerant, as required for optimum vaporization, is injected .