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Flanged Immersion Heaters

Product Overview

Flanged Immersion Heaters consist of hairpin bent tubular elements welded or brazed into a flange and provided with wiring boxes for electrical connections. Flange heaters are installed by bolting to a matching flange welded to the tank wall or nozzle.

Applications

Flanged immersion heaters are one of the most widely used methods for heating gases and liquids (such as water, oil, heat transfer fluid and corrosive solutions). Designed for use in tanks and pressurized vessels, they are easy to install and maintain to provide heat for many processes. The direct immersion method is energy efficient and easily monitored and controlled.

Hot Water Storage Tanks
Warming Equipment
Preheating All Grades of Oil
Food Processing Equipment
Cleaning and Rinsing Tanks
Heat Transfer Systems
Process Air Equipment
Boiler Equipment
Freeze Protection of Any Fluid

Application Guides

Application	Sheath Material	Flange Material	Heater Type

Clean Water	Copper	Steel	TM
Process Water	Stainless	Steel	TMS
Solution Water	Incoloy	Steel	TMI
Mild Corrosive	Stainless	Steel	TMS
Corrosive	Incoloy	Steel	TMI
Severe Corrosive	Incoloy	Stainless	TMIS
Demineralized	Incoloy	Stainless	TMIS
Boiler	Copper Incoloy Copper	Brass Steel Steel	TTSF TTSF WCFS
Light Oil	Steel	Steel	TMO
Medium Oil	Steel Steel	Steel Steel	TMO TMO-3
Heavy Oil	Steel	Steel	TMO
Food Equipment	Copper	Brass	TTUH
Food Equipment with Cutout	Copper	Brass	TTUH-CO

Technical and Application Data

Description

These thru-the-side immersion heaters utilize standard pipe flanges ranging from 3 to 14" in diameter to support high tank pressures of superheated steam, compressed gases or liquids. They are installed through a matching companion flange (obtainable from local industrial supply houses) to the tank wall. A wide selection of Watt densities, heating outputs and flange sizes and ratings make this an excellent heater for all tanks, vats or irregularly shaped vessels.

Terminal Enclosures

Type E1
General Purpose, sheet metal (NEMA 1) painted with red enamel

Type E2
Combination Moisture Resistant, Explosion Resistant

Type E3
Explosion Resistant

Type E4
Moisture Resistant

Type E2 and E3
Explosion Resistant enclosures involve the use of a wiring enclosure for use in hazardous location conditions:

Class I Groups B, C & D, Division 1 & 2

Class II Groups E, F & G, Division 1 & 2.

Safe operation of heaters equipped with these enclosures depends on employment of electrical wiring meeting the National Electrical Code for hazardous locations and limiting maximum operating temperatures (including temperatures on outside of vessel, piping, flanges, screw plugs, enclosures and other heat conducting parts) as dictated by flammable liquids, vapors or gases present. Approved pressure and/or temperature limiting controls must be used to assure safe operation in the event of a system malfunction.

Temperature Controls

A thermostat protective well is standard on most models. This well is installed through the flange, parallel with the heating elements. An AR type on-off mechanical control can be externally mounted to the heater with the capillary bulb installed in this well (order separately — see Controls section for details).

A contactor is needed when the line voltage and/or current exceeds the thermostat rating.

Other types of controls and sensors are available where a high degree of accuracy or a more versatile control scheme is required. Electronic controls and complete control panels are easily installed.

Other types of controls and sensors are available where a high degree of accuracy or a more versatile control scheme is required. Electronic controls and complete control panels are easily installed.

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Flanged Immersion Heaters

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