Johnson Controls tyco DV-5A Series Manual

DV-5 Automatic Water Control Valve
a
Single Interlock Preaction Fire Protection Systems
1-1/2 Inch to 8 Inch (DN40 to DN200)
General
Description
The TYCO DV-5 Automatic Water
a
Control Valves are diaphragm type
valves 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 Valves are offered with the
a
DV-5 Valve and separately ordered
a
semi-assembled trim shown in Figures
7, 8, and 9, or, for ease of installa-
tion, with the DV-5 Valve completely
a
trimmed with or without a System Main
Control Valve.
The DV-5 Single Interlock Preaction
a
System utilizes automatic sprinklers
and a supplemental detection system.
The supplemental detection system is
comprised of wet pilot lines, dry pilot
lines, or electric detection comprised
of heat detectors, smoke detectors,
manual pull stations, etc. Actuation
of the detection system automatically
operates (releases) the DV-5
allowing water to flow into the sprinkler
piping system and to be discharged
from any sprinklers that may subse-
quently open.
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Page 1 of 34
Valve also
in cor-
a
End Connection
Inlet
Thread
Groove
Flange
Flange
Typically, the system designer selects
the detection components for a single
interlock preaction system that will
respond to a fire sooner than the auto-
Valve,
a
matic sprinklers. Consequently, the
system will experience a minimal delay
in water delivery over that for a wet pipe
sprinkler system because the system
will have essentially filled with water
before a sprinkler operates. The DV-5
Valve with Single Interlock Preac-
tion Trim automatically supervises the
integrity of the overall system. Super-
vision is provided by monitoring a rel-
atively low air pressure in the system
via a low pressure alarm switch so as
MARCH 2020
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
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)
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
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-
8
(200)
N/A
327
(148,3)
346
(157,0)
365
(165,6)
TFP1425