Immersion Heaters
Flange Heaters
We provide high performance electric heaters, heating systems, and control solutions engineered for demanding industrial processes. Our products are certified to ATEX, IECEx, CCC, CCOE, and UL (safe area) standards, ensuring global safety and compliance.

FLANGE HEATERS
Flange Heaters Australia — Engineered Industrial Heating Solutions by Backer Cynebar Ohmic
Industrial processes often require precise and reliable heating of liquids, oils, chemicals and thermal fluids. Flange heaters are one of the most widely specified electric immersion heating technologies for these applications due to their high thermal efficiency, scalable power ratings and adaptability to demanding operating environments.
Backer Cynebar Ohmic, based in Brisbane, Australia, manufactures custom-engineered flange heaters for industrial applications across the mining, water treatment, energy, chemical processing, manufacturing and infrastructure sectors. As part of the global Backer Group, we combine local engineering support with proven heating element technologies to deliver reliable, long-life process heating solutions.
FLANGE HEATERS
What Are Flange Heaters?
A flange heater consists of multiple tubular heating elements welded or brazed into a mounting flange assembly. The heater is installed directly into a tank, pressure vessel or process system, allowing heat to be transferred directly into the process medium.
This immersion heating method offers several technical advantages:
- High thermal transfer efficiency
- Reduced heat losses compared to external heating methods
- Uniform heating of process fluids
- Fast heat-up times
- Accurate temperature control
- High power density capability
Flange heaters can be engineered for applications ranging from small process tanks through to large-scale industrial installations requiring hundreds of kilowatts or multiple megawatts of installed heating capacity.
FLANGE HEATERS
Typical Applications
Water and Process Fluid Heating
Flange heaters are commonly specified for:
- Process water systems
- Hot water storage tanks
- Boiler feedwater systems
- Demineralised water heating
- Wastewater treatment processes
Their direct immersion design provides efficient energy transfer while maintaining tight temperature control.
Oil and Fuel Heating
Industrial oils often require heating to maintain proper viscosity and flow characteristics. Flange heaters are widely used for:
- Fuel oil storage tanks
- Hydraulic oils
- Lubricating oils
- Transformer oil systems
- Marine fuel applications
Correct watt density selection is critical to prevent carbonisation and maximise heater life.
Bitumen and Asphalt Storage
Bitumen storage systems require controlled heating to maintain product handling characteristics. Custom-designed flange heaters provide reliable heat input while managing sheath temperatures and preventing localised overheating.
Chemical Processing
Flange heaters are frequently used within:
- Chemical reactors
- Storage vessels
- Batch processing systems
- CIP systems
- Mixing tanks
Material selection is tailored to the process chemistry to ensure corrosion resistance and long-term reliability.
FLANGE HEATERS
Engineering Considerations When Selecting a Flange Heater
Selecting the correct flange heater involves more than simply choosing a power rating.
Fluid Properties
Heater design should consider:
- Specific heat capacity
- Fluid density
- Thermal conductivity
- Viscosity
- Corrosive properties
These properties directly influence heating performance and element selection.
Watt Density
Watt density is one of the most important design parameters affecting heater lifespan.
Lower watt density designs typically provide:
- Longer element life
- Reduced surface temperatures
- Lower risk of fouling
- Improved reliability in viscous fluids
Backer Cynebar Ohmic engineers carefully match watt density to the process medium and operating conditions.
Heat-Up Requirements
Proper sizing requires consideration of:
- Tank volume
- Initial temperature
- Target temperature
- Heat-up time
- Continuous thermal losses
- Ambient conditions
Accurate thermal calculations ensure installed power is both technically suitable and economically efficient.
Process Control Integration
Flange heaters can be supplied with:
- RTDs
- Thermocouples
- Digital temperature controllers
- SCR power control systems
- High-temperature safety cut-outs
- PLC and SCADA integration
This enables precise process temperature management and protection against over-temperature conditions.
FLANGE HEATERS
Backer Cynebar Ohmic Manufacturing Capabilities
Backer Cynebar Ohmic designs and manufactures flange heaters to suit project-specific requirements rather than relying solely on standard catalogue products.
Available Options
Power Ratings
- From a few kilowatts to multi-megawatt installations
- Single-phase and three-phase designs
- Low and medium voltage options
Flange Configurations
- AS2129
- ANSI
- DIN
- Custom flanges
Element Sheath Materials
- 316 Stainless Steel
- Incoloy®
- Titanium
- Copper
- Mild Steel
- Specialised corrosion-resistant alloys
Control Panels
Complete heating packages can include:
- Control cubicles
- Power distribution equipment
- Temperature monitoring systems
- Safety interlocks
- Communication interfaces
FLANGE HEATERS
Reliability and Lifecycle Performance
For many industrial operators, the total cost of ownership is more important than initial purchase price.
Backer Cynebar Ohmic flange heaters are designed with a focus on:
- Long service life
- Maintainability
- Operational reliability
- Reduced downtime
- Optimised element loading
Replacement element bundles, spare parts support and local engineering assistance help reduce lifecycle costs and improve plant availability.
FLANGE HEATERS
Why Specify an Australian-Manufactured Flange Heater?
For Australian projects, local manufacturing offers significant advantages:
- Reduced lead times
- Faster engineering response
- Compliance with Australian project requirements
- Local technical support
- Simplified spare parts management
- Greater flexibility for custom designs
Manufacturing from our Brisbane facility also enables closer collaboration during design, commissioning and ongoing maintenance phases.
FLANGE HEATERS
Quality and Compliance
Backer Cynebar Ohmic operates under ISO 9001:2015 quality management systems, providing confidence in manufacturing consistency, traceability and product performance.
All flange heater designs can be developed to suit applicable project specifications, customer standards and industry requirements, including hazardous area applications where required.
FLANGE HEATERS
Partner with Backer Cynebar Ohmic
Whether you're specifying heating equipment for a new project, upgrading an existing process, or replacing legacy equipment, Backer Cynebar Ohmic provides engineering-led flange heater solutions tailored to your application.
Our team can assist with:
- Thermal calculations
- Heater sizing
- Watt density analysis
- Material selection
- Hazardous area requirements
- Control system integration
- Custom manufacturing
Contact Backer Cynebar Ohmic today to discuss your flange heater requirements and obtain a technically optimised solution engineered and manufactured in Brisbane, Australia.
FAQ
Frequently asked questions
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