Page 16 - Basic Principles Of Grooved Mechanical Joints
P. 16
Basic Principles Of Grooved Mechanical Joints
FLEXIBLE
VS. RIGID
FLEXIBLE STYLE COUPLING RIGID STYLE COUPLING
The flat bolt pad design on a flexible coupling The angled bolt pad design on a rigid style coupling
produces a fixed key diameter, that allows for controlled provides positive clamping of the pipe which resists
linear and angular movement. Controlled pipe end torsional and flexural loads, as well as provides a
movement can accommodate pipeline deflection, joint that mirrors the same supporting requirements
as well as thermal expansion and contraction. of a welded joint per ASME B-31.1, 31.3, and 31.9.
Contraction
Expansion Deflection
12 VU-GUIDE-9017-E-ENG-US 9590 REV C
