Fernco fernco-1002-64 Flexible Pipe Coupling 4x6 Clay to Pvc

Product Description

The FERNCO fernco-1002-64 is a flexible pipe coupling designed to connect 4-inch clay pipe to 6-inch PVC pipe with a leak-proof seal. This coupling uses a flexible elastomeric sleeve to accommodate minor pipe misalignment and dimensional variation between dissimilar pipe materials. It is a go-to solution for drain, waste, and vent (DWV) repairs and transitions where rigid fittings cannot accommodate material or size differences. Licensed plumbers and drain contractors install this coupling in both residential and light commercial applications.

This coupling is suited for below-grade and above-grade plumbing transitions where an older clay sewer line meets a PVC replacement or extension. It performs reliably in trench repair scenarios, lateral replacements, and spot repairs without requiring concrete cutting or pipe grinding. The elastomeric sleeve compresses against both pipe surfaces when the stainless steel clamps are tightened, creating a watertight mechanical joint.

Key Features

• Connects 4-inch clay pipe to 6-inch PVC in a single fitting
• Flexible elastomeric sleeve seals on dissimilar pipe materials
• Compatible with plastic, cast iron, clay, concrete, steel, copper, asbestos cement, and ductile iron pipe materials
• Clearly marked with part number, size, and compatible pipe materials for jobsite identification
• Accommodates minor pipe misalignment and out-of-round conditions

Compatibility

Designed for use as a transition coupling between 4-inch clay pipe and 6-inch PVC pipe in DWV systems. The flexible sleeve design is appropriate for connections involving plastic, cast iron, clay, concrete, steel, copper, asbestos cement, and ductile iron pipe materials.

Installation Notes

Installation is performed by a licensed plumber following applicable IPC or local plumbing code requirements. Shut off flow to the line and allow the pipe to drain completely before beginning work. Clean and deburr pipe ends before inserting into the coupling sleeve, then tighten stainless steel clamps evenly to the manufacturer torque specification printed on the product. Do not over-tighten the clamps, as this can distort the sleeve and compromise the seal.

Technical Specifications

• Pipe Size (End 1): 4 inches (clay)
• Pipe Size (End 2): 6 inches (PVC)
• Connection Type: Flexible elastomeric coupling with stainless steel clamps
• Compatible Pipe Materials: Plastic, cast iron, clay, concrete, steel, copper, asbestos cement, ductile iron

Standard Information

• Brand: FERNCO
• Manufacturer Part Number: fernco-1002-64