Setting
Procedure
Steps 1 through 12 are to be per-
formed when initially setting the Model
DV-2 Deluge Valve; after an opera-
tional test of the fire sprinkler system;
or, after system operation due to a fire.
Step 1. Close the Upper Chamber
Supply Control Valve (Fig. 2).
Step 2. Close the Main Control Valve.
If the system is equipped with Dry Pilot
Actuation, close the Air Supply Control
Valve (Fig. 5).
Step 3. OpentheMainDrainValve
(Fig. 2), Flow Test Valve (Fig. 2), and
all auxiliary drains in the system. Close
the Main Drain Valve and auxiliary
drain valves after water ceases to dis-
charge. Leave the Flow Test Valve
open.
Step 4. Depress the plunger of the
Automatic Drain Valve (Fig. 2) to verify
that it is open and that the Model DV-2
Deluge Valve is completely drained.
Step 5. Clean the Strainer (Fig. 2) in
the Upper Chamber Supply Connec-
tion by removing the clean-out plug
and strainer basket. The Strainer may
be flushed by momentarily opening the
Upper Chamber Supply Control Valve.
Step 6. Open the Alarm Control Valve
(Fig. 4) if it was closed to silence local
alarms.
It is recommended that the Alarm Con-
trol Valve be wire sealed in the open
position with a No. 16 twisted wire, the
ends of which are secured by a lead
seal. The wire seal should be looped
through the hole in the handle and
tightly twisted around the pipe nipple
adjacent to the handle.
Step 7. Reset the actuation system.
Manual Actuation — Reset the Manual
Control Station (Fig. 2); however, do
not close the hinged cover at this time.
Wet Pilot Actuation — Replace oper-
ated pilot sprinklers and/or reset the
manual control stations.
Dry Pilot Actuation — Replace oper-
ated pilot sprinklers and/or reset the
manual control stations. Re-establish
dry pilot pneumatic pressure.
Electric Actuation — Reset the electric
detection system in accordance with
the manufacturer’s instructions to de-
energize the solenoid valve.
NOTE
In order to prevent the possibility of a
subsequent operation of an over-
heated solder type sprinkler, any sol-
der type sprinklers that were possibly
exposed to a temperature greater than
their maximum rated ambient must be
replaced.
Step 8. Remove the Cover from the
Model DV-2 Deluge Valve, and then
remove the Center Valve Assembly.
Thoroughly clean and inspect the Cen-
ter Valve Assembly for wear or dam-
age, as well as all interior surfaces of
the Valve Body and Cover. Special
consideration should be given to the
condition of the Diaphragm and Fac-
ing. The Diaphragm and/or Facing
should be replaced if there are any
sign of deterioration due to age or
chemicals in the water. If the water
supply contains chemicals which tend
to attack an EPDM type rubber, then
the frequency of the Diaphragm and
facing inspection should be increased
to at least annually.
Worn or damaged parts must be re-
placed and the Model DV-2 Deluge
Valve must be reassembled in accord-
ance with Figure 1. The Cap Screws
securing the Cover should be uni-
formly tightened using a cross-draw
sequence.
Step 9. Open the Upper Chamber
Supply Control Valve (Fig. 2) and allow
time for full pressure to build up in the
Upper Chamber.
Step 10. Operate (open) the Manual
Control Station (Fig. 2) to vent trapped
air from the Upper Chamber. If neces-
sary, first open the hinged cover, and
then fully pull down on the operating
lever. SLOWLY close the operating
lever, by pushing it up after aerated
water ceases to discharge from the
Manual Control Station drain tubing.
Close the hinged cover and insert a
new break rod in the small hole
through the top of the enclosing box.
If wet pilot actuation is being used,
crack open the Inspector’s Test Con-
nection and any other vent valves, to
relieve trapped air. After the discharge
of air has stopped, close the vent
valves and the Inspector’s Test Con-
nection.
Step 11. Inspect drain connections
from the Manual Control Station, Sole-
noid Valve, Dry Pilot Actuator, and
Alarm Devices, as applicable. Any
leaks must be corrected before pro-
ceeding to the next step.
Step 12. Slowly open the Main Control
Valve. Close the Flow Test Valve (Fig.
2) as soon as water discharges from
the Flow Test Valve. Observe the Auto-
matic Drain Valve (Fig. 2) for leaks. If
there are leaks, determine/correct the
cause of the leakage problem. If there
are no leaks, the Model DV-2 Deluge
Valve is ready to be placed in service
and the Main Control Valve must then
be fully opened.
NOTE
After setting a fire protection system,
notify the proper authorities and ad-
vise those responsible for monitoring
proprietary and/or central station
alarms.
Care and
Maintenance
The following procedures and inspec-
tions must be performed as indicated,
in addition to any specific require-
ments of the NFPA, and any impair-
ment must be immediately corrected.
The owner is responsible for the in-
spection, testing, and maintenance of
their fire protection system and de-
vices in compliance with this docu-
ment, as well as with the applicable
standards of any authorities having ju-
risdiction. The installing contractor or
product manufacture should be con-
tacted relative to any questions.
It is also recommended that automatic
sprinkler systems be inspected,
tested, and maintained by a qualified
Inspection Service.
NOTES
Some of the procedures outlined in
this section will result in operation of
the associated alarms. Consequently,
notification must be given to the owner
and the fire department, central sta-
tion, or other signal station to which the
alarms are connected.
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system that
it controls, permission to shut down the
affected fire protection systems must
first be obtained from the proper
authorities and all personnel who may
be affected by this decision must be
notified.
Drop In Water Supply Pressure Be-
low Normal Range
NOTE
If the water supply pressure is signifi-
cantly reduced below the normally ex-
pected static pressure range (as could
occur in the case of a water main break
or repair), and there is a subsequent
drop in the upper chamber water pres-
sure below its normal range (due, for
example, to a leak in a piping connec-
tion to or from the upper chamber or, a
leak in the upper chamber check valve
caused by dirt or debris in the check
valve seal area), a deluge valve such
as the Model DV-2 could inadvertently
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