1 inch Flexible Banded Pipe Coupling Connects Cast Iron PVC Copper Steel or Lead Pipe

1 inch Fernco Flexible Coupling – Engineered for Multi-Material Pipe Transitions

The 1 inch Fernco Flexible Coupling is a professional-grade solution for joining dissimilar pipe materials in low-pressure applications. Constructed with a flexible elastomeric sleeve and stainless steel clamps, this coupling provides a secure and watertight connection between pipes of the same nominal size, including cast iron, plastic, copper, steel, and lead.

Designed for adaptability in both new installations and retrofits, the coupling allows for slight pipe misalignment and is ideal for areas where rigid fittings are impractical. It meets industry performance standards and is certified for use in non-pressurized drainage, waste, and vent systems.

Product Features

• ✅ Flexible PVC Body Provides movement absorption and compensates for thermal expansion and contraction
• ✅ Stainless Steel Bands 300-series clamps ensure strong mechanical grip and corrosion resistance
• ✅ Code-Compliant Meets ASTM C1173, CSA B602, and other applicable mechanical code standards
• ✅ Multi-Material Compatibility Connects same-diameter pipe types including cast iron, PVC, copper, steel, and lead
• ✅ Fast Installation Requires only a torque wrench or nut driver to achieve proper compression seal

Technical Specifications

• Nominal Size: 1 inch
• Connection Type: Mechanical – clamp-secured flexible coupling
• Sleeve Material: Neoprene or PVC (depending on model)
• Clamp Material: 300-series stainless steel
• Certifications: ASTM C1173, CSA B602, UPC listed

Installation Guidelines

Before installation, ensure mating pipe surfaces are clean and free of debris. Position the coupling evenly across the joint and tighten both stainless steel clamps to the manufacturer’s specified torque value, typically 60 in-lbs. Coupling should not be used in pressurized applications unless approved by code and coupling specifications.

Typical Applications

• Residential and commercial DWV (Drain, Waste, Vent) systems
• Underground drainage and utility pipe transitions
• Non-pressurized sewer lateral repairs and retrofits
• Bridging incompatible pipe materials in remodels or emergency repairs

Did You Know?

Flexible couplings with stainless band reinforcements are often specified in seismic regions to absorb movement and maintain joint integrity under structural stress.

The 1 inch Fernco Flexible Coupling delivers code-compliant performance for joining dissimilar piping in tight or irregular conditions. Its ease of use, material versatility, and mechanical reliability make it a staple in the field for professional-grade plumbing transitions.