Flanged Double Ball Rubber Bellows DN200

Product Overview
The DN200 Flange-Connected Double Sphere Flexible Rubber Expansion Joint, commonly referred to as a double sphere rubber joint or compensator, is an advanced pipeline flexible connector. Designed with two spherical rubber body sections, it provides significantly greater axial, lateral, and angular displacement compensation capabilities compared to single sphere models. The integral flanges at both ends allow for quick and secure bolted connection to pipeline systems, making it an ideal solution for absorbing vibration, noise, stress, and misalignment in piping networks.

Key Features & Advantage
1.  Superior Flexibility & Movement Compensation:
    *   Multi-Directional Compensation: Excellently absorbs axial compression/extension, lateral shear, and angular deflection.
    *   High Displacement Capacity: The dual-sphere design offers a larger offset range, effectively accommodating thermal expansion, settlement, and installation inaccuracies.

2.  Excellent Vibration & Noise Dampening:
    *   The natural elasticity of the rubber body effectively isolates and reduces vibrations transmitted from pumps, valves, and equipment.
    *   Significantly lowers fluid flow noise and structural-borne sound, contributing to a quieter operational environment.

3.  Durable Construction & Materials:
    *   Reinforced Body: High-strength synthetic rubber (e.g., EPDM, NBR, Neoprene for different media) reinforced with multiple layers of nylon cord or steel wire for pressure resistance.
    *   Robust Flanges: Manufactured from carbon steel (Q235) with anti-rust treatment, or optional stainless steel (304/316), ensuring a long service life and secure connection.
    *   Pressure Ring (Optional): Equipped with limit rods or pressure rings to prevent over-extension and provide additional safety under high pressure or vacuum conditions.

4.  Wide Application Compatibility:
    *   Media: Suitable for water, sewage, air, compressed air, mild chemicals, and other fluids compatible with the selected rubber material.
    *   Temperature Range: Typically from -15°C to +115°C (varies with rubber type; EPDM can handle up to 130°C).
    *   Pressure Rating: Standard working pressure is usually 1.0MPa, 1.6MPa, or 2.5MPa (PN10/16/25).

5.  Easy Installation & Maintenance:
    *   Flange connection allows for straightforward installation without complex welding or threading.
    *   Requires minimal maintenance, reducing system downtime and operational costs.