1-1/2 inch PVC DWV Plug

1-1/2 inch PVC DWV Male Threaded Plug – MPT Termination Fitting for Drainage Systems

The 1-1/2 inch PVC DWV MPT Plug is designed to terminate or test a threaded drainage line. With male NPT threads, this fitting provides a secure mechanical seal in drain, waste, and vent (DWV) systems using standard threaded female cleanouts or fittings. It is intended for use in non-pressurized gravity-flow systems and fabricated from high-impact, corrosion-resistant PVC.

This plug is suitable for both temporary and permanent installations where access to the piping system must be blocked off for maintenance, system pressure testing (with limitations), or sealing of future connections.

Technical Specifications

• Material: PVC (polyvinyl chloride), conforms to ASTM D2665 or D1784 for Type 1, Grade 1 compounds
• Nominal Size: 1-1/2 inch
• Connection Type: Male Pipe Thread (MPT), tapered per ANSI B1.20.1
• System Use: Non-pressurized DWV (drainage, waste, vent) systems

Key Functional Attributes

• ✅ Threaded Seal – Tapered threads allow for secure engagement when used with approved PTFE tape or thread sealant.
• ✅ Corrosion Resistance – PVC composition is resistant to most domestic waste materials and common installation environments.
• ✅ Code-Compliant Design – Manufactured to meet IPC and UPC standards where PVC DWV fittings are accepted.
• ✅ Non-Conductive – Safe for use in plumbing systems where electrical conductivity is a concern.

Installation Guidance

Apply thread sealant or PTFE tape to the male threads before insertion into the mating female fitting. Do not overtighten, as overtightening may cause cracking or deformation. This fitting is not intended for use in pressurized systems and should only be used in gravity-flow DWV applications.

Common Use Cases

Typically installed in cleanout ports, test tees, or as a temporary system termination in new construction. Also used during pressure-drop testing of DWV lines (to specified limits) prior to inspection and backfilling.

Standards & Approvals

This fitting conforms to ASTM D2665 for PVC DWV fittings and is recognized under plumbing codes including the International Plumbing Code (IPC) and Uniform Plumbing Code (UPC). Not intended for potable water systems or continuous pressure environments.

The 1-1/2 inch PVC DWV MPT Plug is a reliable component for sealing or testing threaded terminations in drainage systems, delivering a secure closure with long-term material integrity in non-pressurized service applications.