Westlake Pipe Fittings dwv-d100-040 Dwv Coupling 4 in Sch 40

Product Description

The WESTLAKE PIPE FITTINGS dwv-d100-040 is a Schedule 40 PVC DWV coupling designed to join two 4-inch drain, waste, and vent pipes in a straight run. The hub-by-hub end configuration accepts standard 4-inch pipe on both sides, creating a solvent-welded joint suited for residential and commercial drainage systems. PVC construction resists corrosion and chemical degradation common in drain line service. Licensed plumbers and pipe fitters install this coupling as part of new DWV rough-in work or repair sections in existing drain lines.

This coupling is used in 4-inch DWV piping systems where two pipe sections must be joined inline. Typical applications include drain line extensions, pipe repairs, and new construction rough-in for residential and light commercial plumbing. The Schedule 40 wall thickness meets standard DWV system requirements for gravity-flow drain and vent applications. It is not rated for pressure service.

Key Features

• Hub x hub ends accept standard 4-inch PVC pipe for solvent-weld installation
• Schedule 40 wall thickness meets DWV system requirements
• PVC material resists corrosion, scale, and common drain line chemicals
• Rated for drain, waste, and vent (DWV) gravity-flow applications
• Straight coupling geometry for inline pipe joining without offset

Compatibility

Designed as an OEM-style replacement and standard fitting for 4-inch Schedule 40 PVC DWV piping systems in residential and commercial plumbing installations.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off water supply and drain affected lines before cutting into any existing pipe. Clean and dry both pipe ends and hub sockets before applying PVC primer and solvent cement per manufacturer instructions. Allow solvent weld joints to cure fully before restoring flow.

Technical Specifications

• Nominal Pipe Size: 4 inches
• Schedule: 40/STD
• End Type: Hub x Hub
• Material: PVC
• Application: DWV (Drain, Waste, Vent)
• UNSPSC Code: 40172608

Standard Information

• Brand: WESTLAKE PIPE FITTINGS
• Manufacturer Part Number: dwv-d100-040