4 inch PVC DWV Cleanout Adapter Fitting x Female

4-Inch PVC DWV Cleanout Adapter – Schedule 40, Threaded Access for Drainage Systems

The 4-Inch PVC DWV Cleanout Adapter is a Schedule 40 drainage fitting designed to provide threaded access to non-pressurized waste systems. It allows for easy rodding, inspection, and maintenance at designated intervals. Manufactured to ASTM D2665 and conforming to the dimensional standards of ASTM D3311, this fitting ensures compatibility with standard DWV piping systems.

Ideal for use in horizontal or vertical drain lines, the adapter accepts a cleanout plug (sold separately) via its internal female threads. It is solvent-welded to 4-inch nominal DWV pipe to establish a secure, code-compliant cleanout point.

Product Specifications

• Nominal Size: 4 inches
• Material: PVC (polyvinyl chloride), white
• Wall Rating: Schedule 40
• Connection: Spigot x Female Threaded
• Standards Compliance: ASTM D2665, CSA B181.2, NSF 14 listed
• Application: Non-pressure DWV systems only

Installation Guidance

This cleanout adapter is installed via solvent cement welding using approved primer and cement per ASTM F656 and ASTM D2564. Ensure the fitting is aligned properly before setting. The internal threads accept standard PVC cleanout plugs or mechanical test plugs. Torque applied during plug installation should not exceed the manufacturer's recommended limits to avoid cracking.

Common Uses

Typically used in residential and commercial DWV installations as a maintenance access point. It is installed in accordance with IPC and UPC requirements, usually at the base of vertical stacks, near building drains, or at directional changes greater than 135 degrees.

Compliance Note

Per IPC Section 708 and UPC Section 707, cleanouts are required at specified intervals and directional changes. This fitting provides a compliant means of fulfilling those code mandates while maintaining system accessibility.

Material Properties

PVC Schedule 40 is known for its excellent chemical resistance, smooth interior surface for low friction loss, and high dimensional stability. It is suitable for gravity-flow DWV systems and offers a long service life under typical operating conditions.

The 4-Inch PVC DWV Cleanout Adapter is a key component for maintaining code-compliant access in drainage systems. Engineered for consistent dimensional accuracy and structural integrity, it supports long-term performance and system serviceability in field applications.