Plan 01 - Single seals - internal flush
Description: Plan 01 is an internal recirculation from the pump discharge area of the pump into the seal chamber, similar to a Plan 11 but with no exposed piping.
Advantages: No product contamination and no external piping. Advantageous on highly viscous fluids at lower temperatures to minimize the risk of freezing that can occur with exposed piping arrangements.
General: This flush plan should only be used for clean products as dirty products can clog the internal line. Not recom- mended on vertical pumps