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who can tell me more about silicon carbide
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The primary job of a seal is to keep contaminates out of the motor assembly. On a sewage pump this is accomplished by using a face seal. A face seal consists of a rotating material and a stationary material. The standard seal faces in the Zoeller line are a stationary ceramic face and a rotating carbon face. Seal options include a stationary silicon carbide face and a rotating carbon face or a stationary carbide face and a rotation silicon carbide face. Silicon carbide faces should be used in any environment where a ceramic/carbon combination would not be suitable (i.e. any high abrasive, high abuse or continuous run environment).
