3 inch PVC Sewer and Drain Cap

Contractor-Grade 4" P1604 WEST S&D Cap – Built for Secure Termination

The 4" P1604 WEST S&D Cap is engineered for dependable closure of sewer and drain lines in non-pressurized systems. This fitting is designed to provide a clean, permanent seal at the termination point of 4-inch PVC SDR-35 and similar piping systems. Its structural integrity and material compatibility make it a reliable choice for municipal, commercial, and residential drainage infrastructure.

Product Advantages for Field Installation

• ✅ Solvent Weld Socket End – Accepts standard 4" solvent weld SDR-35 pipe for direct, secure joining without the need for transition couplings.
• ✅ Impact-Resistant PVC – Manufactured from high-strength polyvinyl chloride, capable of withstanding typical jobsite handling and backfill pressures.
• ✅ Low-Profile Cap Design – Flush-fit head minimizes obstruction in ground-level cleanouts and access points, allowing compact installation in tight vertical and horizontal clearances.
• ✅ Code-Compliant – Manufactured in accordance with ASTM D3034 and suitable for use in gravity-fed drainage and sewer systems where caps are required by local code.

Specifications

• Size: 4-inch nominal
• Material: Injection-molded PVC
• Connection Type: Solvent weld socket
• Applications: Gravity sewer, storm drain, non-pressure DWV systems
• Compliance: Meets ASTM D3034, SDR-35 dimensional standards

Common Uses in the Field

The P1604 WEST S&D Cap is commonly installed at terminal ends of lateral sewer lines, inspection ports, or where system expansion is anticipated. It can also be used to seal off unused pipe branches in manhole connections, interceptor systems, or cleanout risers during phased construction.

Technical Considerations

For optimal performance, ensure pipe ends are clean and square-cut prior to application of primer and solvent cement. Allow sufficient curing time per cement manufacturer’s instructions before subjecting the joint to backfill or hydrostatic conditions. In systems requiring removal access, consider alternative mechanical or threaded cap assemblies.

With proven field performance and compatibility with SDR-35 systems, the 4" P1604 WEST S&D Cap is an essential component for drainage terminations where reliability and compliance are non-negotiable. Ensure your next install meets spec—choose fittings designed for the demands of professional-grade work.