Flanged Immersion Heater

A flanged immersion heater is an industrial electric heating solution designed for direct heating of water, oil, chemical solutions, and other compatible liquids. Heating elements are welded to a flange, allowing the heater to be securely installed on tanks, vessels, boilers, and industrial process equipment.

EaseWise supplies standard and custom flanged immersion heaters with different flange sizes, heating tube diameters, immersion lengths, voltage, and power ratings. Sheath materials including SUS304, SUS316L, SUS321, copper, Incoloy, and titanium are available for different liquid and operating conditions.

Standard models are available from 3 kW to 24 kW. Custom voltage, power, dimensions, materials, flange configurations, and thermowells are available for specific heating requirements.

View our complete immersion heater product range

Flanged Immersion Heater Features

• Direct Immersion Heating: Transfers heat directly into liquids for efficient heating and temperature maintenance.
• Flange-Mounted Design: Suitable for tanks, vessels, boilers, and industrial process equipment.
• Multiple Flange Configurations: Threaded and round flange designs are available for different installation requirements.
• Flexible Heating Dimensions: Heating tube diameters from Φ6 mm to Φ20 mm and immersion lengths from 150 mm to 1500 mm.
• Multiple Power Options: Standard power ratings from 3 kW to 24 kW.
• Multiple Sheath Materials: SUS201, SUS304, SUS316L, SUS321, copper, and other materials are available.
• Corrosion-Resistant Options: Incoloy 800, Incoloy 840, titanium, and PTFE-coated options are available for demanding applications.
• Flexible Voltage: 12V to 600V electrical configurations can be manufactured according to requirements.
• Temperature Sensing: Optional thermowell for thermocouple or RTD installation.
• Replaceable Heating Tubes: Available for selected constructions to simplify maintenance.
• OEM Customization: Non-standard dimensions, materials, electrical specifications, and flange configurations can be manufactured to order.

Technical Parameters

Stock Reference Sizes

EaseWise provides standard configurations for common industrial liquid heating applications. The following ranges can be supplied as stock or standard reference configurations, while non-standard specifications can be manufactured to order.

Optional: Stock and standard configurations can be supplied with a built-in thermowell for temperature sensor installation according to application requirements.

Remarks

• Standard models are available in common flange sizes, heating tube diameters, immersion lengths, and power ratings.
• Non-standard dimensions and electrical specifications can be manufactured according to customer requirements.
• A thermowell can be added for thermocouple or RTD installation.
• For heavy oil and high-viscosity media, lower surface watt density should be selected to reduce localized overheating.
• Sheath material should be selected according to the liquid composition, operating temperature, and corrosion conditions.
• For corrosive liquids, titanium, PTFE-coated, Incoloy, or other suitable materials can be considered.
• The heating element must remain properly immersed in the heating medium during operation.

Flanged Immersion Heater Applications

Flanged immersion heaters transfer heat directly into liquids, making them suitable for industrial tanks, process vessels, boilers, and other equipment requiring reliable liquid heating or temperature maintenance. For more application-specific information, see our immersion heater applications guide.

Water, Oil and Storage Tank Heating

Flanged immersion heaters can be installed in water tanks, storage tanks, oil tanks, and process vessels for heating and temperature maintenance of water, thermal oil, heavy oil, and other compatible liquids.

Petrochemical and Industrial Process Heating

These heaters are suitable for petroleum, petrochemical, machinery manufacturing, surface treatment, electroplating, and other industrial processes where direct liquid heating is required.

Food and Beverage Processing

Flanged immersion heaters can be used in ingredient tanks, cleaning tanks, brewing equipment, and pasteurization systems when the heater material and construction are suitable for the specific process.

Corrosive Liquid Heating

For corrosive salt solutions, acidic or alkaline media, and other demanding chemical applications, corrosion-resistant materials such as titanium, PTFE-coated elements, or suitable Incoloy alloys can be selected.

Boilers and Industrial Equipment

Flanged immersion heaters can be integrated into hot water boilers, industrial cleaning machines, hydraulic oil stations, dishwashing equipment, and other process heating systems.

Immersion Heater Materials and Sheath Selection

Sheath material affects corrosion resistance, service life, and suitability for different liquids. The appropriate material should be selected according to the liquid composition, operating temperature, and chemical environment.

For a practical comparison of common sheath materials, see our Immersion Heater Materials & Sheath Selection Guide.

Custom Flanged Immersion Heater

EaseWise supports OEM and non-standard flanged immersion heater manufacturing. Each heater can be customized according to tank dimensions, liquid type, required heating capacity, installation space, and electrical requirements.

• Custom flange diameter and bolt pattern
• Custom NPT or BSP threaded flange
• Custom DN flange sizes
• Custom heating tube diameter
• Custom immersion length
• Custom voltage up to 600V
• Custom power rating
• Custom sheath material
• Custom flange material
• Thermowell for thermocouple or RTD
• Custom terminal and connection configuration
• OEM production according to drawings or samples

When requesting a customized heater, please provide the liquid type, tank or vessel dimensions, required temperature, voltage, power, immersion length, and flange specification.

How to Choose a Flanged Immersion Heater

Select the heater according to the liquid type, tank or vessel size, required temperature, available flange connection, immersion length, voltage, and heating power. See our Immersion Heater Sizing Guide for guidance on heater power, immersion length, and selection.

For water and lower-viscosity liquids, the required power can generally be selected according to the tank volume and heating time. For heavy oil or high-viscosity liquids, lower surface watt density is normally preferred to reduce localized overheating.

For corrosive liquids, select the sheath material according to the chemical composition and operating conditions. Titanium, PTFE-coated elements, Incoloy, and suitable stainless steel grades may be considered depending on the application.

Related Immersion Heater Products

Contact EaseWise

For pricing, stock availability, technical specifications, or a custom flanged immersion heater, please contact our sales team.

Amy – Sales
Email: [Amy-Easewise@tzheater.com](mailto:Amy-Easewise@tzheater.com)
WhatsApp: +86 188 8318 8154

Hanna – Sales
Email: [Hanna-Easewise@tzheater.com](mailto:Hanna-Easewise@tzheater.com)
WhatsApp: +86 173 5163 6811

Need a custom flanged immersion heater? Send us your flange size, heating length, liquid type, voltage, power, and quantity for a quotation.