ELECTRIC IMMERSION HEATERS are extremely useful in many applications. High heating efficiency and accurate control are maintained due to the heat being generated within the solution.

These elements are easily installed and are often used to heat liquids, viscous materials and solids with low melting points. Some common substances include solvents, oil, water, plating baths, salts, wax, paraffin, asphalt and molasses.

Design of shape, sheath and mounting can also be specific to the application. The heat absorption rate of substances will often determine the heat intensity (watt density) of the element. Usually low or mild heat is used for oils and soft metals and more intense heat is required for water and salts.

For accurate temperature control a thermowell is fitted which then enables for single or 3 phase thermostat inclusion.

Most of our product range is manufactured with 316, 321 stainless steel or Incoloy 800 element sheaths. However Thermal can design specific heaters with different sheaths (such as titanium or lead), shapes, sizes, wattages and voltages as required for your application.

The heater mounting can also be designed to suit the application and vessel accessibility.

The most common method of applying heat to a tank or vessel's contents without limiting work area are:

· Screw in: for small to medium size containers
· Over the side: a heavy duty element for portable situations
· Withdrawable: - Tubular or Ceramic Bobbin

Suitable for small and medium sized containers. The tubular elements are brazed or welded into a BSP bush and a terminal housing is provided for electrical connections.

INSTALLATION: The heater is screwed into a female BSP fitting in the tank or into a pipe coupling or half coupling.

APPLICATIONS: Hot water storage, fluid heating - eg. tar, asphalt, wax, oil, caustic soda, detergent, sterilising equipment, gases.

FEATURES: A compact heater for areas where over the side heaters cannot be used - eg. closed in tanks.

OPTIONS:
· can be manufactured in stainless steel, Incoloy, titanium
· various wattages and voltages
· various element diameters
· several BSP bush sizes available - ranging from 3/8" BSP to 4" BSP
· assorted shapes - eg. trombone, u-shaped, triple loop, fold back, coiled
· several termination variations
· 3 phase - Star or Delta options.

Portable over the side immersion heaters are compact and portable enough to move from tank to tank and guarantee minimal interference with the production process. They can easily be re-positioned along the tank wall to improve heat distribution and are ideal where removal of the heater is required for periodic cleaning and inspection of the tank.

These heaters are available for heating water, light weight oils, salt baths, alkaline cleaning solutions, cyanide plating solutions, citric juices, acid baths and other corrosive liquids.

Standard units up to 4000W come complete with terminal enclosure and thermostat control. If our stock range of heaters are not suited to your application, then custom manufactured units can be made available to suit your requirements.

INSTALLATION: Simply place over side wall of tank.

FEATURES:
· Portable
· Economical
· Ease of maintenance

APPLICATIONS: Heating all solutions where drainage of the tank is impractical.

OPTIONS:
· can be manufactured in stainless steel, Incoloy, titanium, lead
· various wattages and voltages
· various element diameters
· terminal enclosure fully moisture resistant
· rubber seals
· 3 phase - Star or Delta options
· digital temperature controls
· programmable timers
· various watt densities

Information required when enquiring:
1. Length of tank
2. Depth of tank
3. Solution to be heated
4. Available power supply
5. Minimum liquid level

Suitable for square, rectangular or circular tanks. Single or 3 phase units with element multiples of 3 and stage wired.

Information required when enquiring:
1. Length of tank
2. Depth of tank
3. Solution to be heated
4. Available power supply
5. Minimum liquid level
6. Temperature required
7. Time to heat solution

OPTIONS:
· programmable timers
· controllers
· stage heating
· fully water resistant control enclosure

The Heat Coil series of heaters are manufactured in Australia and are designed for use in the chemical, electroplating and metal finishing industries. A robust design with heaters being manufactured from 316SS, Incoloy and Titanium sheaths ensuring a long lasting reliable and hassle free package.

TEFLON SLEEVED

Used in solutions where previously only Vitrosol or Quartz heaters were available. Now a robust package is here! No fragile sheaths, no cracking or breakages. A reliable and rigid Incoloy metal sheathed element with a non contaminating, chemical resistant Teflon sleeve. A 0.75mm wall thickness of teflon gives a safe barrier between the solution and the heating element.

Teflon Heat Coils are compatible with most plating tank solutions and are inert to acids, pickling and anodising solutions up to 90° C.

• S.S. terminal/control enclosures

• Standard or digital temperature controls

• Various voltages and wattages available on request

• 90° angled terminal enclosure to tank

TUBULAR
S.S. sheathed alternative to the standard ceramic bobbin type. The withdrawable tubular has been designed and manufactured to outlast its ceramic counterpart, which is fragile and will deteriorate much sooner through physical damage. Tubular withdrawables are suitable for applications where replacement or repairs are to be carried out without disturbing the contents of the tank.

INSTALLATION: This is achieved by inserting the withdrawable tubular into a nominal diameter tube - commonly known as the thermowell - ranging from 50mm dia for standard units, up to 100mm dia for specials. The thermowell may be the permanent fixture of the tank or it can be supplied as a separate removable tube with 2" BSP boss which then can be fitted to a mating tank socket.

FEATURES: Robust, suitable for harsh conditions and extremely resistant to mechanical or physical abuse, or where vibration may occur.

APPLICATIONS: Suitable for all solutions where drainage of the tank in impractical and where direct heating is not achievable or recommended. Materials such as bitumen, was, fats and oils require low element surface temperature to prevent product degradation.

OPTIONS:
· can be manufactured in stainless steel or Incoloy
· various wattages and voltages
· various element diameters
· can be manufactured to Zone 1 Class 1 standards
· several terminal variations

CERAMIC BOBBIN
A low cost alternative to the S.S. tubular type and are also suitable for applications where replacement or repairs are to be carried out without disturbing the contents of the tank.

INSTALLATION: Is achieved by inserting the ceramic bobbin into a 50mm nominal dia tube - commonly known as the thermowell. The thermowell may be a permanent fixture of the tank or it can be supplied as a separate removable tube with 2" BSP boss which then can be fitted to the mating tank socket.

APPLICATIONS: As per withdrawable tubulars.

Please note Ceramic Bobbins are MADE TO ORDER ONLY.

Information required when enquiring:

· voltage
· number of phases
· wattage
· penetration length
· cold length

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