M&C TechGroup SP2000H_DIL_BR Operator's manual - Manual (Page 31)

31
Gas sampling and gas conditioning technology 2-1.1.7-ME
Please change the packing as follows:

Loosen union nut 3 and remove the jet pipe;

Loosen nut 4 and remove the dilution tube connection;

Push out the injector with the tool (Pos. 3) from the opposite side (jet pipe);

Remove the thrust collar from the nozzle;

Remove the graphite rings;

Push on the nozzle and the 3 new graphite rings;

Replace the thrust collar;

Re-install the injector with the tool. Push it up to block and press it tightly.
W A R N I N G !
The Swagelok
®
fittings must be carefully tightened to avoid damag-
ing the internal components!
16.3 REMOVING THE BYPASS-T USING OPTION ..B/..BR (180°C VERSION)
For maintenance and cleaning the Bypass-T can be dismantled completely. The figure below shows
the scheme of the Bypass-T.
Injector nozzle O-ring Bypass-T
Jet pipe Union nut 2 Nut 1 Nut 3
Sample gas
Dilution gas
Figure 17 Bypass-T with Injector and o-ring (180°C version)
Dismantle the Bypass-T as follows:

Remove probe insulating cover (see 16.1);

Remove all pipe connections on Bypass-T. These are:
- Bypass inlet union nut 1
- union nut 2 (sample outlet side)
- union nut 3 (sample inlet).

The Bypass-T is now ready for further maintenance and repair.