Mc-techgroup SP2000H_DIL_BR Operator's manual Manual de usuario descargar pdf (Pagina 30)

Gas sampling and gas conditioning technology 2-1.1.7-ME

16.2.3 CHANGE AND CLEANING OF THE INJECTOR

NOTE!

For cleaning the injector it is not necessary to remove it out of the

dilution cross. Clean the nozzle mechanically. For the 180°C-

version the complete cross can be cleaned up in an ultrasonic

bath.

W A R N I N G !

The complete cross of the 320°C-version can not be cleaned in an

ultrasonic bath. Otherwise the graphite packing will be damaged !

Before cleaning the nozzle with compressed air remove the critical

orifice first (s. 16.3) !

16.2.4 CHANGE OF THE O-RING AT THE INJECTOR (180°C-VERSION)

Please change the o-ring 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 o-ring from the nozzle;

 Push on the o-ring on the nozzle;

 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!

16.2.5 CHANGE THE PACKING AT THE INJECTOR (320°C-VERSION)

All the time when the injector is removed please change the packing (320°C- version).

Figure 14 shows the injector with the graphite packing.

Thrust collar

Nozzle

Graphite rings

Part No.: 93S4002

Injector complete, DIL-H320

Pos 1 (Fig.15):

Packing for injector nozzle

consisting of 3 graphite rings

 4/ 6 – 1,5mm thickness

Part No.: 93 S 4010

Figure 16 Injector 320°C version with graphite packing

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Mc-techgroup SP2000H_DIL_BR Operator's manual Manual de usuario Pagina 30