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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 diametersSeveral standard up to 3-5 bend configurations4 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 downVoltages, 120, 208, 240, 480 and 550V Resistant to shock, vibration and corrosion |