Watlow Flanged Immersion Heaters

3"- 6" Flange Heaters with Baffles from WATLOW and Flow Factor

For a Quote, please use our Watlow Form HERE!

Watlow flanged immersion heaters are easy to install and maintain. Designed for heating liquids and gases in tanks and pressure vessels, ANSI 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.

Watlow 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.

Features and Benefits:

UL® and CSA component recognition.

ANSI and ANSI compatible 2, 2½, 3 thru 48 inch flanges.

Integral thermowells provide convenient temperature sensor insertion       and replacement without draining the fluid being heated.

Standard, general purpose terminal enclosure for easy access to wiring.

All units are inspected and/or tested to ensure element-to-flange pressure seals do not leak.

Specifications

Alloy 800 Material = 1600º Max. Temp and 100 Watt Density Max.

Stainless Steel Material = 1200º Max. Temp and 100 Watt Density Max.

Steel Material = 750º Max. Temp and 100 Watt Density Max.

Typical Applications

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

Options

Terminal Enclosures

General purpose terminal enclosures, without thermostats, are standard on all flange immersion heaters. Optional terminal enclosures include:

• General purpose with a single or double pole thermostat.

• Moisture resistant. Available with or without a single or double pole thermostat.

• Corrosion resistant. Available with or without a single or double pole thermostat.

• Explosion resistant Class 1, Div. 1 and 2, Groups B, C and D, T1-T6. Available with or without a single or double pole thermostat.

• Explosion/moisture resistant combinations. Available with or without a single or double pole thermostat.

Stand-off Terminal Enclosures

Stand-off terminal enclosures provide an air-insulating barrier between the flange and terminal enclosure by mounting the terminations and wiring away from the flange. Stand-off terminal enclosures are recommended whenever a process operating temperature exceeds 210°F (100°C). This helps minimize terminal enclosure temperatures.

Certified Enclosures

CSA, ATEX, IECEx or PESO certified enclosures protect wiring in hazardous gas environments.

ASME Pressure Vessel Code Welding

Flange assemblies can be provided with an ASME Section VIII, Div. I pressure vessel stamp upon request.

Thermostats

To provide process temperature control, Watlow offers optional single pole, single throw (SPST) and double pole, single throw (DPST) thermostats.

Unless otherwise specified, thermostats are mounted inside the terminal enclosure. Please verify that the thermostat’s sensing bulb outside diameter is compatible with the flange heater’s thermowell inside diameter.

Thermocouples

ASTM Type J or K thermocouples offer more accurate sensing of process and/or sheath temperatures. A thermocouple may be inserted into the thermowell or attached to the heater’s sheath.

Thermocouples are supplied with 120 in. (3050 mm) leads (longer lead lengths available). Unless otherwise specified, thermocouples are supplied with temperature ranges.

Using a thermocouple requires an appropriate temperature and power controller. These must be purchased separately. Watlow offers a wide variety of temperature and power controllers to meet virtually all applications. Temperature controllers can be configured to accept process variable inputs, too. Contact a Watlow representative for details.

To order, specify Type J or K thermocouple and lead length. Indicate if the thermocouple is for process temperature sensing or heater sheath high-limit protection. Please specify if the flange heater will be mounted vertical or horizontal in the tank. If vertical, specify if the housing is on top or bottom.

If the flange heater is part of an in-line circulation heating application, indicate flow direction relative to the heater’s enclosure.F

Wattages and Voltages

Watlow routinely supplies flange immersion heaters with 240 to 480VAC as well as wattages from 150 watts to one megawatt.

If required, Watlow will make heaters with voltage up to 600VAC and wattage beyond one megawatt.

Selected Watlow 3 inch Flange Heater part Numbers:

Watlow FMN715J10 6 kw , 120 volts

Watlow FMN715J11S 6 kw 480 volts

Watlow FMN721J10S  9 kw  120 volts

Watlow FMN721J11S  9 kw  480 volts

Watlow FMN727A3S 12 kw  240 volts

Watlow FMN727A5S 12 kw  480 volts

Watlow FMN732J3S  15 kw  240 volts

Watlow FMN732J5S  15 kw  480 volts

Watlow FMN738A3S  18 kw  240 volts

Watlow FMN738A5S  18 kw  480 volts

Watlow FMN751A5S  25 kw  480 volts

Watlow FMN760J5S  30 kw  480 volts

Selected Watlow 4 inch Flange Heater part Numbers:

Watlow FON715J10W  12 kw 240 volts

Watlow FON715J5W 12 kw 480 volts

Watlow FON721J10W 18 kw 240 volts

Watlow FON721J5W  18 kw  480 volts

Watlow FON727A10W  24 k  240 volts

Watlow FON727A5W  24 kw  480 volts

Watlow FON732J3W 30 kw  240 volts

Watlow FON732J5W   30 kw  480 volts

Watlow FON738A3W  36 kw  240 volts

Watlow FON738A5W  36 kw  480 volts

Watlow FON751J5W   50 kw  480 volts

Selected Watlow 5 inch Flange Heater part Numbers:

Watlow FNN715J3S  12 kw  240 volts

Watlow FNN715J5W  12 kw  480 volts

Watlow FNN721J3S  18 kw  240 volts

Watlow FNN721J5W  18 kw  480 volts

Watlow FNN727A3S  24 kw  240 volts

Watlow FNN727A5W  24 kw  480 volts

Watlow FNN732J3S  30 kw  240 volts

Watlow FNN732J5W  30 kw  480 volts

Watlow FNN738A3S  36 kw 240 volts

Watlow FNN738A5W  36 kw 480 volts

Watlow FNN751A5S  50 kw  480 volts

Watlow FNN760J5W  60 kw  480 volts

Selected Watlow 6 inch Flange Heater part Numbers:

Watlow FPN715G10XS  30 kw  240 volts

Watlow FPN715G5XW  30 kw  480 volts

Watlow FPN721G10XS  45 kw  240 volts

Watlow FPN721G5XW  45 kw  480 volts

Watlow FPN726R3XS  60 kw  240 volts

Watlow FPN726R5XW  60 kw  480 volts

Watlow FPN732G3XS  75 kw  240 volts

Watlow FPN732G5XW  75 kw  480 volts

Watlow FPN737R3XS  90 kw  240 volts

Watlow FPN737R5XW  90  kw  480 volts

Watlow FPN750R5XW  125  kw  480 volts

Watlow FPN760G5XW  150 kw  480 volts

For a Watlow Flanged Immersion Heater Quote, please use our Watlow Form HERE! 

Flow Factor

216-765-4231

www.flowfactor.com

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