1-1/2 inch Proflex Coupling Connects Copper x Copper

Fernco 1-1/2 inch Proflex Coupling – Copper-to-Copper Transition for DWV Systems

The Fernco 1-1/2 inch Proflex Coupling is a flexible, shielded transition fitting engineered to connect 1-1/2 inch nominal copper piping in non-pressurized DWV (drain, waste, and vent) systems. Manufactured with a stainless steel banded shield and a flexible elastomeric sleeve, this coupling provides a mechanical seal that accommodates vibration, thermal expansion, and pipe misalignment while maintaining a leak-resistant connection.

Designed for use with copper tube size (CTS) piping, Proflex couplings allow for quick and code-compliant transitions in retrofit or repair scenarios without the need for soldering. The coupling is intended for use in gravity flow systems and is listed to multiple national standards for sanitary drainage applications.

Performance Features

• ✅ Flexible PVC Sleeve – Conforms to copper OD tolerances while maintaining a watertight seal under movement and minor deflection.
• ✅ 304 Stainless Steel Shield – Four-band clamp system distributes sealing force evenly and reinforces structural integrity at the joint.
• ✅ Copper-to-Copper Compatibility – Sized specifically for transitions between copper tube ends in 1-1/2 inch CTS piping systems.
• ✅ Non-Conductive Isolation – Provides dielectric separation, reducing the potential for galvanic corrosion at dissimilar metal joints.
• ✅ Code-Conforming – Listed under IAPMO/UPC and compliant with ASTM C1460 and CSA B602 for sanitary waste systems.

Technical Specifications

• Nominal Size: 1-1/2 inch Copper x Copper
• Material: PVC elastomer with Type 304 stainless steel bands
• Design Standard: ASTM C1460 / C1173, CSA B602
• Application: Above-ground and underground DWV piping transitions

Installation Guidelines

Install by aligning pipe ends within the coupling body and torquing stainless steel bands to manufacturer specifications (typically 60 in-lbs). Ensure pipe ends are clean and free from sharp edges or debris to maximize sleeve engagement. Not intended for pressurized systems. Verify approval with local code authority when used in concealed or fire-rated assemblies.

Common Applications

Used in residential, commercial, and institutional buildings for copper-to-copper transitions in sanitary waste piping, cleanouts, and remodel tie-ins. Particularly useful in renovations or repairs where rigid soldered joints are not feasible due to space constraints or system status.

Material and Regulatory Notes

Proflex couplings are third-party listed and tested for compliance with building codes in the U.S. and Canada. The shielded configuration controls shear forces and meets performance standards for couplings buried in soil or concealed in wall cavities under mechanical code requirements.

The Fernco 1-1/2 inch Proflex Coupling is a jobsite-ready transition fitting that offers reliable sealing performance and flexibility for connecting copper lines in DWV systems. It simplifies retrofits and improves installation efficiency while maintaining compliance with recognized mechanical and plumbing standards.