BUCHI Syncor Polyvap - Manual (Page 16)

Syncore ® Accessories
14 version E
Function,putting into operation, operation and maintenace
• Fasten the cold water supply to the connection units a
and b using GL14 screwed fittings
• Join the connection element c to the valve unit by
means of a GL 14 sealing cap d.
Temperature of the cooling medium
The temperature of the cooling medium significantly affects
the condensation of the solvent vapors. Select a cooling
medium temperature that lies at least 15 to 20 °C below
the vapor pressure of the sample. Efficient cooling in con-
densation is ensured whenever the solvent condenses out
completely in the first third of the cooling coil.
In addition to the condensation done under a vacuum,
we recommend also carrying out a second condensation
downstream from the vacuum pump. Re-condensation
under atmospheric pressure downstream from the vacuum
pump (e.g., using the BUCHI VAC V-503 diaphragm pump)
makes it possible to condense any fumes of solvents and
chemicals that may still be present efficiently and safely.
Figure 16: Cooler coonections
a
b
c
d