Watlow Electric Heater/Fan User Manual
Performance capabilities, Features, Benefits
Energy Efficient
Solution For Heating
Water, Oils and
Degreasing
Solutions
Designed for use in boilers and industrial storage tanks,
square flange immersion heaters offer an energy efficient
solution to heating water, oils and degreasing solutions.
Consisting of WATROD or FIREBAR
®
elements brazed or
welded to a four- or six-bolt flange, these heaters mount
directly to a mating flange that is welded to a tank wall or
nozzle.
Installation and maintenance are easy. Heater change-out is
also simple... unbolt the flange and replace it with another...
without extensive equipment downtime.
Performance Capabilities
• Watt densities to 100 W/in
2
(15.5 W/cm
2
)
• Wattages to 24 kW
• Voltages to 480VAC
• Incoloy
®
sheath temperatures to 1600
O
F (870
O
C)
S Q U A R E F L A N G E I M M E R S I O N H E A T E R S
Features
• 2
1
⁄
2
, 3
1
⁄
8
and 4
1
⁄
2
inch
square flanges
• Asbestos-free gaskets
• Epoxy or silicone resin
seals rated to 250
O
F
(120
O
C) or 390
O
F (200
O
C)
respectively
• WATROD hairpins are
repressed (recompacted)
• UL
®
and CSA component
recognition under files
#E52951 and 31388
respectively
Benefits
• Mulitiple sizes to adapt to
application needs
• Provide good seal between
flanges
• Protect elements against
moisture and other
contaminants
• Maintains MgO density,
dielectric strength, heat
transfer and life
• Designed for safety
Incoloy
®
is a registered trademark of the Inco family of companies.
UL
®
is a registered trademark of Underwriters Laboratories, Inc.
A subsidiary of Watlow, Designer and Manufacturer
of Industrial Heaters, Sensors and Controls
6 Industrial Loop Road
Hannibal, Missouri 63401 USA
Phone: 573-221-2816
Fax: 573-221-3723
Internet: www.watlow.com
Watlow Industries
© 1999 Watlow Electric Manufacturing Company
FAX-1944-036