ANSI Flange Immersion

Watlow flanged immersion heaters are easy to install and maintain. Designed for heating liquids and gases in tanks and pressure vessels, flanged immersion heaters are ideal for applications requiring higher kilowatts.

Watlow flanged immersion heaters are made with WATROD or FIREBAR tubular elements brazed or welded to a flange. Stock flange heaters are equipped with a general purpose terminal enclosure.

Flanged immersion heaters, with FIREBAR elements, also answer the need for liquid immersion applications requiring high kilowatts in small tanks. The FIREBAR element’s unique flat surface geometry packs more power in a smaller bundle, with lower watt density, making it especially well-suited for petroleum-based liquid heating applications.

Specifications:

Material	Maximum Operating Temperatures		Maximum Watt Densities
Material	°F	°C	W/in²	W/cm²
Alloy 800	1600	870	100	15.5
Stainless steel	1200	650	100	15.5
Steel	750	400	100	15.5
N/A	350	175	100	15.5

A conventional round tubular 10-inch ANSI flange can be replaced by a 6-inch ANSI FIREBAR flange
Watt densities to 100 W/in² (15.5 W/cm²)
Wattages to three megawatts
UL® and CSA component recognition to 600VAC
Passivated 316 stainless steel sheath temperatures to 1200°F (650°C)
304 stainless steel sheath temperatures to 1200°F (650°C)
Steel sheath temperatures to 750°F (400°C)
FIREBAR flange heaters deliver more killowatts in smaller bundles
Alloy 800/840 sheath temperatures to 1600°F (870°C)

Applications:

Deionized water
Demineralized water
Clean water
Potable water
Process water
Industrial water rinse tanks
Vapor degreasers
Hydraulic oil, crude, asphalt
Lubricating oils at API specified watt densities
Air and gas flow
Chemical baths
Process air equipment
Boiler equipment
Freeze protection of any fluid
Anti-freeze (glycol) solutions
Paraffin

Features & Benefits:

Features	Benefits
ANSI and ANSI compatible 2, 2½, 3 thru 48 inch flanges	Provides appropriate heater size-to-application and fit
Element sheath and flange materials	Meets your application needs
Integral thermowells	Provides convenient temperature sensor insertion and replacement without draining the fluid being heated
Standard, general purpose terminal enclosure	Offers easy access to wiring
All units are inspected and/or tested	Ensures element-to-flange pressure seals do not leak
Drilled and tapped eyebolt holes or lift lugs for eye bolts on 10 inch and larger flange heaters	Facilitates lifting during installation
WATROD hairpins are repressed (recompacted)	Provides improved heater life, insulation resistance and heat transfer
Element support(s)	Provides proper element spacing to maximize heater performance and life