Explosion-Proof Electric Heaters
Introduction
Xiangyuan manufactures explosion-proof electric heaters for hazardous-area heating applications in oil and gas, petrochemical, chemical processing, marine, and industrial process environments.
Our explosion-proof heating products can be designed for air, gas, liquid, oil, tank, pipeline, duct, circulation, and skid-mounted heating applications. Heater body, terminal box, control cabinet, temperature monitoring, and safety interlock can be configured according to the operating environment and project requirements.
Explosion-proof designs are available for hazardous-area applications, including Ex db IIC T1-T6 Gb certified options where applicable.
Why Choose Our Explosion-Proof Electric Heaters
✔ Designed for hazardous-area air, gas, liquid, duct, and process heating
✔ Explosion-proof terminal box, heater body, and control cabinet options
✔ Custom temperature class, material, pressure, and safety protection design
✔ Integrated over-temperature, low-flow, pressure, leakage, and interlock protection
✔ Suitable for oil and gas, petrochemical, chemical, marine, and industrial sites
✔ Project documentation, wiring diagrams, inspection records, and operation guidance available
Typical Technical Parameters
| Parameter | Typical Range / Options |
|---|---|
| Heating Medium | Air, nitrogen, process gas, thermal oil, crude oil, heavy oil, water, chemical liquid, and process fluid |
| Heating Power | 2 kW – 2000 kW, customized according to process requirements |
| Temperature Range | Customized according to medium, hazardous area, and temperature class requirements |
| Operating Pressure | Atmospheric pressure to 1.0–2.5 MPa; high-pressure designs available upon request |
| Explosion-Proof Type | Explosion-proof heater body, terminal box, control cabinet, or complete heating system |
| Certification Option | Ex db IIC T1-T6 Gb options available where applicable |
| Materials | Carbon steel, SS304, SS316L, SS310S, Incoloy, nickel-based alloy, or corrosion-resistant materials |
| Control System | PID, SCR/thyristor, PLC, explosion-proof control cabinet, and safety interlock optional |
| Safety Protection | Over-temperature, low-flow, pressure, leakage, grounding, and system interlock |
| Custom Design | Medium, power, pressure, temperature class, installation method, control logic, and hazardous-area requirement |
Engineering, Safety & Documentation
Each explosion-proof electric heater can be designed according to hazardous-area requirements, medium properties, temperature class, control method, and safety protection needs.
Hazardous-Area Review
Heating structure, terminal enclosure, control method, and safety protection can be reviewed according to hazardous-area application requirements.
Temperature Class Control
Heater surface temperature, element temperature, outlet temperature, and high-limit protection can be configured to support safe operation.
Explosion-Proof System Design
Explosion-proof heater body, terminal box, sensors, control cabinet, and interlock logic can be integrated when required.
Inspection & Documentation
Explosion-proof information, wiring diagrams, inspection records, and operation guidance can be provided according to project requirements.
Hazardous-Area Applications
Xiangyuan explosion-proof electric heaters can be configured for hazardous-area process environments where heating structure, terminal enclosure, temperature class, control method, and safety protection need to be reviewed according to project requirements.
Oil & Gas Facilities
Explosion-proof electric heater configurations for crude oil, heavy oil, process fluid heating, and hazardous-area equipment rooms.
Petrochemical Processing
Hazardous-area electric heaters for petrochemical process heating, gas preheating, liquid heating, and skid-mounted process packages.
Chemical Production Areas
Custom explosion-proof heaters for chemical liquids, process gases, solvent vapor environments, corrosive media, and temperature control.
Tank Farms
Electric heating configurations for tank heating, pipeline heating, oil preheating, chemical storage, and temperature maintenance.
Offshore & Marine Sites
Explosion-proof heater configurations for offshore platforms, marine hazardous areas, fuel oil systems, lube oil systems, and compact installation.
Hazardous-Area Manufacturing
Industrial electric heaters for manufacturing environments where terminal boxes, control logic, and interlock protection need project review.
VOC & Exhaust Gas Treatment
Hazardous-area air and gas heaters for VOC treatment, exhaust gas heating, flue gas heating, emission control, and condensation prevention.
Process Heating Packages
Heating packages can integrate heater body, terminal box, sensors, control cabinet, safety interlocks, and monitoring according to project requirements.


Explosion-Proof Electric Air Heater
Explosion-proof electric air heater designed for hazardous-area process air heating applications.
Description
Designed for hazardous-area air heating, process air heating, and industrial drying applications. The heater body, terminal box, heating elements, sensors, and control system can be configured according to airflow, temperature rise, and site requirements.
Applications
Oil and gas facilities, petrochemical plants, chemical production areas, hazardous ventilation systems, process air heating, drying systems, and industrial hot air applications.
Typical Design Options

Explosion-Proof Electric Gas Heater
Description
Designed for hazardous-area process gas heating where gas composition, pressure, flow rate, outlet temperature, and temperature class must be carefully controlled. Explosion-proof terminal boxes, instruments, and safety interlocks can be supplied when required.
Applications
Nitrogen heating, process gas preheating, petrochemical gas heating, exhaust gas heating, flue gas heating, and special industrial gas heating applications.
Typical Design Options


Explosion-Proof Electric Liquid Heater
Description
Designed for hazardous-area liquid heating, oil preheating, chemical process heating, and tank heating. Inline, flanged, immersion, tank-mounted, or skid-mounted explosion-proof designs can be customized according to the fluid and installation method.
Applications
Thermal oil, crude oil, heavy oil, water, chemical liquid, process fluid, storage tank heating, oil preheating, and chemical process heating.
Typical Design Options

Explosion-Proof Electric Duct Heater
Description
Designed for hazardous-area duct air heating and ventilation systems where airflow, installation direction, terminal enclosure, and over-temperature protection must be matched to the process environment.
Applications
Explosion-proof ventilation systems, duct air heating, process air preheating, industrial drying, VOC treatment support, and hazardous-area air handling units.
Typical Design Options

Explosion-Proof Electric Circulation Heater System
Explosion-proof circulation heating system for hazardous-area liquid and process fluid applications.
Description
Integrated explosion-proof electric circulation heater system with heater body, control cabinet, temperature monitoring, and safety protection for hazardous-area fluid heating applications.
Applications
Circulation heating loops, tank temperature maintenance, oil circulation systems, chemical process heating, water heating, and skid-mounted hazardous-area heating packages.
Typical Design Options

Explosion-Proof Electric Heating System
Description
Designed as a complete hazardous-area heating package with heater, control cabinet, instruments, monitoring, and safety interlock logic. The system can be engineered for air, gas, liquid, oil, pipeline, tank, or skid-mounted process heating applications.
Applications
Explosion-proof heaters, tank heaters, pipeline heaters, skid-mounted systems, process heating equipment, petrochemical units, and oil and gas facilities.
Typical Design Options
HAZARDOUS-AREA ELECTRIC HEATING · PROJECT INPUT
Start With the Hazardous-Area Conditions
Explosion-proof heater design must align the process duty with the site classification. Please include the hazardous-area data together with the normal thermal and mechanical conditions.
Process Conditions
- Heating medium and composition
- Flow rate, tank volume, or process capacity
- Temperature, pressure, and required heat duty
Area Classification
- Zone or Class / Division classification
- Gas group and required temperature class
- Required certification or project standard
Mechanical Design
- Installation method and connection size
- Wetted material and corrosion conditions
- Ambient temperature, IP rating, and site environment
Electrical & Protection
- Voltage, phase, and frequency
- Explosion-proof control cabinet and monitoring scope
- Interlocks, sensors, alarms, and emergency shutdown
