2-1/2" Grooved Flexible Coupling – Ductile Iron, UL/FM Approved

🔩 2-1/2" Grooved Flexible Coupling – UL/FM Approved for Fire Protection & Mechanical Piping

This 2-1/2 inch Grooved Flexible Coupling is engineered to provide a strong, leak-resistant connection in piping systems for fire protection, HVAC, and mechanical construction. Built from high-strength ductile iron and fitted with an EPDM gasket, it allows for controlled movement, absorbs vibration, and compensates for pipe misalignment — all while maintaining a secure seal under pressure.

Ideal for both new installs and retrofits, this coupling ensures easy, reliable connections with fewer components and quicker labor time. Fully UL Listed and FM Approved, it’s built for demanding applications and trusted by professionals nationwide.

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⚙️ Key Features

• Size: 2-1/2" nominal pipe size (NPS)
• Flexible design accommodates vibration, expansion, and contraction
• Material: Ductile iron housing with corrosion-resistant finish
• Gasket: Pre-lubricated EPDM for water-based systems
• Approvals: UL Listed, FM Approved, ANSI/AWWA C606 compliant
• Bolts: Heavy-duty steel track bolts for secure installation

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📐 Specifications

• Pipe OD Compatibility: 2.875" (Standard for 2-1/2" Schedule 40 steel pipe)
• Working Pressure: Up to 500 PSI (varies by application)
• Temperature Range: -30°F to 230°F (EPDM gasket)
• Coating: Painted or galvanized finish for corrosion protection
• Installation Torque: Typically 40–50 ft-lbs

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🧱 Why Ductile Iron?

Ductile iron is the industry standard for grooved fittings because of its superior strength and reliability:

• Strength: Supports high-pressure systems and heavy-duty use
• Flexibility: Helps absorb vibration, pipe movement, and thermal shifts
• Durability: More crack-resistant than cast iron, with a longer lifespan
• Corrosion Protection: Factory-coated to withstand tough jobsite conditions

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💡 Applications

• Commercial fire sprinkler systems
• Mechanical and HVAC piping
• Industrial process lines
• Chilled and condenser water systems

Quick to install. Built to last. Certified for performance.

❓ Frequently Asked Questions

1) What size pipe does this coupling fit?
It fits standard 2-1/2" Schedule 40 steel pipe with a 2.875" outside diameter.

2) Can this be used in fire suppression systems?
Yes — it is both UL Listed and FM Approved for fire protection piping applications.

3) Does it come with bolts and a gasket?
Yes, it includes the ductile iron housing, EPDM gasket, and bolts — ready for installation.

4) Can it be reused?
While the coupling housing is reusable, it is recommended to inspect and potentially replace the gasket before reuse.