Pulsafeeder PulsaPro 900 EN - Manual (Page 22)

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6.2.2 Priming the Pump Head
All pumps are shipped with a fully primed hydraulic system. However, during shipping,
handling and storage some air may accumulate in the hydraulic system resulting in reduced
performance. Generally this air will be automatically purged after a short run-in period. If
necessary, rapid purging may be accomplished by:
1. Fully depressing and holding the button on top of the PTP valve while the pump is
operating at any stroke length setting above 30%.
2. With the PTP button depressed, oil should begin to flow out of the small diagnostic port.
3. Hold the valve down for several seconds after the oil is clear of bubbles to ensure a good
prime.
If the pump fails to prime refer to Section 7.2.1, Re-Priming the Pump Head.
6.2.3 Priming the Reagent Head
To prime the Reagent Head with the process fluid:
1. Open the suction and discharge line shutoff valves.
2. If the piping system design and the storage tank are such that the product flows due to
gravity through the pump, no priming is required.
In the event the discharge line contains a significant amount of pressurized air or other
gas, it may be necessary to lower the discharge pressure to enable the pump to self-prime.
3. If the installation involves a suction lift, it may be necessary to prime the reagent head
and suction line. Try priming the reagent head first.
a) Remove the discharge valve by unscrewing the four tie bar bolts and removing the
valve as a unit.
b) Fill the head through the discharge valve port with process (or compatible) liquid
c) Reinstall the valve and retighten the tie bar bolts.
4. Start the pump at the 100% stroke length setting to prime the pump. If this does not
work, it will be necessary to fill the suction line.
Filling of the suction line will necessitate the use of a foot valve or similar device at the
end of the suction line so that liquid can be maintained above the reservoir level.
a) Remove the suction valve assembly.
b) Fill the line
c) Replace the valve.
d) Remove the discharge valve assembly and fill the reagent head as described in Step 3
above.
DIAGNOSTIC WINDOW
PTP
DIAGNOSTIC
PORT