Tyco DN40 - Materials of Construction; Operating Principles

TFP1335
Page 3 of 26
Materials of
Construction
Body
RILSAN polyamide 11 coated ductile
iron per ASTM A536-77, Grade
65-45-12
Handhole Cover
RILSAN polyamide 11 coated ductile
iron per ASTM A536-77, Grade
65-45-12
Diaphragm
Nylon fabric reinforced, natural rubber
per ASTM D2000
Diaphragm Cover Fasteners
Galvanized carbon steel
Trim Components
Refer to Bills of Material in Figures 7
through 18
Operating
Principles
The DV-5 Deluge Valve is a diaphragm
style valve that depends upon water
pressure in the Diaphragm Chamber
(Ref. Figure 3A) to hold the Diaphragm
closed against the water supply
pressure.
When the DV-5 Valve is set for service,
the Diaphragm Chamber is pressurized
through the trim connections from the
inlet side of the system’s stop valve.
Opening an actuation device, for
example the solenoid valve in the
Electric Actuation Trim (Ref. Figure 6),
releases water from the Diaphragm
Chamber faster than it can be replen-
ished through the 3,2 mm restriction
within the Automatic Shut-Off Valve
provided in the diaphragm chamber
supply connection. Release of water
pressure results in a rapid pressure
drop in the Diaphragm Chamber and
the force differential applied through
the Diaphragm to hold the Diaphragm
in the set position is reduced below the
valve trip point. The water supply pres-
sure 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 (Ref.
Figure 3B).
DN40
DN50
DN80
DN100
DN150
DN200
Groove x Groove & Thread x Thread
Groove x Groove & Thread x Thread
Groove x Groove, Flange x Flange,
& Flange x Groove
Groove x Groove, Flange x Flange,
& Flange x Groove
Groove x Groove, Flange x Flange,
& Flange x Groove
460 mm
400 mm
324 mm
220 mm
204 mm
570 mm
Groove x Groove, Flange x Flange,
& Flange x Groove
DN150
DN40
DN80
DN50
DN100
DN200
0,08
0,03
0,04
0,06
0,10
0,20
0,30
0,40
0,60
0,02
2000 4000 1000060001000600400200
FLOW RATE IN LITERS PER MINUTE (LPM)
15000
NOMINAL PRESSURE DROP IN BAR
FIGURE 2
DV-5 DELUGE VALVE
TAKE-OUT DIMENSIONS
GRAPH A
DV-5 DELUGE VALVE
NOMINAL PRESSURE LOSS VERSES FLOW