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Basket Strainers
The correct size of Basket Strainer is determined by its job
function, not by the size of the pipeline.
Pre Installation Checklist:
1.
free of defects. The pipeline should also be checked for
proper alignment. Strainers should never be utilized to
realign an existing piping system.
2.
type as the basket strainer being installed. Raised face
3. Ensure that the pipeline setup allows a horizontal
installation of the basket strainer.
4. If pipeline strain is a concern when installing larger
should be used to provide additional support. Larger
reducing strain on the pipeline.
5. If the basket strainer is to be located on the discharge
side of a pump, then a safety release valve must be
installed between the basket strainer and the pump.
Installation Procedure:
1. To provide for easier maintenance, the basket strainer
should be located where the drain plug can be removed
and where there is ample space above the basket
strainer for screen removal.
2. Before placing the basket strainer into place, support
the existing pipeline with pipe supports near the inlet
and outlet connections of the basket strainer.
3. Place the basket strainer into the pipeline ensuring
large or heavy strainers, lift the basket strainer into
place using slings positioned underneath the inlet and
outlet connections.
Figure 36 - Installed Basket Strainer with Bolted Cover
Figure 37: Bolting Sequence Pattern
Note: Excessive bolt torque may damage anges. Please
refer to established ange bolt torques for guidelines.
Operation
Once proper installation has been successfully completed,
start the system gradually, at start up as well as after shut
down. This eliminates sudden shock to the strainer and
other equipment in the line. This is extremely important for
steam service.
Start-Up Procedure
1. Remove air from the pipeline by opening the vent near
the basket strainer. Note: With piping systems that
safe area, away from the operator. Operators should
gloves, vests etc.) when venting or servicing
is performed.
2. Start the piping system by opening the outlet valve
open the inlet valve nearest the basket strainer’s
It is important to start the system gradually to avoid
displacing or damaging the basket strainer.
3. Continue to open the inlet valve until the desired service
Basket
Strainer
Cover
Basket
Strainer
Screen
Pipeline Flow
4.
tighten. Flange bolts should then be tightened, using
a star or crisscross pattern to evenly load the bolts, in
accordance with established piping standards. This is
illustrated in Figure 37.
Start the piping system by opening the outlet valve nearest
inlet valve nearest the basket strainer’s inlet, approximately
system gradually to avoid displacing or damaging the basket
strainer. Continue to open the inlet valve until the desired
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