®
1
SF-300
MAY 15, 2019
SureFire II
TM
Natural Draught
Gas Pilot
t
ype
SP-32-
NG/PG-
ND
Instruction Manual
1. INTRODUCTION
This Instruction Manual contains a description of the type
SureFire II™
SP-32
-
NG/PG-
ND
gas pilot construction,
operation principle and the instructions for installation, start-up and service, including the industrial health & safety
recommendations.
The
SP-32
-NG/PG-ND
(
32
mm outer diameter,
NG
- Natural Gas or
PG
- Propane Gas or LPG,
ND
- Natural
Draught) gas pilot
is a reliable and effective source of ignition for oil and gas burners.
Pilot Part Number for Natural Gas is “
SP-32-NG-ND-xxx
”, for Propane Gas or LPG gas is “
SP-32-PG-ND-xxx
”
where “-xxx” is the insertion length “L” from 0.5 to 2.0 metres.
(see Appendix 1 – the pilot capacity vs. gas pressure
graphs for Natural gas and Propane). For other Fuel gas types or capacity ranges – see p. 11 Ordering Information
for Special Pilots Part Numbering approach.
The pilot is constructed of high quality materials, and each unit is checked and tested before
dispatch.
Acquaintance with the following instructions and strict attention to the indications reduce the possibility of
equipment failure to a minimum and ensure safety during normal operation.
FIGURE 1.
Gas pilot type SP-32-
NG/PG-
ND.
Air inlets
5
3
Gas inlet
7
- rod gland 1/2"
HESI igniter rod
2
1
L
~ 185 mm
1/2" BSP
O 32
~10 mm
4
View A-A
A
~10 mm
A
Detail B
HTI igniter rod
Spark&Sense
Detail B
Bleed orifice
Main orifice
Bracket
2:1
3:1
Electrical Igniter rod of OD 16 mm
(out of the pilot scope)
6
Main orifice
gas tube
Stabilizer plate
