2 inch Proflex Coupling Connects Cast Iron to PVC, Steel, Extra Heavy Cast Iron

3000-22 Shielded Transition Coupling – 2" CI/PVC Connector for DWV Systems

The 3000-22 Shielded ProFlex Coupling is a 2-inch mechanical transition fitting designed to connect dissimilar piping materials—specifically cast iron (CI), PVC, or steel—in drain, waste, and vent (DWV) systems. It incorporates a stainless steel shield with torque bands to provide added structural reinforcement, ensuring alignment and maintaining joint integrity under load.

This coupling is listed under ASTM C1460 and CSA B602 standards and is approved for above- and below-grade non-pressurized DWV applications. The elastomeric sleeve ensures a leak-resistant seal, while the stainless shield minimizes shear and compensates for differences in pipe stiffness and wall thickness.

Key Technical Features

• ✅ 2" Nominal Size – Fits standard 2" cast iron, plastic (PVC, ABS), and steel DWV piping.
• ✅ Shielded Construction – Stainless steel banding with torque clamps enhances structural stability and resists deformation.
• ✅ Elastomeric Sleeve – Neoprene or EPDM rubber sleeve accommodates pipe surface irregularities for uniform sealing.
• ✅ Code-Compliant – Meets ASTM C1460 and CSA B602; listed by IAPMO and UPC for use in DWV systems.
• ✅ Transition Capability – Designed to accommodate dimensional differences between cast iron and PVC pipe OD.

Typical Applications

Used in both new construction and retrofitting applications where legacy piping systems (cast iron or galvanized) are being joined to newer materials (PVC or ABS). Suitable for in-wall, under-slab, and exposed horizontal runs in non-pressurized systems.

Installation Considerations

Installers must ensure that pipe ends are square-cut, clean, and properly aligned. Position the coupling so the sealing sleeve fully overlaps both pipe ends. Torque stainless bands to manufacturer specifications (typically 60 in-lbs). No primer, solvent cement, or thread sealant is required. Follow all local plumbing codes for mechanical joint assemblies.

Certifications and Compliance

This fitting is certified to meet ASTM and CSA standards for shielded transition couplings. Approved for use under Uniform Plumbing Code (UPC) and International Plumbing Code (IPC) requirements for DWV systems.