Expansion Bellows

  • Pressure Balance Stainless Steel Expansion Bellows

    Pressure Balance Stainless Steel Expansion Bellows

    1. Self-balancing mechanism automatically cancels internal blind plate pressure forces.
    2. Accommodates axial and lateral movements while neutralizing pressure thrust.
    3. Extreme condition capability: up to 150 Bar pressure and 1200°C temperature.
    4. Premium materials: SS304, SS316, Inconel 600, and Hastelloy X options.
    5. Protects sensitive equipment like turbines, pumps, and compressors from nozzle loads.
    6. Eliminates need for massive main anchors, reducing civil engineering costs.
    7. Available in standard sizes DN400-DN1600, larger sizes up to DN3000 available.
    8. Fully compliant with EJMA 10th edition and GB/T 12777 standards.

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  • stainless steel expansion bellow

    Stainless Steel Expansion Bellows (Hinged Type)

    1. Single-plane hinged expansion bellows for controlled angular deflection.
    2. Robust hinge mechanism constrains pressure thrust, reducing anchor loads.
    3. Premium SS304, SS316L, or SS321 stainless steel for corrosion resistance.
    4. Operating temperature range from cryogenic -196°C to high-temp +800°C.
    5. Pressure ratings from PN1.0 to PN6.4 MPa for diverse applications.
    6. Angular movement capacity ±5° to ±15°, customizable per requirements.
    7. Rigid frame prevents torsional deformation, extending service life.
    8. Compliant with EJMA, GB/T 12777, and ASME VIII-1 design standards.

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  • Stainless Steel Expansion Bellows (Normal Type)

    Stainless Steel Expansion Bellows (Normal Type)

    1. Multi-ply austenitic stainless steel construction (SS304, SS316L, SS321, Inconel 625).
    2. Standard axial thermal expansion management for metallic piping networks.
    3. Operating temperature range from cryogenic -196°C to high-temp 700°C.
    4. Optional internal flow sleeve to minimize friction and erosion.
    5. Dual connection versatility: weld-end or flanged configurations.
    6. Wide size range DN15-DN4000 (1/2″ – 160″) for diverse applications.
    7. Robust fatigue life: 1000-5000 cycles under extreme thermal cycling.
    8. Compliant with GB, ANSI, DIN, JIS, EN 1092-1 global standards.

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  • Stainless Steel Expansion Bellows (Universal Gimbal Type)

    Stainless Steel Expansion Bellows (Universal Gimbal Type)

    1. Robust universal gimbal system with pinned hinge assemblies for multi-directional movement
    2. Handles angular rotation simultaneously in any plane within 360-degree range
    3. Integrated pressure thrust restraint eliminates need for heavy-duty main anchors
    4. Premium stainless steel materials: SS304, SS316L, SS321, and Inconel options
    5. Multi-ply bellows construction for extended fatigue life and enhanced safety
    6. Seal-free design requires no periodic maintenance, ideal for inaccessible locations
    7. Available in flanged or butt-welded connections, DN50-DN3000
    8. Perfect for refineries, high-rise utilities, and complex industrial piping systems

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