Oval Tube Finned Heat Exchanger (Radiator), Custom Made per Drawings

Oval tube finned heat exchanger (radiator) adopts oval flattened base tubes instead of conventional round tubes, combined with high‑frequency welded or pressed fins. This oval fin‑tube design reduces flue‑gas / air flow resistance, lowers dust accumulation tendency, delivers higher heat transfer efficiency and compact structure. We provide full custom service: manufacture oval tube finned heat exchangers strictly according to customer drawings, technical sheets, dimension samples or old‑part parameters. Widely used for drying kilns, waste‑heat recovery, air heating, ventilation heating, cooling and dehumidification across agriculture, food, timber, paper, chemical and HVAC industries.

Structure & Material Options

Oval Base Tube

Carbon steel oval tube Q235 / 20#

Stainless steel oval tube 304, 316L for high‑humidity, corrosive vapor

Custom oval dimension: major axis, minor axis, wall thickness per client drawing

Fins

Carbon steel, aluminum, stainless steel fins; high‑frequency welded / crimped on oval tube surface

Custom fin height, fin thickness, fin pitch according to working condition (anti‑clog large pitch for dusty environment)

Headers & Nozzles

Round or oval headers, flanged or threaded connections; nozzle position, size and orientation fully follow drawing requirements.

Frame & Support

Carbon steel painted / stainless steel modular frame; mounting holes, bracket positions strictly implemented as per customer technical drawing.

Drawing‑based custom service:

Accept CAD, PDF drawings, hand‑sketch, or reverse‑engineering from old unit. We follow your parameters: tube size, fin specs, overall dimension, connection size, working pressure, working temperature, medium type (steam, hot water, thermal oil, gas).

Working Principle

Hot or cold medium flows inside oval tubes. Heat transfers through oval tube wall to outer fins. Air or flue‑gas flows cross‑wise over fin surfaces to realize heating or cooling.

Oval tube shape brings streamlined flow field, less flow resistance, less ash and dust sticking compared with circular finned tubes.

Key Advantages of Oval Tube Finned Heat Exchanger

Lower flow resistance

Streamlined oval profile reduces air/flue‑gas resistance, cuts fan power consumption, suitable for large air‑volume systems.

Anti‑dust & anti‑blocking performance

Less dead‑zone for dust deposition, better self‑cleaning effect, ideal for drying, grain/timber/malt drying kilns with floating dust, fiber, sawdust.

Compact & high heat‑transfer performance

Oval tube arranges more heat‑exchange area within limited space, higher overall heat‑transfer coefficient than round tube under same conditions.

Strict drawing‑to‑product customization

1:1 manufacture per your drawings, reverse‑engineering for replacement of old existing radiators; no standard‑model limitation.

Wide material selection

Carbon steel for general purpose; stainless steel for high‑humidity, corrosive, food‑grade environments.

High pressure‑bearing capacity

Oval tubes manufactured and tested for specified design pressure, hydraulic test performed before delivery.

Application

Timber / grain / malt / fruit‑vegetable drying kiln air heater

Paper mill, coating line oven heating & cooling

Farm ventilation heating system

Industrial waste‑heat recovery, flue‑gas heat exchange

HVAC air handling unit, cooling & dehumidification

Retrofit & replacement of original oval tube radiators

Custom Workflow (Drawing‑based order)

Customer provide CAD/PDF drawings, dimension list or old‑sample photos

Our engineering review technical parameters: medium, pressure, temperature, material requirements

Confirm manufacturing details, quotation

Production: tube processing, fin welding, header welding, frame assembly

Hydraulic pressure test / air‑tightness inspection

Anti‑rust treatment, packing, delivery

Maintenance Tips

Periodically blow dust from fin surface with compressed‑air to keep heat‑exchange performance.

Check welding seams and flanges for leakage regularly.

Drain medium inside tubes during long‑time shutdown to avoid internal corrosion.

Conclusion

Our oval tube finned heat exchanger (radiator) features low resistance, anti‑dust performance. We specialize in custom manufacturing strictly per customer drawings, specs or old‑part reverse engineering. Suitable for new‑project build‑in and old‑equipment replacement for multiple industrial heating, cooling and waste‑heat recovery scenarios.