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Grooved Flexible Coupling – Smart, Adaptable, and Leak-Proof Pipe Joint Solution

Product Overview:
The Grooved Flexible Coupling is an advanced mechanical connector designed to join pipes while allowing for controlled flexibility. It’s widely used in HVAC, plumbing, fire protection, and industrial systems where vibration absorption, thermal expansion, and misalignment are common.

Key Features:

  • Sizes: 1"–12" (DN25–DN300)

  • Working Pressure: Up to 300 PSI

  • Certifications: FM Approved, UL Certified

  • Surface Coating: Red painted, galvanized, epoxy blue, grey

  • Gasket Options: EPDM, Nitrile (NBR), Silicone – for various fluids and temperatures

Why Choose Grooved Flexible Couplings:

  • Accommodates axial movement, angular deflection, and minor misalignment

  • Absorbs vibration and noise, improving comfort and system lifespan

  • Simplifies installation, reducing labor time and cost

  • Ideal for replacing complex expansion joints or bellows

  • Enhances sealing performance under pressure thanks to the gasket’s self-energizing design

Working Principle:
The coupling uses a slightly pre-compressed rubber gasket placed between grooved pipe ends. The two clamp housings are assembled around the gasket and fastened with bolts. Upon pressurization, the gasket expands, pressing its lips firmly against the groove surface—ensuring a leak-proof, flexible seal that moves with the pipe system, not against it.


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