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[
EJ GUIDE]
Post Installation Inspection Prior to System Pressure Test
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A careful inspection
of the entire piping system shall be made with particular
emphasis on the following.
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Are the
anchors, guides and supports installed in accordance
with the system drawings?
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Is the
proper expansion joint in the proper location?
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Are the
expansion joint flow direction and positioning
correct?
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Have
all the expansion joint shipping devices been removed?
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Are all
guides, pipe supports and the expansion joints free to
permit pipe movement?
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If the
system has been designed for a gas, and is to be
tested with water, have provisions been made for
proper support of the additional dead weight load on
the piping and expansion joint? Some water may remain
in the bellows convolutions after the test. If this is
detrimental to the bellows or system operation, means
shall be provided to remove such water.
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Has any
expansion joint been damaged during handling and
installation?
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Is any
expansion joint misaligned? This can be determined by
measuring the expansion joints' overall length,
inspection of the convolution geometry, and checking
clearances at critical points on the expansion joint
and at other points in the system.
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Are the
bellows and other movable portions of expansion joint
free of foreign material?
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EJ Guide
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= Featured Product =
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+ View larger images
Go to featured
product archives
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U.S. Bellows, Inc. Designed and Fabricated 50
Universal Expansion Joints for an Air Force Base in New Mexico
(Ref#91376-A1, EA) 11/14/2007
U.S. Bellows, Inc. fabricated 50 expansion joints from 304L
stainless steel. The expansion joints were 6" and 8" sizes. The 6"
expansion joints are 24" face to face and the 8" expansion joints
are 26" face to face. All of the expansion joints are fabricated
with liners that are also made with 304L stainless steel. The design
temperature was 200°F and the design pressure was 200 PSIG. The
expansion joints were dye-penetrant tested and hydro tested at 300
PSIG. U.S. Bellows, Inc. provides 100% customer satisfaction in
terms of quality and delivery.
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