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Grooved Couplings

Grooved Pipe Joining  Technology

How does it work? The groove is made by cold forming or machining a groove into the end of a pipe.

A gasket encompassed by the coupling housing is wrapped around the two grooved pipe ends, and the key sections of the coupling housing engage the grooves. The bolts and nuts are tightened with a socket wrench or impact wrench.

Types of grooved couplings 

  • Flexible coupling – allows for controlled linear and angular movement, which accommodates pipeline deflection as well as thermal expansion and contraction.
  • Rigid coupling – does not allow for movement, similar to a flanged or welded joint.

FLEXIBILITY Accommodates for predictable, controlled thermal piping movement.

NOISE AND VIBRATION ATTENUATION Reduces the transmission of noise and vibration throughout a piping system.

SEISMIC STRESS ABSORPTION Features significant pressure restraint and end load capacity, capable of withstanding piping movement generated from seismic forces.

SYSTEM MAINTENANCE AND EXPANSION Offers a union at every joint, providing easy access for maintenance and system expansions.

ALIGNMENNT EASE The grooved coupling can be oriented in any direction, easing concerns when installed in tight spaces.