TapFlo Guardian system Mk3.1, Operation & Maintenance Manual

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BARRIER & STOP (BARR)
Issue : 020913-B TPUK-GU31X 14
Operation
•
To start the pump, apply compressed air to the pump and Guardian.
•
The pump should continue to run until either
1. Air to the pump and/or Guardian is interrupted.
2. The Guardian experiences an increased pressure, above the set point,
which is represented by the rest button of the Guardian being extended
(see post trip actions detailed below)
•
To stop the pump, interrupt the air to the pump and/or Guardian.
Post trip actions
If the Guardian trips the system must be regarded as in
breach!
Thereafter the pump, Guardian and associate pipe-work should be
stripped, thoroughly cleaned and neutralized, checked and
maintained before being returned to service. Refer to the
‘Maintenance’ section of this manual for procedures to safely
maintain the Guardian. Please refer to the pump manual for
details on how to safely maintain the pump.
The reset button can be used momentarily as an over-ride to
purge the pump prior to maintenance, utilizing the back-up
diaphragms. Press and hold the reset button for the duration of
the purge, the button should oppose being pressed when the
pressure exceeds the set point. The over-ride function should only
be used under controlled conditions.
Abuse of the reset/over-ride could result in failure of the
back-up diaphragms, allowing media to escape through the
pumps exhaust, causing risk to plant and personnel!
Once the system has been rebuilt the set up procedure must be
completed. Refer to set point adjustment section of this manual.
(Page 13).