Immersion Heaters - Screw Plug Immersion Heaters

By: Bucan  09-12-2011
Keywords: Stainless Steel, Industrial Applications, Water Tanks

Industrial immersion heaters are medium capacity heating units designed to heat liquids, viscous fluids, forced air and gases inside tanks, vessels and pipes. Bucan screw plug electrical immersion heaters are designed to be immersed directly into the gas or liquid being heated; since these heaters come into direct contact with the gas or liquid, heat up times are very fast.

Immersion heaters manufactured at Bucan consist of a single or a set of tubular elements that are formed into hairpins and welded to a screw plug.

The sheath material of the heating elements could be

  • steel,
  • copper,
  • stainless steel or
  • Incoloy.

The standard screw plug sizes utilized are 1”, 1 1/4, 2” and 2 1/2” and are either made of

  • steel,
  • brass or
  • stainless steel,

depending on the application. Various types of electrical protective enclosures, built-in thermostats, thermocouples and high limit switches can be incorporated into screw plug immersion heaters.

Immersion heaters may be used to to heat up flammable liquids or gases in industrial application. Contact us to inquire about our explosion proof housing units.

INDUSTRIAL APPLICATIONS FOR SCREW PLUG IMMERSION HEATERS:

  • WATER TANKS
  • DE-IONIZED, DE-MINERALIZED WATER
  • POTABLE AND PROCESS WATER
  • CAUSTIC SOLUTIONS
  • CHEMICAL BATHS
  • LUBRICATING OILS
  • HYDRAULIC OILS

WATT DENSITY AND SHEATH MATERIAL SELECTION TABLE:

Screw Plug NPT Plug Material Standard Element Diameter Max Voltage Phase Heating Elements Material Maximum Number of Elements
1 BRASS 0.315 300 V 1 COPPER 1
1 1/4   0.315 300 V 1   2
2   0.430 600 V 1 or 3   3
2 1/2   0.430 600 V 1 or 3   3

 

OPTIONAL FEATURES

  • Nema 4 (moisture proof) terminal box
  • Built-in Thermowell
  • Built-in single or double pole thermostats
  • Passivation for stainless steel and Incoloy heaters
  • Built-in process or high limit T/C
  • Special plugs or non-standard thread sizes

MAXIMUM TEMPERATURE AND SHEATH MATERIAL SELECTION TABLE:

Heater Sheath

Maximum Sheath Temp.

Used to heat

steel

750°F (400°C)

oil, hydraulic oil

copper

360°F (180°C)

water, tap/municipal only

Incoloy 800®

1500°F (815°C)

water, alkaline solutions, air, gases, radiant

Incoloy 840®

1400°F (760°C)

air, radiant

Inconel 600®

1600°F (870°C)

strong alkaline solutions, high temperature gases

stainless steel

1200°F (650°C)

De-ionized, de-mineralized, process water, some mild acids

 

Also see our selection of:


Keywords: Heating Elements, heating units, High Limit Switches, Immersion Heaters, Industrial Applications, Limit Switches, Screw Plug, Stainless Steel, Terminal Box, Water Tanks,

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