TapFlo Guardian system Mk3.1, Operation & Maintenance Manual

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DEAD-HEAD & RESTART (DH&R)
Issue : 020913-B TPUK-GU31X 31
Recommended installation
The Guardian should be installed as per Fig. DH&R-02.
Make sure the Guardian does not cause any tensions or strain on the pump or
mounting.
The Guardian must have an air supply of at least 1 bar greater than the
required set point.
•
Function plate must be in Pos.1 (see page 6).
•
Media connection is T’d in to the discharge pipe work of the pump.
•
Air in is connected to a filtered and regulated compressed air source.
•
‘Valve O/P’ is plugged.
•
DH&R O/P pilots an external pilot valve, sized appropriately for the pumps
air inlet, such as a Tapflo TPUK-BV.
•
Alarm O/P is not representative and should not be used.
•
For ATEX applications the Guardian must be bonded using the earth tag.
Fig. DH&R-02. Dead-head and restart installation circuit diagram
P1 Pump air supply P2 Guardian air supply 5-8 bar
1 Guardian 2 Pump (representation)
3 Pilot valve 4 Guardian connection
5 Pump suction 6 Pump discharge