MARKETS
Externally Pressurized Expansion Joint
Features
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Used for long axial movements
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Self Draining Convolutions
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Integral cover and liner
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Packless
Applications
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Typically used steam distribution systems and LNG applications
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They can be buried or above ground
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Piping must be properly anchored and guided. Intermediate anchors are required between xpress expansion joints.
Operating Range
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Full vacuum to 2000 psig depending on size
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Cryogenic to 1650°F+
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Sizes from 1” NPS to > 240” NPS
Materials
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3XX Series Stainless Steel
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Nickel Alloys
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Carbon Steel
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Titanium
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Zirconium
ADDITIONAL INFO
FIT
- Bellows may be attached or linked to piping flanges, pipe, or other typical industrial connections.
- End connections may conform to standards such as ASME B16.5, ASME B36.10, or customer designed.
- Fittings may be the same at each end or different.
FORM
- Single circular metal bellows, or 1 or more convolutions.
- System pressure is applied to only the outside surface of the bellows.
- Typical dimensions of 2” ANSINPS
to 100” ID. Overall length may vary, typically within the range of 26” to 120”. - Bellows may include reinforcement or controlling members.
- Convolutions are U shaped.
- Additional accessories maybe incorporated such as drains, anchor load bearing restraints.
FUNCTION
- Absorbs piping (thermal) movement, primarily axial but may include small lateral and/or angular movements.
- Movement amplitude varies, typically within the range of 3” to 16”.
- Movement frequency may be extreme low cycle (1 per year), or high cyclic (such as vibration at 60 Hz).
SIMILAR PRODUCTS
