Page 3
IPG-9
C. CAPACITIES
IPG_411 Pilot
NOTES
1. Capacities based on Natural Gas with HHV of 1034 BTU/ft
3
(Standard), and LHV of 10.21 kWh/nm3 (Metric), 0.62 S.G.,
and a stoichiometric ratio of 9.74:1 with burner firing into chamber under no pressure at 10% excess air.
2. Air and fuel flows based on STP operating conditions at sea level and industry standard air and gas piping practices.
3. Air flow to the pilot to be ambient temperature air with a minimum supply pressure of 13.9 in.w.c., or 34.5 mbar, up to a
maximum supply pressure of 56 in.w.c., or 140 mbar.
4. Fuel flow to the pilot to be ambient temperature with a minimum supply pressure of 13.9 in.w.c., or 34.5 mbar, up to a
maximum supply pressure of 28 in.w.c., or 70 mbar.
5. Pilot is suitable for use on gaseous fuels other than Natural Gas, consult Hauck.
Table 1. IPG_411 Pilot
NATURAL GAS, AMBIENT COMBUSTION AIR OPERATION
SPECIFICATIONS OPERATIONAL INFORMATION
Capacity
(at 10% Excess Air)
(BTU/hr)
11,000 16,000 18,000 20,000
(kW) 2.9 4.2 4.8 5.3
Air Capacity
(SCFH) 115 160 180 208
(nm
3
/hr) 3.1 4.3 4.8 5.6
Air Pressure (to the mixing tee)
(in.w.c.) 13.9 27.7 41.5 55.4
(mbar) 34.6 68.9 103.3 137.8
Gas Pressure (to inlet of regulator)
(in.w.c.) 13.9 13.9 13.9 13.9
(mbar) 34.5 34.5 34.5 34.5
Pilot Mixture Pressure
(in.w.c.) 5.0 10.0 14.5 20.8
(mbar) 12.4 24.9 36.1 51.8
Flame Length (at 10% Excess Air)
(in) 6.0 6.0 7.0 7.0
(mm) 152 152 178 178
Operating Limits
( Max)
2.25 2.00 1.85 1.75
( Min)
0.65 0.85 0.90 0.95
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