| Tubular elements | |
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Introduction |
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Technical description |
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Enquire for a quotation or place an order |
Tubular elements |
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Technical
description :
A resistance wire is drowned into packed magnesia (MgO) and then heavily compressed using cold lamination. The highly resistant sheath protects the heating element from mechanical and chemical agressions. Connecting terminals are welded to resistance wire at both ends of element. An insulating ceramic bead protects the electrical circuit and improves electrical properties of heating element according to standards.
BENDING
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Bending options available are infinite. We advise you to contact our R&D department when defining product specifications in order to choose the most economical technical solution.
SHEATH
MATERIALS:
| Ø of sheath | |||||
| 6.5 | 8 | 10 | 13 | ||
| Aisi 309 | X | X | X | X | Heat-resistant stainless steel. Very good resistance to corrosion in air up to 900°C (1652°F) |
| Aisi 316L | X | X | X | X | Austenitic stainless steel. Very good resistance to intergranular corrosion in water. |
| Aisi 321 | X | X | X | X | Basic austenitic stainless steel. Sheath temperature should not exceed 650°C (1202°F). |
| Incoloy® 800 | X | X | X | X | Heat-resistant alloy resistant to temperatures up to 900°C (1652°C). Good resistance to corrosion in liquids except when in contact with chloride ions. |
| Incoloy® 825 | X | Resistant to temperatures up to 900°C (1652°C). Good resistance to corrosion in reducing acids, sea and swimming pool waters. | |||
| Copper | X | Good resistance in water. Can be nickel-plated for better resistance to scaling. | |||
CONNECTIONS :
Life span of heating element also depends on adequate connections. Temperature, ambient atmosphere, material splashes, movements and handlings have to be taken into account when defining specifications of heating element. Temperature on connections should not exceed 80°C (176°F). Our R&D department can help you to choose connection type required.
ND : Non available
| Connection type | Material | E size depending on tube diameter | |||||||
| 6,4 | 6,5 | 8 | 8,5 | 10 | 13 | 14 |
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| Height of steatite bead « H » ± 0.2mm | Steel | 3,9/5 | 4,8 | 6 | 5,7/6 | 8 | 6 | ||
| Ø 2.5mm terminal pin | 19 | 12 | 19 | 19 | |||||
| Ø 3,5mm terminal pin | 13 | 14 | 16 (NC>400) | ||||||
| Ø 4,5mm terminal pin | 16 (NC>400) | ||||||||
| M4 threaded terminal | Steel | 19 | 19 |
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| Screw lug plate w/clamp | Stainless Steel | 24 | 25 | 26 | 28 |
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| Straight 6.35 lug plate | Nickel -plated steel | 23 | 21 | 22 | 23 | 23 | 25 | 23 |
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| 90° bent 6.35 lug plate | 15 | 10 | 11 | 15 | 15/12 | 14 |
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| Double straight 6.35 lug | 23 | 21 | 22 | 23 | 23 | 25 |
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| Double 90° bent 6.35 lug | 23 | 14 | 15 | 23 | 16/23 | 18 |
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| HO7 RNF 1.5mm2 cable (11A max.) with shrink | Copper core | 20 | 21 | 22 | 25 |
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| 1.5mm2 11A hypalon neoprene | |||||||||
| Hypalon moulded (-55°C +120°C) | ND | 21 | ND | ND | |||||
| E.P.D.M. rubber (max. temp. 60° on connections) | 55 | 75 | 80 | ||||||
| 1.5mm2 11A glass fibre insulated cable | Copper core | 20 | 21 | 22 | 25 |
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| 2,5mm˛ 15A glass fibre insulated cable | 20 | 21 | 22 | 25 | |||||
| 1mm˛ 6A glass fibre insulated cable | Nickel core | 20 | 21 | 22 | 25 | ||||
| 2,5mm˛ 7,5A glass fibre insulated cable | 20 | 21 | 22 | 25 | |||||
| 2,5mm˛ 11A glass fibre insulated cable | 20 | 21 | 22 | 25 | |||||
| 2,5mm˛ 15A glass fibre insulated cable | 20 | 21 | 22 | 25 | |||||
| 4mm˛ 20A glass fibre insulated cable | 20 | 21 | 22 | 25 | |||||
| M4 end screw terminal | Nickel -plated steel | ND | 20 | 21 | 25 |
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| M4 threaded terminal | 24 | 24 | 23 | 19 | 24 | ND |
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| M5 threaded terminal | ND | 26 | 27 | ND | |||||
| M6 threaded terminal | ND | 27 | 28 | 30 | 25 |
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| Ø5 pin terminal | ND | 30 | 31 | ND |
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| Ø6 pin terminal | ND | 24 | 25 | ND |
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| Flattened terminal with M6 bolt | ND | 30 | 31 | 33 |
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| Flattened terminal with M5 clamp | ND | 30 | 31 | 33 | |||||
ELECTRICAL VALUES:
All power ratings and voltages are available provided specific watt densities are compatible with graph shown below and provided ohmic value per meter of length of heating element is within limits shown in below table or is validated by our technical department.
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PROTECTION AGAINST ELECTRICAL SHOCK AND HUMIDITY  |
Our heating elements can be fitted with aluminium or polycarbonate enclosures and thermoplastic or rubber moulded terminal covers. |