A/C system, components: Restrictor

1996 Audi A4 Base, StandardSECTION Restrictor
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of A/C Condenser
G02722693Courtesy of AUDI OF AMERICA, INC.

The restrictor (orifice tube) restricts and controls refrigerant flow to the evaporator thus lowering refrigerant temperature and pressure.

Upstream of the restrictor, the refrigerant is hot and under high pressure. Downstream of the restrictor, the refrigerant is cold and under low pressure.

A strainer located upstream of the restrictor filters out any dirt or particles. Another strainer located downstream of the restrictor atomizes the refrigerant before it enters the evaporator.

Fig 2: Identifying Arrow A On Restrictor (Orifice Tube)
G02722694Courtesy of AUDI OF AMERICA, INC.
RENDER: 1.0x

NO RELATED

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