China Supplier Aluminum Foil Electrical Heater - Finned Tubular Heater – PAMAENS TECHNOLOGY

Specification

Item Name

Finned Tubular Heater

Item No.

PM-FTH

Voltage

6-600 V

Wattage

Customized

Max. wattage density

50w /sq cm

Tube diameter

3 mm to 30 mm (customized)

Fins diameter

15-45 mm

Fins thickness

2-6 mm

Shape

U shape, W shape, Coil shape, double W shape, straight, etc

Max. operating temp:

1000°C (depending on material)

Diameter tolerance

+/- 0.1mm

Length tolerance

+/- 3% (depending on different shapes)

Wattage tolerance

+/- 5%

Voltage tolerance

+/- 5%

Certificates

CE, RoHs

Packaging

Carton box / fumigation free wooden case

Material

Core

Cr20Ni80, high quality Swedish resistance wire is avalible

Insulation

High purity compacted magnesium Oxide

Sheath material

SS304 / SS316L / Incoloy 800 / Copper / SS201 with or w/o Teflon coating

Fins

SS304 / SS316L / Copper / SS201 / Iron

Accessories Information

Threads

Wire

High temperature resistance wire available

Description

Introductions of Finned Tubular Heater

In applications where Finned Tubular Electric Heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Finned tubular heaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams. Graph 1 compares watt density, outlet air temperature, and the speed of air flow for regular and finned tubular heaters respectively. Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F.
 
The physical characteristics of Finned Tubular Electric Heaters play a major role in the effectiveness of its heat transfer. The table below specifies the outside diameter of fins, their thickness, the spacing between consecutive fins, as well as the element sheath and fin material.

The feature of Finned Tubular Heater

1. Easy to install, control and maintain.

2. Wide applications ( any tanks, drums or vessels with liquid or gases)

3. Heating fast and efficiently

4. Health and Safety

5. Could be used in very high temperature, strong corrosive medium

The applications of Finned Tubular Heater

1. Duct Heater

2. Load Bank

3. Air condition systems

4. Ovens

5. Burn Ovens

6. Forced air duct heating

RFQ

1. Diameter of heating tube and diameter of the finnes

2. Length or width

3. Shapes or drawings

4. Voltage & wattage

5. Quantity

Reference information may help for your choice

Tab1 : list various sheath materials, maximum allowable temperatures and mediums within which they are recommended to operate.

Tab2 : list recommended maximum watt densities and medium for different materials.