6 SERVICE, DISMANTLING, ASSEMBLY SEPARATOR MANUAL
84 578701-02
6.4.4 Inspection for erosion
Erosion may occur when particles
suspended in the process liquid slide along
or strike against a surface.
1 Inspect the bowl and inlet/outlet parts for
erosion damages.
2 Replace parts if erosion is suspected.
i o
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The underside of the distributor in the vicinity of the
distribution holes and wings
The sealing edge of the
discharge slide.
Pillars between the
sludge ports in the
bowl wall
Paring disc and paring tube
Lock ring
Surfaces particularly subjected to erosion are:
The sealing edge of the discharge
slide for the seal ring in the bowl
hood
Erosion is characterised by:
1 Burnished traces in the
material.
2 Dents and pits having a
granular and shiny surface.
Bowl body and holder.
Holder and operating slide.
N
O
T
E
Always contact your Alfa Laval representative if you
suspect that the depth of the damage exceeds 0,2
mm for bowl body and bowl hood (0,5 for other
parts). Do not continue to use the separator until it
has been inspected and cleared for operation by
Alfa Laval.
W
A
R
N
I
N
G
!
Disintegration hazard
Erosion damage weakens parts by reducing the
thickness of the material.
Pay special attention to the pillars between the
sludge ports in the bowl wall.
Replace parts if erosion is suspected of affecting
strength or function.
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