Union Pury 250e, User Manual

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Installation Manual Pury 250e
10
Manual Pury 250e 2006-06-08
3.2. Installing the gas lines
If a heated line is installed, insulate the line where it connects to the unit. If a S/S line
is used, thermal decoupling may be required at the sample gas input to avoid any
overheating due to heat conducted from the heated line.
Gyrolok 6x1 (1/4” tube) threaded connections are provided. The dimensions have
been adapted for the required consumption and pressure drop. 6x1 (1/4”) SS tubing
is recommended for the process gas outlet at the top to the capillary cooler. If
necessary, an additional filter can be connected at this point.
The sample gas line is connected to the calorimeter via a pressure regulator or
directly depending on the available supply pressure after the gas cooler. The
additional pressure regulator is required if the process gas pressure is above 15-18
mbar (6 – 8” H2O).
The pressure drop through the unit is about 5 mbar. If the specified pressure at the
gas outlet is too low for the analyzer a sample gas pump must be used. This can be
supplied as an option on request. The pump is designed for a delivery volume of 250
l/h max.
Figure 2 : Typical gas connection diagram