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TFP1355
Installation
NOTES
Proper operation of the Model DV-3HP
Deluge Valve depends upon its trim
being installed in accordance with the
instructions given in this Technical
Data Sheet. Failure to follow the ap-
propriate trim diagram may prevent
the DV-3HP Valve from functioning
properly, as well as void listings, ap-
provals, and the manufacturer's war-
ranties.
The DV-3HP Valve must be installed
in a readily visible and accessible lo-
cation.
The DV-3HP Valve, associated trim,
and wet pilot lines must be maintained
at
a
minimum
temperature
40°F/4°C.
Heat tracing of the DV-3HP Valve or its
associated trim is not permitted. Heat
tracing can result in the formation of
hardened mineral deposits which are
capable of preventing proper opera-
tion.
The Model DV-3HP Deluge Valve is to
be installed in accordance with the fol-
lowing criteria:
Step 1. All nipples, fittings, and de-
vices must be clean and free of scale
and burrs before installation. Use pipe
thread sealant sparingly on male pipe
threads only.
NOTE
It is recommended that internally gal-
vanized pipe and cast iron fittings be
used for wet or dry pilot lines.
Step 2. The DV-3HP Valve must be
trimmed in accordance with Figures 3
and 12.
Step 3. Care must be taken to ensure
that check valves, strainers, globe
valves, etc. are installed with the flow
arrows in the proper direction.
Step 4. Drain tubing to the drip funnel
must be installed with smooth bends
that will not restrict flow.
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.
Drainage water must be directed such
that it will not cause accidental dam-
age to property or danger to persons.
Step 7. Connect the Diaphragm
Chamber Supply Control Valve to the
inlet side of the system's main control
valve in order to facilitate setting of the
DV-3 Valve (Ref. Figures 4, 7, and 10).
Step 8. An Inspector's Test Connec-
tion, as described in the Wet Pilot Ac-
tuation or Dry Pilot Actuation sections,
must be provided for Wet or Dry Pilot
Actuation systems.
Step 9. An Air Maintenance Device, as
described in the Dry Pilot Actuation
section, must be provided for Dry Pilot
Actuation.
Step 10. A desiccant dryer, when
specified for Dry Pilot Actuation, is to
be installed between a drip leg and the
Air Maintenance Device.
Step 11. The Low Pressure Alarm
Switch for Dry Pilot Actuation is to be
adjusted as follows:
• Low pressure alarm setting at ap-
proximately 6 psi (0,4 bar) below the
of
minimum pilot line service pressure
requirement shown in Graph C.
• Fire alarm setting at approximately
15 psi (1,0 bar) below the minimum
pilot line service pressure require-
ment shown in Graph C.
Step 12. Unused pressure alarm
switch connections must be plugged.
Step 13. The Pressure Relief Valve
provided with the Dry Pilot Actuation
Trim is factory set to relieve at a pres-
sure of approximately 45 psi (3,1 bar),
which can typically be used for a maxi-
mum normal dry pilot actuation system
pressure of 40 psi (2,8 bar). The Pres-
sure Relief Valve may be reset; how-
ever, it must be be reset to relieve at a
pressure that is in accordance with the
requirements of the authority having
jurisdiction.
To reset the Pressure Relief Valve, first
loosen the jam nut and then adjust the
cap accordingly — clockwise for a
higher pressure setting or counter-
clockwise for a lower pressure setting.
After verifying the desired pressure
setting, tighten the jam nut.
Step 14. 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 15. Before a system hydrostatic
test is performed in accordance with
NFPA 13 system acceptance test re-
quirements, the Automatic Drain Valve
(Item 6, Fig. 3, 6, or 9) is to be tempo-
rarily replaced with a 1/2 inch NPT
plug, the 3/32 inch Vent Fitting (16 -
Fig. 3, 6, or 9) is to be temporarily
replaced with a 1/4 inch NPT plug, and
the Handhole Cover Bolts are to be
tightened using a cross-draw se-
quence.
Page 17 of 20
Valve Setting
Procedure
Steps 1 through 10 are to be per-
formed when initially setting the Model
DV-3HP Deluge Valve; after an opera-
tional test of the fire protection system;
or, after system operation due to a fire.
Step 1. Close the Diaphragm Cham-
ber Supply Control Valve.
Step 2. Close the Main Control Valve,
and if the system is equipped with Dry
Pilot Actuation, close the Air Supply
Control Valve (Ref. Fig. 12).
Step 3. Open the Main Drain Valve and
all auxiliary drains in the system. Close
the auxiliary drain valves after water
ceases to discharge. Leave the Main
Drain Valve open.
Step 4. Depress the plunger of the
Automatic Drain Valve to verify that it
is open and that the DV-3HP Valve is
completely drained.
Step 6. Clean the Strainer in the Dia-
phragm Chamber Supply connection
by removing the clean-out plug and
strainer basket. The Strainer may be
flushed out by momentarily opening
the Diaphragm Chamber Supply Con-
trol Valve.
Step 7. Reset the actuation system.
Manual Actuation — Push the operat-
ing lever up; 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 pilot sprinkler, any
solder type pilot sprinklers that were
possibly exposed to a temperature
greater than their maximum rated am-
bient must be replaced.
Step 8. Open the Diaphragm Chamber
Supply Control Valve and allow time for
full pressure to build up in the Dia-
phragm Chamber.
Step 9. Operate (open) the Manual
Control Station to vent trapped air from
the Diaphragm Chamber. If necessary,
first open the hinged cover, and then
fully pull down on the operating lever.
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