Wellhead heat retention
Supplies local heat where the wellhead installation needs protection from ambient cooling.
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China's Leading
Heating Manufacturer
Explosion-Proof Wellhead Heater
Wellhead heating and freeze protection
Designed specifically for oilfield wellheads, the Explosion-Proof Wellhead Heater supplies local heat to support wellhead insulation and freeze protection in cold weather. Its sealed die-cast aluminum housing and compact mounting assembly suit exposed wellhead installations where oil, water and wind-blown sand are everyday operating conditions.
Manufactured by XGTHERMAL in China, the range provides up to 500 W of localized heating. Under the specified installation and operating conditions, the heater reaches a stable thermal balance without an electronic temperature controller. Silicone-rubber cabling resists heat, oil and aging, while supplied mounting components simplify installation and removal at the wellhead.
Wellhead Freeze Protection
Up to 500 W for project-selected wellhead protection duties
Sealed Aluminum Housing
Die-cast construction with silicone-rubber supply cable
Heat-Balance Operation
Stable thermal balance under specified conditions, without electronic temperature control
Typical applications
Local protection for exposed wellhead installations.
This product supplies local maintenance heat around the wellhead. Its suitability depends on the exposed equipment, installation arrangement and heat loss; it is not intended to provide bulk heating of flowing crude oil or natural gas.
Winter freeze protection
Can support a site freeze-protection plan when heat output is matched to the actual losses.
Insulated wellhead arrangements
Reviewed together with the surrounding insulation and the permitted heater installation conditions.
Outdoor oilfield service
Sealed construction is intended for sites exposed to oil, water and sand within the unit’s rated limits.
Existing wellhead protection upgrades
Mounting components allow the local heater arrangement to be reviewed for installation and future servicing.
Heating challenges
Match local heat input to site heat loss.
A small local heater must be matched to the heat that escapes from the protected installation. Wind, insulation condition and changes in ambient temperature affect that balance. Increasing installed watts without reviewing the mounting arrangement and permitted surface temperature is not a substitute for selection.
Low ambient temperature, wind and exposed metal increase the protection duty.
Rating, mounting and insulation are reviewed against the local heat-retention objective.
Too little useful heat can leave the installation unprotected; an unsuitable installation can also exceed temperature limits.
- Use the design minimum ambient temperature and realistic wind exposure for selection.
- Check surrounding insulation against the heater’s permitted mounting and surface-temperature conditions.
- Keep access for wellhead operation, inspection, cable protection and heater removal.
Engineering design
Built for installation and servicing at the wellhead.
The sealed die-cast aluminum housing encloses the heating assembly. External silicone-rubber cabling and installation components support oilfield installation and removal for servicing. The mounting location, cable route and surrounding insulation are reviewed together so the heater can deliver useful local heat without obstructing normal wellhead access.
- Die-cast aluminum enclosure with a sealed construction
- Silicone-rubber external cable with heat, oil and aging resistance
- Supplied mounting components for straightforward wellhead installation and removal
- Cable route and service access checked against the wellhead layout
Operation and protection
Stable wellhead heating through thermal balance.
As the heater warms up, heat input and heat loss reach a dynamic balance, stabilizing its temperature under the specified conditions. This structural approach provides steady local heating without relying on electronic temperature-control components. The selected rating, mounting and surrounding insulation must keep operating temperatures within the unit’s permitted limits.
Independent of electronic temperature control
Normal thermal-balance operation does not depend on an electronic temperature controller, avoiding reliance on that component and its failure modes.
Matched to the wellhead environment
Heater selection accounts for ambient temperature, mounting and insulation to establish suitable thermal-balance conditions at the wellhead.
Electrical installation protection
Supply protection, grounding, cable routing and termination must follow the selected unit’s instructions and site requirements.
Hazardous-area suitability and inspection
Confirm gas group, temperature class, permitted ambient range and enclosure marking for the installation. Sealed construction does not replace inspection of cable condition, terminations and mounting integrity.
Engineering data
Specifications
These are the published product-range parameters. Final rating, temperature class and installation limits must match the selected unit and its applicable documentation.
| Specification Parameters | Specification Details |
|---|---|
| Rated Voltage | AC 380 V, 50 Hz (customizable) |
| Rated Power | Up to 500 W |
| Protection Class | IP65 |
| Explosion-Proof Grade | Ex db IIB; temperature class by selected model |
| Standards and Certification Area | Reference / Route | How XGTHERMAL Supports It |
|---|---|---|
| Explosion-proof design basis | GB/T 3836 / IEC 60079 | Applicable requirements for the enclosure, electrical assembly, cable entries and hazardous-area marking. |
| Product specification | Q/SXGDL01-2022, BDR series | The published product reference covers the 500 W wellhead heater family; request the selected model’s datasheet and documents. |
| Destination-market Ex assessment | ATEX / IECEx / EAC | Certification routes can be reviewed for the final model and destination. Availability is subject to assessment, not assumed for every unit. |
| Ingress protection | IEC 60529 / IP65 | Confirm enclosure rating and installation conditions, including cable entry integrity. IP65 is not a submersion rating. |
| Inspection and handover | Model-specific records and instructions | Agree the applicable inspection records, Ex documents and installation instructions before supply. |
Certification availability depends on final equipment configuration, destination market requirements, hazardous-area classification and third-party conformity assessment. Standards listed here describe available engineering and documentation support, not a blanket certificate for every configuration.
| Name | Origin/Brand | Remarks |
|---|---|---|
| Sealed Aluminum Housing | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Die-cast enclosure for the wellhead heating assembly |
| Heating Assembly | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Rating matched to the selected local protection duty |
| Supply Cable | Supplied with the assembly | Silicone-rubber cable; length and termination requirements confirmed with the order |
| Mounting Components | Supplied for the selected installation | Installation and removal arrangement matched to the equipment layout |
Operator references
One of China’s Top-Tier Electric Heating Suppliers for Oil & Gas Projects
XGTHERMAL has supplied electric heating systems for projects connected with CNPC / PetroChina, PipeChina and Sinopec. In China’s petroleum and petrochemical sectors, qualified heater suppliers must pass technical review, explosion-proof compliance checks, safety documentation review and field performance verification.
This project record places XGTHERMAL among the specialist electric heating manufacturers trusted for demanding oil and gas applications. Redacted cooperation records, contract references or project supporting materials can be provided for qualified procurement discussions.
Custom engineering
Custom engineering around your operating conditions.
Share a photograph or drawing of the installation, the minimum ambient temperature and the required protection objective. XGTHERMAL can review the heater rating, mounting arrangement and electrical connection for your site.
- Protection duty Protected equipment, heat-retention objective and minimum ambient temperature.
- Mechanical interface Mounting dimensions, surrounding insulation and maintenance clearance.
- Site safety Hazardous-area classification, IP protection, grounding and interlock requirements.
- Electrical interface Supply voltage, cable route and any additional monitoring requirements.
