SIGMA S2Ba - Manual (Page 32)

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Dulcodes UV-Desinfektionsanlage
NOTE
The tightening torque of the liquid end screws should be rechecked after 24 hours of
operation.
The tightening torques of the liquid end screws should be checked every 3 months for the
PVT material version.
Start-up/Maintenance
Fig. 13
approx. 300 g
Brass rod 9 mm diam. x approx. 200 mm
Fig. 12
GUIDELINE ON VALVE INSTALLATION
In the case of suction problems during installation, place the valves on a firm surface and tap the
PTFE ball seat disk lightly with a brass rod and a hammer weighing about 300 g. Let the valves
operate in the wet state.
NOTE
• If suction problems with the pump or leakage at the overcurrent valve are encountered,
first clean the ball and the ball seat disc.
• For media containing particles larger than 0.3 mm it is absolutely essential to install a
filter in the suction line.