Model DV-5 Deluge Valve - Wet Pilot Actuation: Next Return
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NethajiModel DV-5 Deluge Valve - Wet Pilot Actuation: Next Return
Uploaded by
NethajiSTEP 1: The system is shown
ready for operation.
Open Sprinklers System Drain Valve (Normally Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1
Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Return Next
STEP 2: Fire activates the wet pilot
sprinklers, water from the
Diaphragm Chamber is released.
Open Sprinklers System Drain Valve (Normally Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 3: Water is released from the
Diaphragm Chamber faster than it
can be replaced by the 1/8"
Open Sprinklers System Drain Valve (Normally Closed) restriction in the Automatic
or Nozzles
Shut-Off Valve
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Drain Drain
Waterflow Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 4: Rapid pressure drop in the
Diaphragm Chamber alows
the Diaphragm to open, allowing
Open Sprinklers System Drain Valve (Normally Closed) water to enter the system.
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 5: Water flows into the Alarm
trim and activates the Waterflow
Pressure Alarm Switch to trigger
Open Sprinklers System Drain Valve (Normally Closed) the fire alarm. The automatic drain
or Nozzles
valve is closed
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 6: Water passes through the
trim to the Automatic shut-off valve
to prevent the Diaphragm Chamber
Open Sprinklers System Drain Valve (Normally Closed) from becoming "Re-Pressurized"
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 7: Water will spray out
the main sprinkler system
through the sprinklers or
Open Sprinklers System Drain Valve (Normally Closed) nozzles.
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Normally Open) (Normally Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection No Audio
Air - Open to Atmosphere
Previous Return Next
STEP 8: After fire is under control,
valve is manually closed to
cut off the water supply. The
Open Sprinklers System Drain Valve (Normally Closed) Diaphragm Chamber Supply Valve
or Nozzles
is also closed
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Normally Shutoff Valve
Closed) Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Closed)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 9: Then, the main drain and
all system drains are opened to
drain the system
Open Sprinklers System Drain Valve (Open)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Open) Shutoff Valve
Main Drain Valve ASV-1 Drain
(Open)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Closed)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
Note: Depress the Plunger of the Automatic Drain Valve to verify STEP 10: After water ceases
that it is open and that the DV-5 Valve is completely drained to discharge, close the auxiliary
drains. Keep the Main Drain Open
Open Sprinklers System Drain Valve (Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Drain
Diaphragm
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Open) Shutoff Valve
Main Drain Valve ASV-1 Drain
(Open)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Closed)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 11: Reset the Wet Pilot
Actuation system, by replacing
any operated pilot sprinklers.
Open Sprinklers System Drain Valve (Normally Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Open) Shutoff Valve
Main Drain Valve ASV-1
Drain
(Open)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Closed)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Note: Clean the Y-Strainer
Supply Water under pressure
Diaphragm Chamber in the Diaphragm Chamber
Supply Connection Supply connection trim
Air - Open to Atmosphere
Previous Return Next
STEP 12: Open the Diaphragm
Chamber Supply Valve so the
Diaphragm Chamber can begin to
Open Sprinklers System Drain Valve (Normally Closed) return to full pressure.
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Open) Shutoff Valve
Main Drain Valve ASV-1
Drain
(Open)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 13: The Diaphragm Chamber
will completely close once the
Chamber returns to full pressure.
Open Sprinklers System Drain Valve (Normally Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Closed) Shutoff Valve
Main Drain Valve ASV-1 Drain
(Open)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Closed) (Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection No Audio
Air - Open to Atmosphere
Previous Return Next
STEP 14: Finally, Slowly open the
Main Supply Valve and close the
Main Drain once water begins to
Open Sprinklers System Drain Valve (Normally Closed) discharge from the drain.
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Closed) Shutoff Valve
Main Drain Valve ASV-1
Drain
(Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Open) (Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection
Air - Open to Atmosphere
Previous Return Next
STEP 15: The system is then
ready to return to service.
Open Sprinklers System Drain Valve (Normally Closed)
or Nozzles
Automatic
Wet Pilot
Drain Valve Sprinkler
AD-1 Detection Inspector's
System Test
Connection
Valve
Waterflow Drain Diaphragm Drain
Pressure Water Motor Chamber
Alarm Switch Alarm Port Pressure Gauge
Swing
Check Valve Manual
Diaphragm Control
Alarm Station
Chamber Automatic
Test Valve MC-1
(Closed) Shutoff Valve
Main Drain Valve ASV-1 Drain
(Normally Closed)
Spring Loaded
Check Valve
Water Supply Y-Strainer
Pressure Gage
Main Diaphragm Chamber
Control Valve Supply Control Valve
(Open) (Open)
Model DV-5 Deluge Valve - Wet Pilot Actuation
Supply Water under pressure
Diaphragm Chamber
Supply Connection No Audio
Air - Open to Atmosphere
Previous Return