Fernco 1001-44 Flexible Pvc Coupling 4 in X 4 in Clay Dwv

Product Description

The FERNCO 1001-44 is a flexible PVC coupling designed for Drain, Waste, and Vent (DWV) piping systems. It connects 4-inch clay pipe to 4-inch clay pipe, providing a reliable, watertight joint without the need for solvent welding or hot work. The coupling body is manufactured from PVC and is unaffected by soil conditions, making it suitable for underground and below-grade installations. Two 300-series stainless-steel clamps are included and seat into band slots on the coupling sleeve, allowing the installer to achieve a secure, evenly distributed clamp load across the joint.

This coupling is used in residential and light commercial DWV applications where clay pipe connections are required. Typical scenarios include sewer lateral repairs, clay-to-clay pipe reconnection after excavation, and connecting replacement sections of clay pipe in aging drain systems. Licensed plumbers and underground utility contractors are the primary installers. The design accommodates minor misalignment and pipe-end irregularities common in older clay pipe installations.

Key Features

• Connects 4-inch clay pipe to 4-inch clay pipe in DWV systems
• Flexible PVC sleeve accommodates minor misalignment and pipe-end irregularities
• Unaffected by soil conditions, suitable for underground and below-grade use
• Includes 300-series stainless-steel clamps for corrosion resistance
• Band slots distribute clamp load evenly across the sleeve
• No solvent welding or open flame required for installation

Compatibility

Designed as an OEM-style flexible coupling for 4-inch clay-to-clay pipe connections in residential and commercial DWV drain and sewer systems.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local amendments. Before installation, shut off any flow to the line and ensure pipe ends are clean, square, and free of burrs or sharp edges that could damage the sleeve. Slide the coupling over one pipe end, insert the mating pipe, center the sleeve over the joint, and torque the stainless-steel clamps evenly using a nut driver or torque-limiting screwdriver per the manufacturer instructions included with the part. Do not over-torque the clamps, as this can distort the PVC sleeve and compromise the seal.

Technical Specifications

• Pipe Size: 4 inches x 4 inches
• Pipe Material Compatibility: Clay to Clay
• Application: Drain, Waste and Vent (DWV)
• Sleeve Material: PVC
• Clamp Material: 300-Series Stainless Steel
• Case Pack Quantity: 20 units
• Overall Case Dimensions: 17.75 inches x 13.50 inches x 16.75 inches

Standard Information

• Brand: FERNCO
• Manufacturer Part Number: 1001-44