Johnson Controls tyco DV-5A Manual

DV-5 Automatic Water Control Valve, Single
a
Interlock Preaction, Wet Pilot Actuation, Fire
Protection System 1 1/2 to 8 Inch (DN40 to DN200)
General
Description
The TYCO DV-5 Automatic Water
a
Control Valve Single Interlock Preaction
Wet Pilot Actuation is a diaphragm type
valve that can be used in single inter-
lock preaction fire protection systems.
When properly trimmed, the double
seat design of the DV-5
a
provides actuation of fire alarms upon
system operation.
The diaphragm style design of the
DV-5 Valve allows external resetting,
a
providing for easy resetting of a deluge
system without having to open a valve
handhole cover to manually reposition
a clapper and/or latch mechanism.
Simply re-pressurizing the diaphragm
chamber resets the valve.
The DV-5 features internal and exter-
a
nal coating of the valve to provide
corrosion resistance. The external cor-
rosion resistance of the epoxy coating
permits the use of the DV-5
rosive atmospheres associated with
many types of industrial processing
plants and outdoor installations.
The DV-5 Single Interlock Preaction
a
Wet Pilot Actuation Valve is offered
with or without a System Main Control
Valve.
The DV-5 Single Interlock Preaction
a
Wet Pilot Actuation Valve utilizes auto-
matic sprinklers and a supplemental
detection system, comprised of wet
pilot lines. Actuation of the detec-
tion system automatically operates
(releases) the DV-5 Valve, allowing
a
water to flow into the sprinkler piping
system and to be discharged from any
sprinklers that may subsequently open.
Typically, the system designer selects
the detection components for a single
interlock preaction system that will
respond to a fire sooner than the auto-
matic sprinklers. Consequently, the
system will experience a minimal delay
in water delivery over that for a wet pipe
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Page 1 of 18
Valve also
in cor-
a
End Connection
Inlet
Thread
Groove
Flange
Flange
sprinkler system because the system
will have essentially filled with water
before a sprinkler operates. The DV-5
Single Interlock Preaction Wet Pilot
Actuation Valve automatically super-
vises the integrity of the overall system.
Supervision is provided by monitoring a
relatively low air pressure in the system
via a low pressure alarm switch so as
to detect leaks in the system that oth-
erwise would result in unwanted water
discharge should the system operate in
a fire condition.
Supervised single interlock preac-
tion systems are generally used to
protect areas where there is danger
Available End Connections and Weights — lb (kg)
1 1/2 2
Outlet
(40) (50)
26 25
Thread
(11,8) (11,3)
25 25
Groove
(11,3) (11,3)
Groove N/A N/A
Flange N/A N/A
a
MAY 2020
Worldwide
www.tyco-fire.com
Contacts
Nominal Valve Size
ANSI Inches
(DN)
3 4 6
(80) (100) (150)
N/A N/A N/A
60 95 177
(27,2) (43,1) (80,3)
66 106 190
(30,0) (48,1) (86,2)
72 116 204
(32,7) (52,6) (92,5)
of serious water damage that might
result from damaged automatic sprin-
klers or piping. Typically, such areas
include computer rooms, storage
areas for valuable artifacts, libraries,
and archives.
Single interlock preaction systems are
also effectively used to protect proper-
ties where a pre-alarm of a possible fire
condition may allow time for fire extin-
guishment by alternate suppression
means, prior to a sprinkler discharge.
In the event the fire cannot otherwise
be extinguished, the preaction sprinkler
system will then perform as the primary
fire protection system.
8
(200)
N/A
327
(148,3)
346
(157,0)
365
(165,6)
TFP1411