TapFlo Guardian system Mk3.1, Руководство по эксплуатации и техническому обслуживанию, Страница: 13 / 44

BARRIER & STOP (BARR)
Issue : 020913-B TPUK-GU31X 11
Recommended installation
The Guardian should be installed as per Fig. BARR-02. The media connection
can be directly connected with rigid pipe work using double ferrule
compression fittings, or placed independently with a flexible hose between the
pump and Guardian. Ensure the pipe work is appropriately selected for the
media and is suitable for the maximum pressure under breach conditions.
Ensure 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.2 (see page 6).
•
Media connection is connected to the barrier void ports.
•
The void ports should be linked as shown in Fig. BARR-02 (4)
•
P2 Air supply is connected to a filtered and regulated compressed air
source of 5-8 bar.
•
‘Valve O/P’ output pilots an external pilot valve, sized appropriately for
the pumps air inlet, such as a Tapflo TPUK-BV. Fig.BARR-2 (3)
•
‘Alarm O/P’ can be connected to a variety of indicators or plugged if not
used (see Alarm O/P section of this manual).
•
For ATEX applications the Guardian must be bonded using the earth tag.
Fig. BARR-02. Barrier and stop installation circuit diagram
P1 Pump air supply P2 Guardian air supply 5-8 bar
1 Guardian 2 Barrier pump (representation)
3 Pilot valve 4 Barrier connection
5 Pump suction 6 Pump discharge
7 Reset button/visual indicator 8 Alarm O/P connection
9 Reset I/P connection (see page 7 for more details)