Plan 11 - Single seals - By-pass from discharge
Description: Plan 11 is the most common flush plan in use today. This plan takes fluid from the pump discharge (or from an intermediate stage) through an orifice(s) and directs it to the seal chamber to provide cooling and lubrication to the seal faces.
Advantages: No product contamination and piping is simple.
General: If the seal is setup with a distributed or extended flush, the effectiveness of the system will be improved.