Section 6
MAINTENANCE
29
2. Flexible joints are not intended to support end
loads caused by internal pressure or other forces
causing pipe separation.
Figure 6-14 Flexmaster Coupling
TABLE 1 - INSERTION DEPTH
Pipe “D” “D”
Size Min. Max.
2 1/2” 1.68” 2.38”
(63.5mm) (42.7mm) 62.5mm)
TABLE 2 - ASSEMBLY TORQUE (I)
Size Standard
2 1/2” 180 to 200 in./lbs.
(63.5mm) (20.3 to 22.6Nm)
(I) Tighten as shown in chart or a minimum of 1/16” (1.5mm) clearance between coupling lugs,
whichever comes first.
TABLE 3 - GASKET RING SELECTION
Size Part Number Part Number
(Buna N) (24KT)
2 1/2” 040649 250007-564
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