Metallic Expansion Compensators


Metallic Expansion Compensators are designed to compensate for thermal growth, equipment movement, vibration or pressure pulsation within a piping system whilst containing pressure and the medium running through it.

Metallic Expansion Compensators are designed to accommodate movement in the three axis:

Axial Movement

Change in dimensional length of the compensator from its free length in a direction parallel to its longitudinal axis.

Lateral Movement

Displacement of one end of the compensator to the other, in a direction perpendicular to the longitudinal axis.

Angular Movement

Rotational displacement of the longitudinal axis of the compensator toward a point of rotation.

Metallic Expansion Joint Advantages:

Little space required for installation.

Absorption of movements in multiple directions due to their inherent flexibility.

They require no maintenance.

They reduce load and temperature loss to a minimum.

Materials Of Construction:

Metallic Expansion Joints are available in a variety of materials depending upon the specific application and associated operating conditions. Consideration must be given to:

  • Temperature resistance
  • Corrosion resistance
  • Mechanical characteristics
  • Resistance to fatigue
  • Flexibility required

Both Circular and Rectangular geometries are available in the following materials choices:

Stainless Steel grades including:

  • 304 Stainless Steel
  • 304L
  • 316
  • 316L
  • 321

Inconel and Hastelloy versions are also available.