| Immersion Heaters : |
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IH Immersion heaters provide a heat source with a highest
heating effeciency possible as all heat is generated within the solution
.This , combined with easy installation and accurate control , makes
electric immersion heaters highly useful in many industrial heating
processes . Water, Oils , solvents , plating baths , salts, wax ,
paraffin asphalts and molasses are some of the many liquids , viscous
materials , and solid with low melting points commonly heated with
electric immersion heaters |
| Typical Construction Features
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The basic tubular heater , with copper , steel
, stainless , incoloy or other sheath , is formed to suit a particular
applicaion in tanks , vats etc,. and mounted into one of the several
types of fixtures available . Wiring connections to the heaters
are made inside a protective terminal box ( where applicable ) with
most units designed to accept the thermowell housing a thermostat
sensing bulb or controller
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| Heater Sheath Materials : |
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Copper , steel , incoloy800, stainless steel types 304 and 316,
incoloy 825 and titanium.
- All screw - plug heaters may be fitted with junction boxes .
- Thermostats may hbe incorporated with these heaters in three
temperature ranges ( 0 -40 deg C ) ( 30 - 110 deg C ) ( 50 - 300
deg C ) .
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| Boss Sizes and Type Available
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1" BSP brass
1 1/4" BSP brass, steel, stainless steel.
2" BSP brass, steel , bronze, stainless steel.
2 1/2" BSP bronze, steel , brass . |
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| Bobbin Type heaters : |
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IH Ceramic Bobbin heaters when inserted into
a thermowell , offer a large heated area to the liquid or semi-solid
to be heated . Material such as oil , wax, fats and bitumen require
low heater surface temperature to prevent product degradation. For
these applications the Ceramic Bobbin heater is ideal. A Feature
of this type of heater is that it may be removed for repair or replacement
without draining the contents of the vessel.
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| Flanged Immersion heaters : |
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General Construction :
IH Standard immersion unit consists of a number of robust hairpin
shape heaters welded or glanded into a blind pipe flange .All units
have heaters in multiples of three for use with single or 3 phase
power supply, and terminated in a
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| protective steel junction box . |
| Installation : |
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The immersion units, having - standard pipe flanges
, are easily installed through a matching companion flange fitted
to the product tank, immersion heaters suitable for a variety of
positions in tanks , vats, pipes or irregular shaped vessels .
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| Control : |
| Provision is made for the installation of control /
or safety thermotats , sensing probes into protective wells , mounted
to the heater bundle flange. |
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| Over the Side : |
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IH Tubular over the side immersion heaters are
designed for use in liquids or solutions where easy removal of heaters
for periodic inspection or cleaning is necessary, and where modification
to an existing tank is inpracticable to suit other forms of heating.
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| Quartz Sheathed : |
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Construction :
The pure fused silica sheath is highly resistant to corrosion ,
thereby eliminating the possiblility of upsetting the chemical balance
of solutions by metallic contamination. A nickel-chrome alloy resistance
wire wound into a highly purity ceramic core , and centered in this
fused quartz tube gives a heater which is totally protected and
easily removed for maintenance .
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| Screw Plug : |
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Application :
For direct immersion by screw mounting through tanks walls
in the bottom or side of a container , and consists of one or more
tubular heaters welded into a standard thread boss units should
be near the bottom of the tank and be covered at all times by atleast
50mm of liquid.
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| Optional Control : |
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| IH Screw plug immersion heaters can be manufactured
having an integral control - thermostat housed within an o-ring sealed
junction box. |
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