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 start‐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.