OCTOBER, 2014 HD 235PAGE 3 OF 16
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
