TFP1450
Page 4 of 28
In the case of Electric/Pneumatic Acti-
vation, a solenoid valve and a dry pilot
actuator connected in series is used to
hold the DV-5a Valve closed by locking
pressure in the diaphragm chamber
of the DV-5a Valve. In the event of a
fire, a releasing panel is initiated by a
fire detection or electric manual pull
station, to allow the solenoid valve to
open, and subsequently loss of system
air pressure due to opening of an auto-
matic sprinkler will result in opening of
the dry pilot actuator. Opening of both
the solenoid valve and dry pilot actu-
ator results in operation of the DV-5a
Valve.
The selection of Electric/Electric versus
Electric/Pneumatic is related to desired
system air pressure and system
volume that affects water delivery time
restraints.
NOTICE
The DV-5a Valves described herein
must be installed and maintained in
compliance with this document, as
well as with the applicable standards
of the NATIONAL FIRE PROTECTION
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/C-UL Listed
FM Approved
Listings and Approvals are based on
DV-5a being trimmed as described in
this technical data sheet.
DV-5A Valve
Components for the 1-1/2 thru 8 Inch
(DN40 thru DN200) DV-5a Valves are
shown in Figure 1. The DV-5a Valves
are for vertical installations. They are
rated for use at a service pressures of
20 to 300 psi (1,4 to 20,7 bar).
The take-out dimensions are shown
in Figure 3, and flanged connections
are available drilled per ANSI, ISO,
AS, and JIS specifications (Ref. Table
A). Threaded inlet and outlet connec-
tions 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 is as
follows:
•
Electric/Electric Double Interlock
Preaction Trim is dependent on
separately ordered solenoid valve
per Technical Data Sheet TFP2180.
•
Electric/Electric Double Interlock
Preaction Trim when using the
separately ordered QRS Elec-
tronic Accelerator is based on the
separately ordered QRS electronic
Accelerator per Technical Data
She e t TFP110 0
•
Electric Pneumatic Double Interlock
Preaction Trim is the lesser of
250 psi (17,2 bar) or the sepa-
rately ordered solenoid valve per
Technical 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 Pressure 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 Figures 12 and 13 is to be a sepa-
rately ordered electronically supervised
normally open valve.
External trim connections are NPT
threaded. EMEA trim is provided with
NPT x ISO 7/1 thread adapters.
Pressure Loss
Refer to Graph A
Actuation Options
Refer to subsections for Electric/Elec-
tric Actuation or Electric/Pneumatic
Actuation.
Materials of
Construction
Valve Body
Epoxy coated ductile iron per ASTM
A536-77, Grade 65-45-12
Diaphragm Cover
Epoxy coated ductile iron per ASTM
A536-77, Grade 65-45-12
Diaphragm
Polyester fabric reinforced, TEFLON
coated, EPDM rubber per ASTM D2000
Diaphragm Cover Fasteners
Aluminum zinc coated steel
Common Hardware Trim
•
Common hardware pipe ttings are
galvanized or black as required and
are malleable per ASME B16.3.
•
Common hardware pipe nipples are
galvanized or black as required and
are Schedule 40 per ASTM A53 or
A135.
8 Inch (DN200)
6 Inch (DN150)
4 Inch (DN100)
3 Inch (DN80)
2 Inch (DN50)
1-1/2 Inch (DN40)
22-3/8"
(569 mm)
16-3/4"
(425 mm)
13-3/4"
(349 mm)
10-3/16"
(260 mm)
10-3/16"
(260 mm)
27-7/16"
(697 mm)
ARE APPLICABLE TO
ALL END CONNECTION
CONFIGURATIONS
AVAILABLE PER
VALVE SIZE
FIGURE 3
DV-5a DELUGE VALVE
TAKE-OUT DIMENSIONS
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