TFP1410
Page 11 of 14
Installation
General Instructions
1-1/2 inch (DN40) risers utilize a 2 inch
(DN50) Riser Check Valve in combina-
tion with the 1-1/2 inch (DN40) DV-5
Deluge Valve.
Proper operation of the DV-5 Deluge
Valves depends upon their trim being
installed in accordance with the in-
structions given in this technical data
sheet. Failure to follow the appropri-
ate trim diagram may prevent the DV-5
Valve from functioning properly, as well
as void listings, approvals, and the
manufacturer’s warranties.
The DV-5 Valve must be installed in a
readily visible and accessible location.
The DV-5 Valve, associated trim, and
wet pilot lines must be maintained at
a minimum temperature of 40°F (4°C).
Heat tracing of the DV-5 Valve or its
associated trim is not permitted. Heat
tracing can result in the formation of
hardened mineral deposits that are ca-
pable of preventing proper operation.
The DV-5 Deluge Valve is to be in-
stalled in accordance with the follow-
ing criteria:
Step 1. All nipples, ttings, and de-
vices must be clean and free of scale
and burrs before installation. Use pipe
thread sealant sparingly on male pipe
threads only.
Step 2. The DV-5 Valve must be
trimmed in accordance with Figure 3A
or 3B.
Step 3. Care must be taken to ensure
that check valves, strainers, globe
valves, etc. are installed with the ow
arrows in the proper direction.
Step 4. Drain tubing to the Drip Funnel
must be installed with smooth bends
that will not restrict ow.
Step 5. The main drain and Drip Funnel
drain may be interconnected provided
a check valve is located at least 12
inches (300 mm) below the Drip Funnel.
Step 6. Suitable provision must be
made for disposal of drain water. Drain-
age water must be directed such that
it will not cause accidental damage to
property or danger to persons.
Step 7. Connect the Diaphragm Cham
-
ber Supply Control Valve to the inlet
side of the system’s Main Control Valve
in order to facilitate setting of the DV-5
Valve (Ref. Figure 4).
Step 8. An Inspector’s Test Connec-
tion, as described in the Technical Data
section, must be provided for Wet Pilot
Actuation systems.
Step 9. Unused pressure alarm switch
connections must be plugged.
Step 10. A suitable automatic supervi-
sory air (nitrogen) supply, as described
in the Technical Data section, is to be
installed in accordance with the appli-
cable technical data sheet and set for
10 ± 2 psi (0,69 ± 0,14 bar).
Step 11. A desiccant dryer, when re-
quired for the supervisory air supply, is
to be installed between a drip leg and
the Model AMD-1 Air Maintenance De-
vice or between the Model G16AC812
Automatic Supervisory Air Supply and
the Preaction Trim.
Step 12. The Supervisory Low Pres-
sure Alarm Switch is to be wired to the
supervisory alarm initiating circuit of an
alarm panel.
Step 13. Conduit and electrical con-
nections are to be made in accordance
with the requirements of the authority
having jurisdiction and/or the National
Electric Code.
Step 14. Before a system hydrostatic
test is performed in accordance with
NFPA 13 system acceptance test re-
quirements, the DV-5 Diaphragm
Chamber is to be depressurized; the
Automatic Drain Valve (Item 4, Fig. 3A)
is to be temporarily replaced with a 1/2
inch NPT plug, the 3/32 inch Vent Fit-
ting (Item 16 - Fig. 3A) is to be tem-
porarily replaced with a 1/4 inch NPT
plug, and the Diaphragm Cover Bolts
must be uniformly and securely tight-
ened using a cross-draw sequence. Af-
ter tightening, double- check to make
certain that all of the Diaphragm Cover
Bolts are securely tightened.
Valve Setting
Procedure
Steps 1 through 12 are to be performed
when initially setting the DV-5 Deluge
Valve after an operational test of the
re protection system, or after system
operation due to a re.
Step 1. Close the Main Control Valve.
Step 2. Close the Diaphragm Chamber
Supply Control Valve, and close the Air
Supply Control Valve (Ref. Fig. 3B).
Step 3. Open the Main Drain Valve,
System Drain Valve, and all auxiliary
drains in the system. Close the System
Drain Valve and auxiliary drain valves
after water ceases to discharge. Leave
the Main Drain Valve open.
Step 4. Depress the plunger of the Au-
tomatic Drain Valve to verify that it is
open and that the DV-5 Valve is com-
pletely drained.
Step 5. Clean the Strainer in the Dia-
phragm Chamber Supply connection
by removing the clean-out plug and
strainer basket. The Strainer may be
ushed out by momentarily opening
the Diaphragm Chamber Supply Con-
trol Valve.
Step 6. Reset the actuation system.
Manual Actuation — Push the op-
erating lever up; however, do not
close the hinged cover at this time.
Wet Pilot Actuation — Replace op-
erated pilot sprinklers and/or reset
the manual control stations.
NOTE: In order to prevent the possi-
bility of a subsequent operation of an
over-heated solder type pilot sprinkler,
any solder type pilot sprinklers that
were possibly exposed to a tempera-
ture greater than their maximum rated
ambient must be replaced.
Step 7. Open the Diaphragm Chamber
Supply Control Valve and allow time
for full pressure to build up in the Dia-
phragm Chamber.
Step 8. Operate (open) the Manu-
al Control Station to vent trapped air
from the Diaphragm Chamber. If nec-
essary, rst 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.
Crack open the Inspector’s Test Con-
nection and any other vent valves on
the wet pilot line to relieve trapped air.
After the discharge of air has stopped,
close the vent valves and the Inspec-
tor’s Test Connection
Step 9. Inspect the drain connections
from the Manual Control Station. Any
leaks must be corrected before pro-
ceeding to the next step.
Step 10. Verify the ability for the DV-5
Diaphragm to hold pressure as follows:
• With the diaphragm chamber pres-
surized per Step 8, temporarily
close the Diaphragm Chamber Sup-
ply Control Valve, and then monitor
the Diaphragm Chamber Pressure
Gauge for a drop in pressure.
• If a drop in pressure is noted, the
DV-5 Diaphragm is to be replaced
and/or any leaks must be corrected
before proceeding to the next step.
• If the Diaphragm Chamber Pres-
sure Gauge indicates no drop in
pressure, re-open the Diaphragm
Chamber Supply Control Valve and
proceed to the next step.
Step 11. Replace operated automatic
sprinklers on the system piping and
then open the Supervisory Air Supply
Control Valve and allow the system to
automatically re-establish its nominal
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