:E>5" !# HD 235PAGE 3 OF 17
RESETTING PROCEDURE FOR THE
DELUGE VALVE
(i) Close the upstream side stop valve provided
below the deluge valve
ii) Open both the drain valves/ drain plugs and close
when the flow of water has ceased
(iii) Close the release device/replace the Sprinkler
if release was through Sprinkler/QB Detector
iv) Inspect and release if required, or close the
section of the detection system subjected to
"Fire condition"
(v) In case of dry pilot detection system, open the
air supply valve to build-up air pressure. Open
the priming valve fully. Open the upstream side
of the stop valve provided below the Deluge
valve. No water should flow into the system
vi) Where priming shut off valve is provided for
resetting, in addition to above steps press the
knob on actuator while resetting
CAUTION
(a) Do not close the priming valve, downstream
and upstream stop valves, while the system is
in service
(b) The releasing device must be maintained in the
open position, when actuated, to prevent the
deluge valve from closure if anti shut off valve
is not provided
(c) While using a Deluge valve in the wet pilot
system the height and the length of the wet
pilot detection line is to be limited as shown in
the wet pilot sprinkler height limitation graph
(d) Do not connect the Sprinkler Alarm outlet drain
line to close a common drain as it may create
back pressure and Sprinkler Alarm may not
function
(e) Deluge valve must have support to absorb
sudden opening or closing vibration shock to
the piping
(f) To avoid water damage, take precautions when
opening the water supply main control valve,
since water will flow from all open system valves
(g) The responsibility of maintenance of the
protection system and devices in proper
operating condition lies with the owner of the
system
SYSTEM TESTING PROCEDURE
(i) Keep the upstream side of the stop valve
partially open. To avoid water flow to system
side close the system side stop valve. This valve
is to be kept in open position after the testing
is completed
(ii) Let any of the release devices to trip. This will
result in a sudden drop of water pressure in
the deluge valve top chamber which in turn will
open the deluge valve. Close the upstream side
stop valve immediately
(iii) Reset the valve as per the procedure given
under heading "RESETTING PROCEDURE FOR
THE DELUGE VALVE"
INSPECTION AND MAINTENANCE
Installed system piping network must be flushed
properly before placing the Deluge valve in service.
A qualified and trained person must commission the
system. After few initial successful tests, an
authorized person must be trained to perform
inspection and testing of the system. It is
recommended to have regular inspection and test
run of the system as per NFPA guideline or in
accordance to the organisation having local
jurisdiction.
(i) WARNING
Inspection and testing is to be carried out only
by authorised and trained personnel. DO NOT
TURN OFF the water supply or close any valve
to make repair(s) or test the valve, without
placing a roving fire patrol in the area covered
by the system. Also inform the local security
personnel and central alarm station, so that
there is no false alarm signal.
It is recommended to carry out physical
inspection of the system at least twice in a
week. The inspection should verify that all the
control valves are in proper position as per the
system requirement and that there are no
damages to any component.
The frequency of inspections must be increased
in the presence of contaminated water supplies,
corrosive/ scaling water supplies, and corrosive
atmospheres.
(ii) NORMAL CONDITION
(a) All main valves are open and are sealed
with tamper proof seal
(b) Drain valves must be kept closed
(c) No leak or drip is detected from the drip
valve
(d) All the gauges except the system side
water pressure gauge, should show the
required pressure
(e) There should be no leakage in the system
(iii) NORMAL CONDITION TEST
(a) The system should be checked for normal
condition at least once in a week
(b) Test the sprinkler alarm bell or electric
alarm by turning the alarm test valve to
the test position. The alarm should sound.
This test should be carried out at least
once in a week
