Page 403 - Mechanical Products Installation Handbook IH-1000M

PRESSURE & DESIGN DATA 395 Misalignment and Deflection
If it is desired to have both deflection and linear movement available, then the system should have sufficient flexible joints to accommodate the requirement.
Flexible couplings are also useful in laying out curved piping systems.
R=L
(2) (Sin—)
T O
L
O
L = (2) (R) (Sin—) 2
N=T
Flexible Couplings (Typical)
R = L =
Radius of curve
Pipe length
N = T =
Number of flexible couplings needed Total deflection, in degrees, required
2
= Deflection from centerline, in degrees, for each coupling (see table)
a. Refer to Technical Data Sheets G810, G820, and G830 for more information.
R