Product Overview
Maintain Peak Performance with Advanced Transformer Radiators
Transformer radiators are vital components designed to dissipate heat generated within the transformer oil. They maintain the desired operating temperature and enhance the performance and lifespan of the transformer. Our radiators are suitable for both power transformers and distribution transformers and are available in standard pressed steel per client specifications.
Equipment Rentals
Get access to a wide range of high-quality equipment without the heavy investment.
Types of Radiators
1. Flanged Radiators
- Designed for easy assembly and disassembly.
- Ideal for transformers requiring frequent maintenance or transport.
2. Pressed Steel Radiators
- Widely used for distribution and power transformers.
- Manufactured from high-quality cold-rolled steel.
- Available with flanges for detachable or welded mounting.
- Suitable for natural oil circulation (ONAN) or forced oil/air circulation (ONAF).
3. Welded Radiators
- Permanently fixed type for compact transformers.
- High mechanical strength and oil-tight design.
4. Custom Radiators
- Designed to meet specific dimensional and thermal requirements.
- Options for special coatings, materials, and connections.
5. Goose Neck radiators with embedded sections
6. Swan Neck radiators (bend pipe)
7. Swan Neck radiators (bend pipe)
8. Hot Dip Galvanized Radiators
9. Off-Centered Radiators
10. Stainless Steel Radiators
Technical Specifications
| Parameter | Specification Range |
|---|---|
| Fin Width | 520 mm |
| Fin Thickness | 1.0 mm & 1.2 mm |
| Section Length | 500 mm – 4000 mm |
| Material Cold Rolled | |
| Steel (CRCA) | IS 513 |
| Surface Finish | Epoxy / PU/ Enamel |
| Header Pipe | Mild Steel ERW Pipe or Fabricated header. |
| Cooling Type | ONAN / ONAF / OFAF |
| Standard | IEEMA 9,1990 / DIN 42258 |
| Flute Design | 24 Flute Profile (6 channels x 4 flutes) |
Design Features
- Efficient thermal dissipation with optimized fin geometry.
- Compatible with both vertical and inclined mounting.
- High-quality welding ensures leak-proof operation.
- Designed and tested in accordance with IEEMA 9, 1990/ DIN 42559 standards.
- 24 Flute profile (6 Channels x 4 Flutes)
- Optional radiator valve, Lifting Lug, Tie Lug,Thermometer pocket,air release plug, and oil drain plug available.
Testing and Quality Assurance
- Efficient thermal dissipation with optimized fin geometry.
- Each radiator undergoes rigorous testing before dispatch:
- Pressure test at 2.5 kg/cm²
- Leak test under vacuum conditions
- Paint thickness and adhesion test
- Dimensional and visual inspection
- Optional performance test for heat dissipation
Coating and Surface Treatment
Degreasing → Phosphating → Primer → Epoxy /PU painting
Standard color: Transformer Grey (RAL 7032 / RAL 7035)
Customized color or Hot Dip Galvanized finish available upon request.
Accessories & Options
- Radiator valves (flanged or threaded)
- Air release plugs
- Lifting lugs
- Mounting brackets / channels
- Oil drain plugs
- Cooling fans (for ONAF operation)
- Temperature sensors and control fittings
Applications
- Power transformers up to 500 MVA
- Distribution transformers (33 kV and below)
- Furnace transformers
- Wind & solar energy transformer cooling
- Substation and industrial transformers
Compliance & Standards
Our radiators comply with the following international and national standards:
- IS 11371:1985 – Specification for Radiators for Oil-Immersed Transformers
- IEC 60076-2 – Temperature Rise of Transformers
- ISO 9001:2015 – Quality Management System Certified
Typical Radiator Diagram
(You can include a schematic showing inlet, outlet, mounting brackets, and fin arrangement.) I can generate a clean technical diagram or schematic image for our catalogue if you’d like — showing the connection points, oil flow, and fin layout.
Advantages of FTPL Radiators
- Superior heat transfer efficiency
- Long life & minimal maintenance