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■ W-Type
This type of elements are self-bonded silicon carbide formed by re-crystallization of silicon carbide at high temperatures .It consists of three high – purity silicon carbide elements connected at are end by a silicon carbide crossbar .
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■ U-Type
This element consists of two silicon carbide legs with equal diameter each leg is divided into two parts, hot zone and cold zone with a joint. Resistance of both is equal to ensure a uniform performance. Both shanks are joined with crossbar made of low resistance.
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Similarly to single spiral type, this type of element is a tubular element with a spiral – grooved heating section, and as a major characteristic, both electrical connections are found at one end only. Installation of this element is very easy.
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Single spiral type element is manufactured with a spiral – grooved heating section which is made of homogeneous, high density silicon carbide crystals .It is more resistant to heat and corrosion then conventional products.
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Rod type of heating elements is used in applications ranging in temperature from 600˚C up to 1600˚C in both air and controlled atmosphere. This type of element may be mounted either vertically or horizontally. No special supports are required
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