3 inch PVC Sewer and Drain Cap

3" P1603 S&D Cap – PVC End Closure for Sewer and Drain Piping Systems

The 3" P1603 Sewer & Drain (S&D) Cap is a solvent-weld end fitting used to terminate open ends of non-pressurized PVC piping systems. This cap is commonly installed at the terminal point of a run or cleanout branch within gravity-fed sewer and drainage networks. It is engineered to meet dimensional standards for SDR-35 and other S&D-rated piping systems, providing a secure seal against infiltration and debris entry.

Constructed from rigid polyvinyl chloride (PVC), the cap is suitable for both above- and below-grade applications. It is intended for use in residential and light commercial drainage systems, including sanitary sewer laterals, stormwater lines, and cleanout terminations.

Performance Features

• ✅ Nominal Size: 3-inch socket-type cap for SDR-35 S&D pipe
• ✅ Material: PVC conforming to ASTM D3034 and D1784 (Cell Class 12454)
• ✅ Connection Method: Solvent weld (requires primer and PVC cement)
• ✅ Usage: Suitable for non-pressurized sewer and stormwater systems only
• ✅ Finish: Smooth interior and exterior surfaces for ease of installation and consistent bonding

Installation Guidelines

Clean and dry-fit the cap and pipe before applying primer and solvent cement. Insert the cap onto the pipe with a quarter-turn to fully seat the fitting and ensure proper bonding. Allow sufficient curing time per cement manufacturer instructions. The cap may be left permanently in place or temporarily installed for pressure testing or access closures, depending on job requirements.

Typical Applications

The P1603 S&D Cap is used to terminate 3" gravity-flow piping in sanitary and storm sewer systems. Typical installations include mainline ends, inspection cleanouts, and branch stub-outs pending future connection. It is compliant with plumbing codes governing non-pressure PVC systems and may be used in conjunction with SDR-35 or equivalent-rated piping products.

Material Properties

PVC offers high resistance to corrosion, microbial attack, and chemical exposure commonly encountered in wastewater conveyance. Its lightweight nature simplifies handling and fabrication in the field, while its rigidity ensures dimensional stability under standard operating conditions.

The 3" P1603 S&D Cap is a field-proven component for sealing open pipe ends in sewer and drainage systems. Designed for compatibility with SDR-rated piping and code-compliant solvent welding procedures, it delivers a durable and watertight closure point in both temporary and permanent configurations.