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Introduction to Tubular Heaters

TECHNICAL INFORMATION

GENERAL INFORMATION

Akinsun�s electric line of tubular heaters is the most versatile of all heating elements. They can be used in straight or formatted configurations. Since most tubular are designed for specific applications, this portion of the catalog will serve as a guide for your particular design. Because of their flexibility in design they can be used for heating liquids, gas, radiant heaters, for casing into aluminum, bronze or iron.

CONSTRUCTION

Akinsun tubular heaters are made from the highest quality materials under carefully researched manufacturing methods. The nickel chromium resistances wire coil is precisely centered in the tube and packed with high purity magnesium oxide (Mgo). After the tube is filled with Mgo, it is compacted by rolling or swaging. This elongates the tube, thickens the wire and compresses the Mgo into a rock hard mass. This process permanently stabilizes the coil in the center of the tube where it will not shift during the forming process.

 

SHEATH MATERIAL

MAX. SHEATH TEMP.

MAX WATTS PER SQ. IN

RECOMMENDED APPLICATION

COPPER

350 F (165 C)

55

Water, non-corrosive liquids

STEEL

750 F (385 C)

22

Oil immersion, Cast-in

STAINLESS

1200 F(635 C)

30

Corrosive liquids, Food processing

INCOLOY

1600 F(850 C)

40

Corrosive liquids, Air, Clamp-on

PHYSICAL LIMITATIONS AND ELECTRICAL DATA

SHEATH DIA .005

.260

.315

.375

.430

SHEATH MINIMUM

11�"

11�"

11�"

11�"

LENGTH MAXIMUM

84"

200"

230"

255"

MAX. AMPERAGE

15

30

30

40

MAX. VOLTAGE

250

300

480

550

THREAD SIZE

6-32

8-32

10-32

10-32

STANDARD LENGTH TOLERANCES

SHEATH LENGTH

SHEATH LGH. TOLERANCE

HEATED LGH. TOLERANCE

MINIMUM COLD ENDS

Up to 20"

�1/16"

�2%

1"

20 to 100"

�1/18"

�2%

1�"

100 to 200"

�1/4"

�2%

2�"

 

Technical Information

Features

AKINSUN tubular heaters are made of highest quality material selection and construction techniques. This enables a maximum allowable heat output without sacrificing life.

 

Versatility

  • Made to .260, .315, .375 and .430 diameters
  • Several standard up to 3-5 bend configurations
  • 4 Sheath materials to choose from

 

Economical

Tubular heaters emit infrared energy. The energy that is most easily absorbed by a mass and converted to heat. The energy goes directly into your product. It does not have to heat a lot of air first. AKINSUN heaters provide the most economical solution to hundreds of heating applications.

 

Performance Capabilities

  • Sheath temperatures to 1600� F (850�C)
  • Watt densities to 40/Sq." in air and when clamped down
  • Voltages, 120, 208, 240, 480 and 550V
  • Resistant to shock, vibration and corrosion

 


� Copyright 1998-2002, Akinsun Heat Co., Inc.
All Rights Reserved

1531 Burgundy Parkway Streamwood, IL. 60107
Phone: 630-289-9393 Fax: 630-289-9506


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