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

The following parameters are for reference only. Final heater design can be customized according to heating medium, hazardous-area requirement, temperature class, operating pressure, installation method, and control system.
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

Medium: Air, process air, ventilation air, and industrial hot air
Application: Hazardous-area air heating, process air heating, and industrial drying
Structure: Explosion-proof heater body, terminal box, heating elements, sensors, and control system optional
Protection: Over-temperature protection, airflow interlock, grounding protection, and safety interlock
Customization: Airflow rate, temperature rise, power, voltage, installation method, and hazardous-area requirement

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

Medium: Nitrogen, process gas, flue gas, exhaust gas, and special industrial gas
Application: Hazardous-area gas preheating, process gas heating, and petrochemical gas heating
Structure: Pressure vessel body, explosion-proof terminal box, heating elements, insulation, and instruments
Control: Outlet temperature control, pressure monitoring, over-temperature protection, and low-flow protection
Customization: Gas composition, flow rate, pressure, outlet temperature, material, and explosion-proof requirement

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

Medium: Thermal oil, crude oil, heavy oil, water, chemical liquid, and process fluid
Application: Hazardous-area liquid heating, oil preheating, chemical process heating, and tank heating
Structure: Inline, flanged, immersion, tank-mounted, or skid-mounted explosion-proof design
Protection: Over-temperature protection, low-level protection, low-flow protection, pressure monitoring, and leakage protection
Customization: Fluid type, viscosity, flow rate, temperature rise, pressure, material, and control method

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

Medium: Air, ventilation air, process air, and selected gas streams
Application: Duct heating, process air heating, ventilation heating, and temperature maintenance in hazardous areas
Structure: Duct heater frame, heating elements, explosion-proof terminal box, sensors, and control system
Control: Airflow interlock, outlet temperature control, high-limit protection, and system interlock optional
Customization: Duct size, airflow rate, temperature rise, power, voltage, material, and installation direction

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

Medium: Thermal oil, crude oil, heavy oil, water, chemical liquid, and process fluid
System Type: Inline circulation heater, skid-mounted heater, tank circulation heater, or process heating package
Components: Electric heater, pump, valves, instruments, explosion-proof terminal box, and control cabinet optional
Protection: Low-flow protection, over-temperature protection, pressure monitoring, leakage protection, and interlock control
Customization: Flow rate, tank volume, immersion length, flange size, heating power, and explosion-proof level

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

Function: Power control, temperature control, monitoring, and safety interlock for explosion-proof heating systems
Control Options: PID, SCR/thyristor, PLC, HMI, staged power control, and remote monitoring optional
Application: Explosion-proof heaters, tank heaters, pipeline heaters, skid-mounted systems, and process heating equipment
Protection: Over-temperature alarm, interlock control, grounding protection, leakage protection, and fault indication
Customization: Voltage, power capacity, control logic, instruments, enclosure type, and hazardous-area requirement

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.

01

Process Conditions

  • Heating medium and composition
  • Flow rate, tank volume, or process capacity
  • Temperature, pressure, and required heat duty
02

Area Classification

  • Zone or Class / Division classification
  • Gas group and required temperature class
  • Required certification or project standard
03

Mechanical Design

  • Installation method and connection size
  • Wetted material and corrosion conditions
  • Ambient temperature, IP rating, and site environment
04

Electrical & Protection

  • Voltage, phase, and frequency
  • Explosion-proof control cabinet and monitoring scope
  • Interlocks, sensors, alarms, and emergency shutdown