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Fluid Inlet Strainer Screen
313539F 37
Fluid Inlet Strainer Screen
The inlet strainers filter out particles that can plug the
pump inlet check valves. Inspect the screens daily as
part of the startup routine, and clean as required.
Use clean chemicals and follow proper storage, transfer,
and operating procedures, to minimize contamination of
the A-side screen.
NOTE:
Clean the A-side screen only during daily startup. This
minimizes moisture contamination by immediately flush-
ing out any isocyanate residue at the start of dispensing
operations.
1. Close the fluid inlet valve at the pump inlet and shut
off the appropriate feed pump. This prevents mate-
rial from being pumped while cleaning the screen.
2. Place a container under the strainer manifold (59d)
to catch fluid. Remove the strainer plug (59j).
3. Remove the screen (59g) from the strainer manifold.
Thoroughly flush the screen with compatible solvent
and shake it dry. Inspect the screen. If more than
25% of the mesh is blocked, replace the screen.
Inspect the gasket (59h) and replace as required.
4. Ensure the pipe plug (59k) is screwed into the
strainer plug (59j). Install the strainer plug with the
screen (59g) and gasket (59h) in place and tighten.
Do not overtighten. Let the gasket make the seal.
5. Open the fluid inlet valve, ensure that there are no
leaks, and wipe the equipment clean. Proceed with
operation.
* See Reactor Repair-Parts manual 313540 for fluid filter
screen replacements.
FIG. 11: Fluid Inlet Strainer
59g*
59h
59j
59k
ti9886a
59d