FlexiHeat XL Resistance Heating Blanket System
The FlexiHeat XL Resistance Heating Blanket System is a robust, flexible, and highly reliable solution for preheating pipe welds prior to and during the welding process. Utilizing durable heating pads or flexible blankets containing resistance wire elements, it provides conductive heat directly to the pipe surface. This system is renowned for its versatility, ability to conform to complex geometries (like heavy wall pipe intersections), and proven performance in demanding field conditions for pipelines of all diameters.
- Proven Reliability: Simple, robust resistance heating technology with a long track record in pipeline construction
- Superior Conformability: Flexible ceramic fiber or metal-mesh blankets can be tightly secured around pipes, fittings, valves, and complex weld joints
- Excellent Heat Retention: Blankets often include integrated insulation, improving thermal efficiency and protecting against wind and weather
- Modular & Scalable: Heating blankets can be connected in parallel to cover large areas or multiple zones, controlled by a single or multi-zone power unit
- Cost-Effective Solution: Lower initial capital cost compared to some advanced systems, with durable blankets offering long service life
- Comprehensive Kits: Available in complete kits including blankets, power/control units, thermocouples, and heat retention covers
| Parameter | Specification |
|---|---|
| Heating Technology | Electric Resistance Heating (Mica, Ceramic Fiber, or Metal Sheathed Elements) |
| Power Supply | 110V, 220V, 480V AC input. Common units: 25 kVA, 50 kVA, 100 kVA |
| Heating Blanket Temperature | Up to 760°C (1400°F) for standard units; higher temperatures available |
| Pipe Coverage | Standard blankets available for common pipe sizes; custom shapes for special applications |
| Control System | Solid-state or SCR-based controllers with manual or automatic temperature control (PID). Multi-zone control capability |
| Duty Cycle | Designed for 100% continuous duty cycle |
| Thermal Insulation | Optional ceramic fiber heat retention covers to improve efficiency |
Provides stable, controllable heat for sustained preheating periods required for thick-wall pipeline welding. Ensures code-compliant preheat and interpass temperatures (as per API 1104, ASME Section IX). High heating capacity suitable for challenging materials and high wall thicknesses. Durable construction withstands rough site handling.
- Preheat and interpass heating for mainline, tie-in, and repair welds on cross-country pipelines
- Heating for welding on pipeline fittings, elbows, reducers, and valves
- Applications requiring precise heat control on heavy-wall pipe (e.g., pump station piping, compressor station piping)
- Ideal for maintenance, repair, and overhaul (MRO) operations on existing pipelines
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