CONQUEST® Flangeless Piping
Torque Considerations for the CONQUEST® coupling
Torsional loading is a consideration in the design of any piping
system, but is particularly important with CONQUEST flangeless piping.
Reason: The inner plastic liner of adjacent pipe sections are
butt-welded together and, therefore, cannot act independently of
each other. If torsional loading on the joint exceeds the mechanical
coupling's ability to resist turning, the plastic liner may twist
and break at the connection.
Torsional loading can occur in many situations, particularly where
there are direction changes, during the transport of a flangeless
assembly, or while lifting a flangeless assembly into a pipe truss.
Table 2 lists the torque values that are not to be exceeded for the
CONQUEST Connection after the mechanical coupling is installed.
Maximum Allowable Torque Values
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