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INSTALLATION CONSIDERATIONS
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MATING DUCT FLANGES
Mating duct flanges affect expansion joint design. Senior Flexonics Pathway Frame
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Systems SR2700, SR2800 and SR2900 are designed to completely eliminate mating
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flanges on the duct work. Other frame systems are designed to be welded to
existing flanges, thereby decreasing installation time and corrosion problems
associated with bolted designs. The design of duct flanges should be coordinated
with the expansion joint manufacturer. FC
INSTALLATION MISALIGNMENT
Duct systems, which require fabric expansion joints, are often extremely large and
therefore subject to substantial dimensional errors. It is possible that misalignment
could exceed the expected thermal movement. A convenient solution to this
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problem is to design the expansion joint frame to absorb the duct misalignment.
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Note that the flexible element is installed in its neutral position, and retains full
movement capability. Field drilled holes are the best way to assure proper fit up. Field Assembly Diagram
ADJACENT DUCTING EQUIPMENT
The expansion joint flange and liner designs can be affected by location of adjacent equipment such as fans, dampers,
etc. Expansion joints must be designed so that they do not interfere with the operation of adjacent equipment during
maximum movement conditions.
PAINTING & FINISHING
A fabric expansion joint assembly, complete with attachment flanges, may require final painting after installation.
The metal components, therefore, should be prime coated only by the manufacturer for protection during shipment,
storage, and erection.
EXPANSION JOINT ASSEMBLY
Senior Flexonics Pathway normally recommends the purchase of complete assemblies, ready for final assembly into the
duct. The fabric element is attached to its flanges at the factory and its fit and assembly is the total responsibility of the
expansion joint manufacturer.
Large expansion joints, requiring shipment in sections, must be factory pre-assembled, matched-marked, and packaged
for easy assembly after storage. Complete instructions are included with each expansion joint and experienced filed
service supervisors or installation crews are available if desired.
ON-SITE INSTALLATION SERVICE
Senior Flexonics Pathway can provide on-site installation service,
mobilize, and be at your job site within 24 hours. Using our trained
factory personnel, we can assist you with installation supervision or
complete the turnkey installation.
Senior Flexonics Pathway performs work in both union and
non-union facilities.
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Installation Service
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Field Supervision
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Ducting System Inspection
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Field Training
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Plant Surveys
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