API Plans

Plan 31

Description: Plan 31 is recirculation

from pump discharge through a

CYCLONE SEPARATOR, sending clean

flush into the seal chamber and heavy

particles back to pump suction.

Objective: Dissipate seal generated heat

and vent the seal chamber at startā€up.

Remove solids from the seal flush and

seal chamber.

Advantages: Raises the pressure in the

stuffing box while preventing erosion to

the seal from abrasive processes. Works

best for solids with a specific gravity

twice the process fluid.