Plan 12 in Sealban

PI Plan 12 recirculates flow from a high‐pressure section of the pump, typically the discharge piping, through a flow control orifice to the seal. In order to remove particulate in the flush stream and prevent clogging, flow passes through a strainer placed prior to the flow control orifice. The addition of pressure gauges on either side of the strainer allows the strainer to be monitored for servicing.

This plan:

Prevents orifice clogging through the addition of a strainer

Removes heat and flushes particulate from the seal chamber

Ensures proper pressure in the seal chamber to prevent pumped fluid from vaporizing

Allows the seal chamber to be self-venting when used with horizontal pumps

Plan 12 is available as a kit of components ready for field assembly