Flanged Radiators
- Designed for easy assembly and disassembly.
- Ideal for transformers requiring frequent maintenance or transport.
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
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