4 inch PVC Schedule 40 Cap

4" Schedule 40 PVC Cap – Solvent Weld End

The 4" PVC Schedule 40 Cap is designed to provide a dependable seal at the termination point of a pipeline. Manufactured from rigid polyvinyl chloride (PVC), this fitting is engineered for use in pressure and non-pressure systems and is solvent-welded for a permanent, watertight closure.

This cap conforms to ASTM D2466 and is suitable for cold water systems, drainage, and vent piping. Its lightweight design does not compromise its structural strength, making it a practical and efficient solution for long-term installations.

Key Features

• ✅ Schedule 40 Wall Thickness – Rated for moderate pressure systems in residential and commercial settings
• ✅ Solvent Weld Socket – Facilitates permanent joining using standard primer and solvent cement
• ✅ Non-Metallic Construction – Corrosion-resistant and suitable for use in chemical and damp environments
• ✅ Low Maintenance – Smooth interior prevents scale buildup and ensures consistent flow
• ✅ Compatible with PVC Pipe – Fits standard 4" nominal size Schedule 40 pipe (ASTM D1785)

Technical Specifications

• Material: PVC Type I, Grade I per ASTM D1784
• Size: 4 inch nominal
• Connection: Socket (solvent weld)
• Pressure Rating: Up to 140 PSI @ 73°F (non-shock, dependent on pipe and system design)
• Standards: ASTM D2466, NSF 14/61 certified for potable water systems

Installation Guidelines

Ensure proper preparation of pipe and fitting ends with primer and solvent cement. Insert fully and hold to allow for initial set. Follow all applicable codes and pressure guidelines. Allow for full cure before pressurizing the system. For non-pressurized DWV systems, this cap may also be used to block future expansion outlets or isolate system branches.

Applications

This PVC cap is commonly used in:

• Cold water distribution systems
• Drain, Waste, and Vent (DWV) systems
• Irrigation mainline terminations
• Backflow preventer bypass sealing

Compliance Note

Lead-free and compliant with NSF/ANSI 61 requirements for potable water applications. Not recommended for compressed air or gas service.

The 4" PVC S40 Cap delivers a secure, code-compliant termination for a wide range of plumbing systems. Its performance in pressure and drainage applications makes it a reliable solution for new construction and retrofit projects alike.