Westlake Pipe Fittings dwv-d304-040 Dwv Pvc Long Sweep

Product Description

The WESTLAKE PIPE FITTINGS dwv-d304-040 is a 4-inch DWV PVC long sweep 1/4 bend designed for drain, waste, and vent piping systems. Built from schedule-grade PVC, this fitting features two hub-style ends that accept standard 4-inch DWV pipe for solvent-weld connections. The long sweep radius reduces flow restriction compared to a standard 1/4 bend, making it a preferred choice in horizontal drain runs. Licensed plumbers and pipefitters install this fitting in residential and light commercial DWV systems where smooth directional changes are required to maintain proper drainage flow.

This fitting is suited for gravity-flow drain, waste, and vent applications in residential and commercial construction. It is used wherever a 90-degree directional change is needed in a 4-inch horizontal or vertical drain line. The hub ends accept solvent cement for a watertight, permanent joint. Typical install locations include main drain stack transitions, under-slab horizontal runs, and above-grade drain lines routed through floor or wall assemblies.

Key Features

• Long sweep geometry reduces turbulence and promotes steady flow in horizontal drain runs
• Two hub-style ends sized for 4-inch DWV pipe, joined with standard PVC solvent cement
• PVC construction resists corrosion and common household drain chemicals
• 90-degree directional change suits a wide range of residential and commercial DWV routing scenarios
• Complies with DWV fitting geometry standards for use in gravity-flow waste systems

Compatibility

Designed as an OEM-style DWV replacement and new-construction fitting for 4-inch PVC drain, waste, and vent piping systems using hub-end solvent-weld connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Cut pipe square, deburr all edges, and dry-fit the assembly before applying primer and solvent cement to both the pipe end and hub socket. Allow adequate cure time per the cement manufacturer instructions before introducing flow. Do not apply heat to accelerate curing or use cement rated for pressure pipe in DWV-only applications without verifying code compliance.

Technical Specifications

• Pipe Size: 4 inches
• End Type: Hub x Hub
• Bend Angle: 90 degrees (1/4 Bend)
• Sweep Type: Long Sweep
• Material: PVC
• Application: DWV (Drain, Waste, Vent)

Standard Information

• Brand: WESTLAKE PIPE FITTINGS
• Manufacturer Part Number: dwv-d304-040