
F03-02-04-005
Installation
Refer to the Trim Chart applicable to the specific Inbal
Deluge Valve model in use.
1. When the Inbal Deluge Valve is delivered, carefully
unpack and visually check that there has been no
damage to the operating components, piping, and
fittings.
2. Always flush the pipelines before installing the Inbal
Valve.
3. Place the Inbal Valve in the piping at the outlet of the
Water Supply Valve. Verify that the arrow on the valve
Housing matches the actual flow direction. Determine
which side the system will be accessed from and locate
the Inbal Deluge Valve accordingly.
4. Install the Inbal Deluge Valve in the pipeline. Use
gaskets, bolts, stud bolts, bolt sleeves, and nuts as
required by the valve ends.
5. The Control Trim is supplied fully preassembled. Refer to
the applicable Trim Chart and Installation Guide.
6. The water pressure supply to the control trim must
always be sourced from the inlet of the Water Supply
Valve through a ½" pipe.
7. Connect the wet pilot line to the Flow Release Pilot
(F.R.P.). Refer to Graph (1) which shows the maximum
elevations above the Deluge Valve at which the release
line (pilot sprinklers or manual release) should be
installed. An Anti-columning Device is required when the
release line elevation exceeds the figure corresponding
to the minimum water supply system pressure in which
the Inbal Deluge Valve is planned to perform.
8. It is recommended to install an inspector's test valve on
the hydraulic release system. The inspector's test valve
is a locked closed ball valve with an outlet end orifice
equivalent to the smallest orifice of the releasing device
provided on the system. The inspector's test valve may
be used to verify adequate operation of the deluge
system when a releasing device operates.
9. Set the Inbal Deluge Valve by following the Resetting
procedure.
10.Test the Inbal Valve, the trim, and the alarms according
to the Testing procedure.
Resetting
Maintenance, Inspection, & Testing
The Inbal Deluge Valve system must be reset and restored
to service as soon as possible after automatic, emergency,
or manual actuation.
The procedure is as follows:
1.Close the Water Supply Valve. Water flow alarms are
reset.
2.Close the Trim Shutoff Valve.
3.Open the Flow Test Valve and Drain Valve, allowing all
the water to drain.
4.Inspect and replace any portion of the detection system
subjected to fire conditions.
5.Inspect the trim and alarm Y-Strainers. Clean if
necessary.
6.Verify that the Emergency Release Valve is in a closed
position.
7.Open the Trim Shutoff Valve. Push and hold the reset
knob on the F.R.P. and allow water pressure to build up in
the trim and in the Inbal Valve Control Chamber. Wait
and verify that the pressure readings on both pressure
gauges are equal.
8.Release the reset knob on the Flow Release Pilot (F.R.P).
9.Close the Flow Test Valve.
10. Fully open the Water Supply Valve. Verify that there is no
flow from the Drain Valve, downstream of the Inbal
Valve.
11. Close the Drain Valve.
It is recommended that periodic inspections and tests be
conducted by qualified personnel to ensure that the Inbal
Deluge Valve and related equipment are in good operating
condition. The inspection and testing activities should be
done according to NFPA Standards, the guidelines and
regulations of the authorities having jurisdiction, and the
following instructions. It is recommended that the Deluge
Valve be tested, operated, cleaned, and inspected at least
on a routine basis.
A weekly Inspection is recommended:
1. Verify that the Water Supply Valve is sealed in fully open
position.
2. Verify that the required water pressure is being applied to
the Inbal Deluge Valve inlet and trim.
3. Verify that the Trim Shutoff Valve, Alarm Test Valve,
Inspection
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