UNIVERSAL TIED BELLOWS LOOP

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OVERVIEW

The Flexicraft Universal Tied Loop is an engineered flexible piping solution built for large-diameter lines (16" to 36"+) and higher pressure systems up to 300 psi. Available in standard U-Type and compact V-Type configurations, these loops eliminate the severe anchor load challenges.

In large lines, internal pressure creates massive hydrostatic thrust loads that can overwhelm building structural steel. Universal Tied ML Loops resolve this by using dual universal tied bellows assemblies. Integrated heavy-duty tie rods fully contain internal pressure thrust within the loop itself, ensuring building anchors experience only the minimal deflection spring forces of the bellows.

Custom engineered to absorb thermal and seismic movement in all three directions, each assembly features a field-split design with factory-welded companion flanges for easy freight transport and fast jobsite rigging. Loops can be installed horizontally (most common) or vertically to suit tight space constraints.

FEATURES

  • Zero Anchor Pressure Thrust: Heavy-duty structural tie rods contain internal line pressure forces, relieving structural anchors of massive loads.

  • Large Diameter & High Pressure: Engineered for 16" to 36"+ pipe sizes with pressure ratings up to 300 psi.

  • Movement in All Three Directions: Absorbs simultaneous axial, lateral, and angular thermal or seismic movements.

  • Field-Split Modular Design: Ships in two pre-fitted sections with welded companion mating flanges for standard trucking and simplified rigging.

  • Flexible Orientation: Operates effectively installed horizontally or hanging vertically.

 

Universal Tied Flexible Pipe Loop U

APPLICATIONS & SIZING

  • Primary Applications: Mission-critical data center cooling networks (CHW/condenser mains), central utility plants, high-rise risers, and industrial piping where anchoring is structurally limited.

  • Custom Sizing Inputs: Engineered to your exact project parameters, including pipe size (16"–36"+), operating pressure/temperature, end connections, and required movements in all three planes.

 

RELATED ZERO-THRUST DESIGNS

For straight piping runs where chase or overhead space is too restricted for an offset loop, see our In-Line Pressure Balanced Expansion Joints. They deliver the same zero pressure thrust protection and full 3-axis multi-directional movement capabilities within a compact, straight-line profile that requires zero side clearance.