Centrifugal pump assembly and method for retrofitting centrifugal pumps

摘要: An air bleed tube (261) is attached to a single-stage centrifugal pump (258), which has an impeller (266) and liquid suction (268) whose inlet at center of the (266). The with its exposed eye from (258) thereby reduce likelihood that will lose prime. A light-touch check valve (260) outlet allows be discharged same time prevents being sucked by venturi vacuum pressure in back into (258).