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Bellows

Exhaust bellows are designed to limit the motion passed along to high-cost emmisions systems by absorbing displacements and vibrations and accommodating thermal expansion. All Tru-Flex flexible metal exhaust products are compliant with US EPA and European EEA Standards.

Applications

On- and off-highway commercial vehicle exhaust systems and use post-treatment system for:

    • Buses
    • Trucks
    • Tractors
    • Military
    • Construction
    • Forestry
    • Marine
    • Power generation

Standard Bellows

Tru-Flex’s standard bellows offer excellent thermal expansion and vibration/motion control while meeting industry required leak specifications. They also deliver extremely long fatigue life if no torsional motion is present.

Features
        • 2-ply .008″ (.2mm) corrugated body
        • Internal polylock liner (optional)
        • External braid (optional)
        • External mesh (optional)
        • Vibration damping mesh (optional)
Available Sizes
        • Inside diameter: 1”–6” (25.4mm–152.4mm)
Material Specifications
        • Type 321 stainless steel (1.4541) — bellows
        • Type 304 stainless steel (1.4301) or 904L — liner
        • Other per customer specification

 

Non-Torsional Severe Duty Bellows

Tru-Flex’s Non-Torsional Severe Duty Bellows offers excellent durability. It reduces static loss and has excellent thermal insulating properties. The robust design withstands severe displacements and includes a braided exterior that protects the bellows from external damage.

Features
      • 2-ply .010″ (.25mm) corrugated body
      • Internal polylock liner
      • External braid
      • Vibration damping mesh (optional)
Available Sizes
      • Inside diameter: 3”–6”
Material Specifications
      • Type 321 stainless steel (1.4541) — bellows
      • Type 304 stainless steel (1.4301) or 904L — liner
      • Type 304 stainless steel (1.4301) — braid

Braided Bellows

The addition of braid to our standard bellows provides all the features of standard bellows plus enhanced external protection, prevents hose elongation under pressure, and damps vibration. Tru-Flex’s wire braid is manufactured from bright, high-quality annealed wire in a wide range of alloys and designs. Wire braid offers excellent coverage and minimizes spring-back during bellows fabrication.

Available Sizes
        • Inside diameter: 1”–6” (25.4mm–152.4mm)
Material Specifications
      • Type 321 stainless steel (1.4541)
      • Other per customer specification

Tru-Flex, LLC
2391 S. St. Rd. 263 / P.O. Box 247
West Lebanon, Indiana 47991
U.S.A.


1-800-255-6291 or (765) 893-4403
info@tru-flex.com