MARCH, 2022
HD 235
PAGE 14 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 15
SCHEMATIC 16
FLANGE X FLANGE
FLANGE X FLANGE
GROOVE X GROOVE
GROOVE X GROOVE
OD
~
OD
DR.V
PG
~
OD
PG
OD
M
OD
~
~
INLET
OUTLET
DV
TO DETECTION
LINE
G
~
OD
NRV
PS2
**
SV
**
OD
~
OD
DR.V
PG
~
OD
PG
OD
M
OD
~
~
INLET
OUTLET
DV
TO DETECTION
LINE
G
~
OD
NRV
PS2
**
SV
**
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
OD
~
OD
DR.V
PG
~
OD
TO DETECTION
PG
LINE
PG
OD
RN
DPA
M
OD
PS1
**
SV
**
~
OD
~
INLET
OUTLET
DV
G
~
OD
AIR SUPPLY
NRV
PS2
**
NRV
OD
~
OD
DR.V
PG
~
OD
TO DETECTION
PG
LINE
PG
OD
RN
DPA
M
OD
PS1
**
SV
**
~
OD
~
INLET
OUTLET
DV
G
~
OD
AIR SUPPLY
NRV
PS2
**
NRV
NT-W
NT-D