North American High Velocity Family
Bulletin 4485
page 9
If the 4485 do es not suit your application, the original North
American Tempest® and HiRAM® high velocity burners off er
many features the 4485 SE type burners do es not. North
American is still developing new models, and enhancements to
our classic burners.
4441 TEMPEST
®
The 4441 Tempest® is the improved version of the innovative
4442, the original high velocity, high excess air, nozzle mix
burner that revolutionized the industrial heating industry. It off ers
many advanced features, including higher velocity, wider stable
operating range and lower NOx options. The high fi re capacity
range is 0.13M to 5.4M Btu/h HHV.
4445 TEMPEST
®
The 4445 Tempest® is a small diameter high velocity burner that
can be ordered to fi t in 9” to 40” thick walls. The 4445-capacity
range is 195K to 1.5M Btu/h HHV. They can be ordered with a
fl ame rod, or it can be omitted for UV fl ame supervision.
4575/6575 HIRAM
®
The 4575/6575 HiRAM® burners are low NOx high velocity
burners available in larger sizes.
Tile options include:
•
Slotted tiles for better temperture uniformity
•
Threaded metal tile exits, for unique mounting options
•
Engineered tile exits to provide higher velocities than
4485 type burners
•
Mounting plates that give the "A" style thin wall tiles
an 11" length.
•
Light weight ceramic tiles that can be used in up to
3000°F applications
Product
Highlights:
•
Stable operation to over 40"w.c. air inlet pressure.
•
Stable operation for applications that require excess
fuel.
•
Simple inexpensive cross connected control is available
over a wide range of operations.
•
Tested with the DMC ultra-low NOx control system.
•
All 4441s work with UV or Flame rod without
modifying the burner.
Tile exit options including:
•
Round or slotted ceramic tiles suitable for up to
2900°F operation
•
Round metal investment cast tiles (HT grade alloy)
•
Special metal tile option with outside diamter of 3
¼
"
with a capacity upt ot 690K Btu/h HHV
Product
Highlights:
•
Stable operation for applications that require excess air
or fuel.
•
Simple inexpensive cross connected control is available
over a wider range of operations.
Product
Highlights:
•
Sizes ranging from 4 to 25 million Btu/h HHV for natural
gas or propane
•
Available as the dual fuel 6575 for gas or light oil
from 6 to 25 million Btu/h HVV
•
Lights with direct spark or pilot (6575 pilot only)
•
Available with round refractory or metal alloy tiles
4441 Tempest®.
Shown with alumina/mullite slotted tile for
narrow lane fi ring and better temperature uniformity.
