Seal Less
what is the abbriviations of API 685 seal-less ?
API. Issued by American Petroleum Institute, API-610 is for centrifugal pumps. While ANSI mainly addresses pumps interchangeability, the API addresses the “robustness” of the design, to ensure trouble free operation for the demanding and tough environment of the oil refineries. It specifies whether an impeller should or should not have wear rings, determines allowable nozzle loads, imposes rotating parts balance methods and criteria, specifies piping plans for specific service, addresses lubrication, bearings and baseplates, as well as materials of construction. These standards are available for purchase from the API in Washington, DC and the number is 202-682-8000.
API-685 is for the seal-less centrifugal pumps, for petroleum, heavy-duty chemical, and gas industry services. It is still a relatively unknown publication, with few seal-less pumps within the refinery applications, due to high temperature service, not easily handled by the magnets of the seal-less pumps.
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