MARCH, 2022
HD 235
PAGE 13 OF 16
HD FIRE PROTECT
PVT. LTD.
SCHEMATIC FOR BASIC WET PILOT TRIM FOR DELUGE VALVE
MODEL - H3 FOR HORIZONTAL MOUNTING
SCHEMATIC FOR BASIC DRY PILOT TRIM FOR DELUGE VALVE
MODEL - H3 FOR HORIZONTAL MOUNTING
SCHEMATIC 14
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
INLET
PG
OUTLET
PG
OD
M
OD
DV
~
~
OD
~
OD
DR.V
~
OD
TO DETECTION
LINE
SV
**
PS2
**
INLET
PG
OUTLET
PG
OD
M
OD
DV
~
~
OD
~
OD
DR.V
~
OD
TO DETECTION
LINE
SV
**
PS2
**
INLET
PG
OUTLET
TO DETECTION
PG
LINE
PG
OD
RN
DPA
M
OD
DV
~
OD
~
OD
~
OD
DR.V
~
OD
AIR SUPPLY
NRV
PS1
**
SV
**
PS2
**
INLET
PG
OUTLET
TO DETECTION
PG
LINE
PG
OD
RN
DPA
M
OD
DV
~
OD
~
OD
~
OD
DR.V
~
OD
AIR SUPPLY
NRV
PS1
**
SV
**
PS2
**
SCHEMATIC 11
ETW-D
ETD-D