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Screwplug Immersion Heaters

MPI Morheat manufactures custom Screwplug Immersion Heaters for your specific application. Screw Plug Heaters from MPI consist of tubular elements which are brazed and welded into a machined thread fitting. These heaters are screwed directly through a threaded coupling in a pipe, tank wall, or vessel.

Screwplug Immersion Heaters are mainly used to heat up gases and liquids inside a tank, vessel or pipe.

MPI designs Screwplug Immersion Heaters for optimal heat transfer at a rapid rate, enabling quick heat up times.

  • 1“, 1 1/4”, 2” and 2 1/2” NPT pipe plug in brass, steel or stainless steel
  • .312” diameter element(s) on 1” and 1 1/4”; .430” diameter elements on 2” and 2 1/2”
  • Copper, steel, 321 stainless steel, or Incoloy 800 sheath material
  • High, medium and low watt densities for various processes
  • General purpose or explosion and moisture resistant terminal enclosures
  • Bends are repressed after forming to recompact MgO and extend element life
  • Single and double pole thermostats in several temperature ranges
  • Copper Sheath: Clean water, freeze protection, hot water storage, cooling towers, heating of solutions not corrosive to copper
  • Stainless Steel Sheath: Process water, soap and detergent solutions, soluble cutting oils, demineralized or delonized water (passivation recommended)
  • lncoloy Sheath: Solution water, corrosive solutions, steam super heating, air or gas
  • Steel Sheath: Asphalt, wax, paraffi n, tar, etc., heat transfer medium, petroleum, degreasing and solvent oils, machine oil, fuel oils, alcohol
NPT Thread Dimensions
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