Volkswagen Golf Service & Repair Manual: Vapour pressure
| In an enclosed container that is not completely full,
refrigerant evaporates as vapour at the surface in a quantity
sufficient to form an equilibrium between vapour and liquid.
This equilibrium develops under pressure and is often called
vapour pressure. The vapour pressure is temperature-dependant
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| Physical properties of R134a |
| Because the vapour pressure curves of R134a and other
refrigerants are in part very similar, unique identification on
the basis of pressure alone is not possible. |
| The air conditioner compressor used for R134a is lubricated
with special synthetic refrigerator oils, such as PAG oils (polyalkylene
glycol oils). |
|
Refrigerant R134a is currently available under the following
trade designations:
H-FKW 134a
SUVA 134a
...
In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium.
However, impurities such as chlorine compounds in th ...
Other materials:
Safety precautions when working on subframe
It is not permitted to carry out welding and straightening
operations on load-bearing or wheel-guiding suspension
components.
Always renew corroded nuts and bolts.
Bonded rubber bushes can be twisted only to ...
Removing and installing humidity sender for air conditioning system -G260-
The humidity sender for air conditioning system -G260- and
the light/rain sensor -G397- form one component and are
installed depending on vehicle equipment.
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Removal and installation procedure is described in
→ E ...
Assembly tools for single wire seals
The assembly tools serve as a means of sliding the single
wire seals fully into the contact housing without damage and
thereby assure complete sealing between single wire and contact
housing.
Four assembly tools for single wire seals are ...
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Trade names and designations
Effects on metal