TFP1316
Page 4 of 18
Technical
Data
Approvals
UL and C-UL Listed
FM Approved
VdS Approved*
LPCB Approved*
Listings and Approvals are based on
DV-5
a
Deluge Dry Pilot Actuation Valve
being trimmed as described in Figure 5.
For local EMEA regional approvals,
consult with your local distributor.
* VdS and LPCB approval is additionally based on install-
ing the VdS and LPCB required water column prevention
drain components provided with assemblies in the Or-
dering Procedure section.
DV-5
A
Valve
Components for the 1 1/2 in. to 8 in.
(DN40 to DN200) DV-5
a
Valves are
shown in Figure 1. The DV-5
a
Valves
are for vertical installations. They are
rated for use at a service pressures of
20 psi to 300 psi (1,4 bar to 20,7 bar).
The take-out dimensions are shown
in Figure 3, and the flanged connec-
tions are available drilled per ANSI, ISO,
AS, and JIS specifications (See Table
A). Threaded inlet and port 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 for the
DV-5
a
Deluge
Dry Pilot Actuation
Valve
is 250 psi (17,2 bar).
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 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 Dry Pilot Actuation subsection.
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 fittings 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.
• Common hardware compression
fittings are brass per ASTM B16.
• Common hardware tubing is Type L
copper per ASTM B88.
Operation
The TYCO DV-5
a
Valve is a diaphragm
style valve that depends upon water
pressure in the Diaphragm Chamber
(See Figure 2A) to hold the Diaphragm
closed against the water supply
pressure.
When the DV-5
a
Valve is set for service,
the Diaphragm Chamber is pressurized
through the trim connections from the
inlet side of the system’s main control
valve.
Opening the Dry Pilot Actuation trips
the Model MRA-1 Manual Reset Actua-
tor. Tripping the MRA-1 releases water
from the DV-5
a
Diaphragm Chamber
faster than it can be replenished
through a 1/8 in. (3,2 mm) restriction
located in the diaphragm chamber
supply connection. Release of water
through the MRA-1 results in a rapid
pressure loss in the DV-5
a
Diaphragm
Chamber
.
The force differential applied
through the Diaphragm to hold the
Diaphragm in the set position is then
reduced below the valve trip point. The
water supply pressure then forces the
Diaphragm open permitting water to
flow into the system piping, as well as
through the Alarm Port to actuate the
system alarms (See Figure 2B).
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)
DIMENSIONS SHOWN
ARE APPLICABLE TO
ALL END CONNECTION
CONFIGURATIONS
AVAILABLE PER
VALVE SIZE
FIGURE 3
DV-5
a
VALVE
TAKE-OUT DIMENSIONS
