1-1/2 inch Proflex Coupling Connects Cast Iron to PVC, Steel, Extra Heavy Cast Iron

1-1/2" Proflex Shielded Coupling – Transition Fitting for Cast Iron and PVC DWV Piping

The 1-1/2" Proflex Coupling is a shielded transition fitting used to join dissimilar pipe materials, including cast iron, PVC, and steel, in non-pressurized drain, waste, and vent (DWV) systems. Constructed with a stainless steel shield and molded neoprene sleeve, this coupling provides mechanical joint stability while maintaining flexibility for alignment and vibration absorption.

Designed to meet applicable plumbing codes, the coupling offers a reliable solution for horizontal and vertical DWV connections. It is particularly useful in retrofit scenarios where different piping materials must be securely joined while preserving system integrity.

Product Features

• ✅ Stainless Steel Shield – Minimizes pipe shear and provides resistance to deformation and shifting under load.
• ✅ Neoprene Gasket Sleeve – EPDM or neoprene rubber sleeve provides a watertight seal across varied pipe surfaces.
• ✅ Torque Bands – Stainless steel clamps provide uniform compression per ASTM C1460 requirements.
• ✅ Transition Capabilities – Connects 1-1/2" nominal cast iron to 1-1/2" nominal PVC, ABS, or steel piping.
• ✅ Code-Compliant Design – Listed to ASTM C1460 and IAPMO-certified for use in DWV applications.

Installation Guidance

Installers must ensure both pipe ends are cut square, deburred, and clean. Slide the coupling over the joint and tighten the stainless bands using a calibrated torque wrench to the manufacturer's specified inch-pound setting (typically 60 in-lbs). No solvent cement or thread sealant is required for installation.

Typical Applications

This coupling is used in residential, commercial, and industrial DWV systems to join different piping materials where solvent welding or threading is not feasible. Common in slab repairs, wall cavity retrofits, and replacement of failed no-hub joints.

Code Compliance Note

Approved for use in above- and below-grade DWV systems. Verify regional code requirements for shielded couplings in specific applications. Meets UPC and IPC standards for mechanical DWV connectors.