Westlake Pipe Fittings dwv-d400-040 Dwv Sanitary Tee 4 in

Product Description

The WESTLAKE PIPE FITTINGS dwv-d400-040 is a Schedule 40 PVC sanitary tee fitting designed for drain, waste, and vent (DWV) piping systems. Sized at 4 inches nominal pipe size, it features all-hub ends and is manufactured from white PVC material. This fitting is built to handle the routing of drain and vent lines in residential and light commercial plumbing installations. It carries NSF 14 certification and meets ASTM D 3311, ASTM 1866, and ASTM 1784 standards, making it appropriate for code-compliant DWV work. Licensed plumbers and pipefitters are the primary installers of this type of fitting.

This sanitary tee is suited for 4-inch DWV branch configurations where a horizontal drain line intersects a vertical or horizontal main, with the branch turned in the direction of flow. It is commonly used in soil stacks, horizontal drain runs, and vent tie-ins in residential new construction and remodel plumbing. The hub-end connections accept standard Schedule 40 PVC pipe solvent-welded in place. Its maximum service temperature of 140 degrees F makes it appropriate for typical cold and warm waste drain applications but not for high-temperature discharge.

Key Features

• 4-inch nominal pipe size in Schedule 40/STD wall thickness
• All-hub end connections for solvent-weld assembly
• White PVC construction rated to 140 degrees F maximum
• NSF 14 certified for use in drain, waste, and vent systems
• Meets ASTM D 3311, ASTM 1866, and ASTM 1784 standards

Compatibility

Designed as an OEM-style DWV replacement and new-construction fitting compatible with 4-inch Schedule 40 PVC pipe in standard hub-end drain, waste, and vent systems.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) or applicable local codes. Before cutting into an existing drain line, isolate the section and ensure the system is not under pressure or active flow. Use PVC primer and solvent cement rated for DWV applications, and allow full cure time before restoring flow. Do not use this fitting on pressurized supply lines.

Technical Specifications

• Nominal Pipe Size: 4 inches
• Schedule: 40/STD
• Material: PVC
• Color: White
• End Type: Hub (all ends)
• Max Temperature: 140 degrees F
• Application: DWV (Drain, Waste, Vent)
• Standards: ASTM D 3311, ASTM 1866, ASTM 1784
• Certification: NSF 14
• UNSPSC Code: 40174608

Standard Information

• Brand: WESTLAKE PIPE FITTINGS
• Manufacturer Part Number: dwv-d400-040