
Eliminating suction problems (only for single ball valves with
PTFE ball seat)
For suction problems occurring during start up:
–
Exclude the possibility that there are foreign bodies in
the valve.
–
Place the valve on a stable surface.
–
Using a hammer (1) and a brass bar (2), gently tap the
PTFE ball seat above the valve ball - see figure below.
–
Then with the valve in a damp condition allow it to prime.
8.2 Calibrate the stroke control drive (Option)
The stroke control drive is calibrated to the ordered dosing rate ex-factory.
In event that you want the stroke control drive to be calibrated to another
dosing rate, please contact ProMinent.
Fig. 15: Tapping the valve set disc
Start up and operation
39
Содержание Hydro 3 Series
Страница 17: ... refer to Technical Data chapter Ambient conditions Storage transport and unpacking 17 ...
Страница 95: ...95 ...