MARCH, 2022
HD 235
PAGE 9 OF 16
HD FIRE PROTECT
PVT. LTD.
SCHEMATIC FOR BASIC WET PILOT TRIM FOR DELUGE VALVE
MODEL - H3 FOR VERTICAL MOUNTING
SCHEMATIC FOR BASIC DRY PILOT TRIM FOR DELUGE VALVE
MODEL - H3 FOR VERTICAL MOUNTING
SCHEMATIC 5
SCHEMATIC 6
FLANGE X FLANGE
FLANGE X FLANGE
GROOVE X GROOVE
GROOVE X GROOVE
ABBREVIATION & SYMBOLS
DV
DELUGE VALVE
G
SPRINKLER ALARM (WMG)
NRV WITH RESTRICTION HEX NIPPLE
M
EMERGENCY RELEASE STATION
PG
PRESSURE GAUGE
VALVE
RN
RESTRICTIOIN NOZZLE (AIR LINE)
OD
OPEN DRAIN
STRAINER
SV
SOLENOID VALVE
DPA
DRY PILOT ACTUATOR
ANGLE VALVE
PS1
LOW AIR ALARM PRESSURE SWITCH
DR.V
DRIP VALVE
---
BY USER
PS2
WATER FLOW PRESSURE ALARM SWITCH
NRV
NON RETURN VALVE
**
OPTIONAL
PG
~
M
OD
INLE
T
PG
OUTL
ET
OD
DV
~
DR.V
OD
OD
~
OD
TO DETECTION LINE
PS2
**
SV
**
PG
~
M
OD
INLE
T
PG
OUTL
ET
OD
DV
~
DR.V
OD
OD
~
OD
TO DETECTION LINE
PS2
**
SV
**
~
M
OD
INLE
T
PG
OUTL
ET
OD
DV
SV
~
PG
DR.V
DPA
RN
LINE
TO DETECTION
OD
OD
OD
~
OD
AIR SUPPLY
PS1
**
PS2
**
PG
NRV
**
~
M
OD
INLE
T
PG
OUTL
ET
OD
DV
~
PG
DR.V
DPA
RN
LINE
TO DETECTION
OD
OD
OD
~
OD
AIR SUPPLY
PG
NRV
SV
**
PS2
**
PS1
**
ETW-D
ETD-D