Technical Data - Tyco DV-5A Manual

TFP1421
Page 4 of 18
DIMENSIONS SHOWN
ARE APPLICABLE TO
ALL END CONNECTION
CONFIGURATIONS
AVAILABLE PER
VALVE SIZE
10-3/16"
(260 mm)
1-1/2 Inch (DN40)
10-3/16"
(260 mm)
2 Inch (DN50)
13-3/4"
(349 mm)
3 Inch (DN80)
16-3/4"
(425 mm)
4 Inch (DN100)
22-3/8"
(569 mm)
6 Inch (DN150)
27-7/16"
(697 mm)
8 Inch (DN200)
FIGURE 3
DV-5 VALVE
a
TAKE-OUT DIMENSIONS
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
sprinkler system because the system
will have essentially filled with water
before a sprinkler operates. The DV-5
Single Interlock Preaction Electric
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
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.
NOTICE
The DV-5 Single Interlock Preaction
a
Electric Actuation Valve described
herein must be installed and main-
tained in compliance with this docu-
ment, as well as with the applicable
standards of the NATIONAL FIRE PRO-
TECTION ASSOCIATION (NFPA), in
addition to the standards of any other
authorities having jurisdiction. Failure
to do so may impair the performance
of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Technical
Data
Approvals
UL and C-UL Listed
FM Approved
Listing and Approvals are based on
DV-5a Single Interlock Preaction Elec-
a
tric Actuation Valve being trimmed as
described in Figure 5.
DV-5 Valve
A
Components for the 1 1/2 in. to 8 in.
(DN40 to DN200) DV-5
shown in Figure 1. The DV-5
is for vertical installations. It is rated
for use at service pressures of 20 to
300 psi (1,4 to 20,7 bar).
The take-out dimensions are shown
in Figure 3, and flanged connec-
tions are available drilled per ANSI,
ISO, AS, and JIS specifications
(see Table A). Threaded inlet and outlet
connections are available in NPT or ISO
7-1. Threaded port connections are
NPT threaded.
Note: PN16 flanges are pressure rated
to 16 bar.
Valve Trim
The maximum pressure rating for the
Single Interlock Preaction Electric
Actuation is dependent on the sepa-
rately ordered solenoid valve per Tech-
nical Data Sheet TFP2180.
When the system pressure is greater
than 175 psi (12,1 bar), provision is
to be made to replace the standard
order 300 psi (20,7 bar) Water Pres-
sure Gauges with separately ordered
600 psi (41,4 bar) Water Pressure
Gauges.
If the addition of an Alarm Control Valve
is desired or required by the local AHJ,
the Alarm Control Valve noted as Item
H in Figure 8 is to be a separately
ordered electronically supervised nor-
mally open valve.
External trim connections are NPT
threaded. EMEA trim is provided with
NPT x ISO 7-1 thread adapters.
Pressure Loss
See Graph A
Detection System
See the Electric Actuation subsection
System Air Pressure Requirements
The supervisory air (nitrogen) pressure
is to be 10 ± 2 psi (0,69 ±0,07 bar). The
use of a higher supervisory pressure
is subject to approval by the author-
ity having jurisdiction, and it should
be understood that the use of a higher
supervisory pressure may increase
water delivery time. The use of a lower
Valve are
a
Valve
a