Circulation Heater - Image 1 - Industrial Heating Element by Subhot Enterprises
Circulation Heater - Image 2 - Industrial Heating Element by Subhot Enterprises
Circulation Heater - Image 3 - Industrial Heating Element by Subhot Enterprises
Circulation Heater - Image 4 - Industrial Heating Element by Subhot Enterprises
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Key Features & Benefits

Inline design for continuous flow heating
Fast heat-up and tight temperature tolerances
Hazardous-area certified options

Circulation Heater

Process Heaters Made in India ISO 9001:2015

Circulation Heaters represent advanced inline fluid heating technology specifically engineered for continuous heating of process fluids, oils, chemicals, and other industrial liquids in pipeline systems. These sophisticated heating assemblies feature compact design integration with robust, corrosion-resistant pressure vessels and precision-engineered inlet/outlet flanges for seamless integration into existing pipework and fluid handling systems. The innovative inline configuration enables efficient continuous flow heating while maintaining optimal fluid velocity and minimizing pressure drop throughout the heating process.

Manufactured using premium-grade materials and advanced engineering techniques, these heaters incorporate high-efficiency MgO-filled tubular heating elements constructed from NiCr or FeCrAl alloys, ensuring exceptional heat transfer characteristics and long-term operational reliability. The pressure-rated vessel construction utilizing stainless steel, carbon steel, or Incoloy materials provides superior corrosion resistance and mechanical strength for demanding industrial applications. The robust design enables safe operation at pressures up to 20 bar while maintaining structural integrity and thermal performance under continuous operation.

These versatile heating solutions provide rapid, uniform heating of fluids at controlled flow rates, making them ideally suited for heating hazardous liquids, viscous oils, chemicals requiring precise temperature control, and specialized process fluids where contamination must be avoided. The inline design eliminates the need for external heating loops or complex piping arrangements, reducing installation complexity and maintenance requirements while improving overall system efficiency and reliability.

Advanced engineering features include precision-machined ASTM, ANSI, or DIN flange connections ensuring leak-proof mounting and compatibility with standard piping systems. Optional ceramic fiber insulation jackets minimize heat loss while providing thermal protection for operators and surrounding equipment. Weather-resistant terminal enclosures with IP65/67 ratings ensure reliable electrical connections and environmental protection in demanding industrial environments. Integrated temperature sensors and control systems enable precise thermal management and automated operation.

As energy-efficient heating solutions for modern fluid processing operations, Circulation Heaters offer superior thermal efficiency through optimized heat transfer design and minimal heat loss characteristics. The compact inline configuration reduces installation footprint and system complexity while providing exceptional heating performance and process control capabilities. Optional hazardous area certifications including ATEX and IECEx enable safe operation in classified locations, making these heaters essential for industries requiring reliable, efficient, and safe fluid heating in critical process applications.

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Components of Circulation Heater

High-Efficiency Heating Elements

Premium MgO-filled tubular coils manufactured from NiCr or FeCrAl alloys providing exceptional heat transfer efficiency, uniform temperature distribution, and extended operational life.

Pressure-Rated Vessel

Robust stainless steel, carbon steel, or Incoloy pressure vessel rated to 20 bar (300 PSI) for high-pressure applications, featuring corrosion-resistant construction and structural integrity.

Precision Flange Connections

ASTM, ANSI, or DIN standard flange connections ensuring leak-proof mounting, easy installation, and compatibility with existing piping systems and process equipment.

Thermal Insulation Jacket

High-temperature ceramic fiber and metal jacket insulation minimizing heat loss, improving energy efficiency, and providing thermal protection for operators and surrounding equipment.

Weather-Resistant Terminal Enclosure

IP65/67-rated terminal box with ceramic terminal blocks and cable glands ensuring safe electrical connections, environmental protection, and reliable long-term performance.

Advanced Control System

Optional integrated control panels featuring PID temperature controllers, over-temperature protection, safety interlocks, alarms, and automation interfaces for precise process control.

Technical Specifications

Detailed technical specifications for Circulation Heater with industry-leading performance standards

Product Specifications

Complete technical details and performance parameters

Parameter Specification
Vessel Material Options
Primary specification
Stainless Steel (SS316/304), Carbon Steel, Incoloy
Premium quality
Heating Element Material
NiCr, FeCrAl alloys with MgO insulation
Premium quality
Maximum Operating Temperature
Up to 650°C (1202°F)
High performance
Maximum Watt Density
Up to 10 W/cm² (application dependent)
Voltage Options
110V, 240V, 440V AC (custom voltages available)
Power Rating Range
1 kW to 300 kW+ (custom ratings available)
Pressure Rating
Up to 20 bar (300 PSI) - custom ratings available
Flow Rate Capacity
1–1000 L/min (depending on model and application)
Connection Size Range
½″ to 8″ ANSI/DIN flanges (custom sizes available)
Temperature Control Accuracy
±1°C with integrated sensors and controllers
High performance
Insulation Options
Ceramic fiber, mineral wool, custom insulation
Enclosure Rating
IP65/67 standard, hazardous area options available
Service Life
5 to 10+ years typical industrial operation
Mounting Options
Horizontal, vertical, custom orientations available
All specifications are subject to customization based on application requirements.
ISO 9001:2015 CE Marked RoHS Compliant

Industrial Applications

Discover how Circulation Heater delivers superior performance across diverse industrial sectors

Popular

Chemical process fluid heating and temperature control

Corrosion resistant
Safety certified
50+ successful installations
Popular

Heavy and light oil heating in petrochemical facilities

Corrosion resistant
Safety certified
67+ successful installations
Popular

Hazardous liquid heating (acids, solvents, chemicals)

Corrosion resistant
Safety certified
84+ successful installations

Deionized water heating for semiconductor manufacturing

Superior performance
Proven reliability
101+ successful installations

Viscosity control in food processing and chemical lines

Corrosion resistant
Safety certified
118+ successful installations

Thermal oil circulation and heating systems

Superior performance
Proven reliability
135+ successful installations

Power plant water and steam heating applications

Superior performance
Proven reliability
152+ successful installations

Pharmaceutical manufacturing fluid processing

Superior performance
Proven reliability
169+ successful installations

HVAC water heating and temperature maintenance

Superior performance
Proven reliability
186+ successful installations

Industrial cleaning solution heating

Superior performance
Proven reliability
203+ successful installations

Paint and coating material heating systems

Superior performance
Proven reliability
220+ successful installations

Adhesive and polymer processing applications

Superior performance
Proven reliability
237+ successful installations

Marine and offshore fluid heating systems

Superior performance
Proven reliability
254+ successful installations

Laboratory and pilot plant heating applications

Superior performance
Proven reliability
271+ successful installations

Trusted Across Industries

From automotive giants to pharmaceutical leaders, industries across India trust Subhot for their heating solutions

Steel & Metal

Automotive

Chemical

Food & Beverage

Pharmaceutical

Research Labs

Key Features & Benefits

Experience the superior features that make Circulation Heater the preferred choice for industrial heating

Uniform temperature profile across entire fluid flow path

Precise temperature control for consistent results.

Minimal heat loss through advanced insulated vessel design

Quality engineering for reliable performance.

Skid-mountable or panel-mountable assemblies available

Quality engineering for reliable performance.

Replaceable heating elements without complete system shutdown

Quality engineering for reliable performance.

Low maintenance requirements with extended service intervals

Low maintenance with easy access components.

Precise temperature control with integrated sensor systems

Precise temperature control for consistent results.

Corrosion-resistant materials for demanding chemical environments

Quality engineering for reliable performance.

High-pressure capability up to 20 bar (300 PSI)

Quality engineering for reliable performance.

Compact inline design reducing installation footprint

Quality engineering for reliable performance.

Energy-efficient operation with optimized heat transfer

Quality engineering for reliable performance.

Hazardous area certifications for classified locations

Quality engineering for reliable performance.

Custom configurations for specialized process requirements

Quality engineering for reliable performance.

Advanced safety features and over-temperature protection

Precise temperature control for consistent results.

Multiple mounting orientations for flexible installation

Flexible mounting options for any space.

Frequently Asked Questions

A Circulation Heater is an inline electric heating system designed to heat liquids or gases as they flow through a pressurized chamber. It consists of high-efficiency heating elements housed within a pressure-rated vessel with inlet and outlet ports for continuous fluid movement. As fluid enters the inlet, it contacts the heating elements and exits at elevated temperature, ensuring uniform heating and consistent temperature control throughout the process.
Circulation Heaters are extensively used in chemical processing plants, oil and gas industries, food and beverage production, HVAC systems, pharmaceutical manufacturing, power generation facilities, water treatment plants, petrochemical processing, and industrial fluid heating applications where continuous inline heating and precise temperature control are essential for operational success.
These heaters are suitable for heating water, thermal oils, diesel fuel, heavy fuel oil, compressed air, nitrogen gas, steam, glycol solutions, chemical process fluids, pharmaceutical liquids, food-grade fluids, and specialized industrial chemicals in both closed-loop and open-loop systems depending on application requirements and fluid compatibility.
Our Circulation Heaters can handle fluid temperatures ranging from ambient to 650°C (1202°F), depending on the fluid type, flow rate, pressure requirements, and specific application conditions. Custom temperature ranges can be engineered to match unique process requirements and operational parameters.
We manufacture Circulation Heaters in 110V, 230V, 415V AC configurations, and custom voltage ratings with power output ranging from 1 kW to 300 kW or higher depending on fluid heating requirements, flow rates, and temperature rise specifications. Single-phase and three-phase configurations are available to match electrical infrastructure requirements.
Yes, we offer complete customization of pressure vessel size, power rating, flange connections, material selection, terminal box specifications, insulation thickness, mounting orientation, and control system integration to perfectly match your specific process requirements and installation constraints.
Yes, we manufacture ATEX, IECEx, and PESO-certified flameproof and explosion-proof Circulation Heaters for safe operation in Zone 1 and Zone 2 hazardous areas. These units feature certified components, explosion-proof enclosures, and safety systems ensuring reliable operation in volatile environments.
Our Circulation Heaters can be mounted in horizontal or vertical orientations and include support options such as saddle mounts, skid bases, wall brackets, and custom support structures based on your installation requirements, space constraints, and piping configuration needs.
Temperature control is achieved using integrated RTD or thermocouple sensors connected to digital PID temperature controllers, thermostats, or PLC systems for precise regulation. Advanced control options include modulating control, multi-zone heating, and automated safety systems ensuring optimal process conditions and operational safety.
Circulation Heaters provide uniform fluid heating, reduced energy losses, compact inline design, clean and safe operation, minimal maintenance requirements, precise temperature control, and continuous process heating capabilities in pipelines and process systems. They eliminate the need for external heating loops and complex piping arrangements, reducing installation costs and system complexity.
Yes, Subhot Circulation Heaters are ideally suited for heating light and heavy oils including fuel oil, thermal oil, lubricating oil, transformer oil, and specialized industrial oils. The corrosion-resistant construction and precise temperature control ensure optimal viscosity management and safe heating of petroleum products.
With proper installation, appropriate fluid quality maintenance, and operation within rated parameters, our Circulation Heaters deliver 5 to 10 years or longer of reliable service in demanding industrial applications. The robust construction, premium materials, and advanced engineering ensure extended operational life with minimal maintenance requirements.
Yes, thermal insulation including mineral wool, ceramic fiber blankets, or specialized high-temperature insulation is applied to the vessel exterior to minimize heat loss, improve energy efficiency, and ensure operator safety. Custom insulation specifications are available based on operating temperature and environmental conditions.
Subhot Enterprises Pvt. Ltd. is a leading manufacturer of industrial heating solutions with extensive expertise in fluid heating technology. We provide custom-engineered Circulation Heaters with premium materials, rigorous pressure testing per ASME/IS standards, expert technical support, comprehensive safety certifications, fast delivery, and complete after-sales service ensuring optimal heating solutions for your critical process applications.

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