8" Slip Cap PVC SCH 40

Technical Specifications

The 8" Slip Cap PVC SCH 40 is engineered for the reliable sealing of large-diameter piping systems in residential, commercial, and industrial environments. Manufactured from Schedule 40 PVC, this cap delivers long-lasting corrosion resistance and dependable performance in cold-water and low-pressure applications.

• Nominal Size: 8"
• Connection Type: Slip / Socket (fits over 8" Schedule 40 PVC pipe)
• Material: Schedule 40 PVC
• Color: White
• Max Service Temperature: 140°F
• Pressure Rating: Standard Schedule 40 rating for 8" pipe (lower PSI at larger diameters; ideal for non-pressurized or low-pressure systems)
• Standards: ASTM D1784
• Part Number: 447-080
• Product Family: Schedule 40 PVC
• Carton Quantity: 4
• Pallet Quantity: 96

Typical Applications

This 8" PVC Pipe Cap is widely seen across plumbing, construction, and infrastructure projects that need a consistent way to terminate, isolate, or protect large pipe runs.

The most common use cases include:

• Industrial and commercial water lines
• Agricultural irrigation mains and distribution systems
• Aquaculture tanks, raceways, and filtration loops
• Municipal drainage and stormwater systems
• Large pump suction or discharge pipelines
• Construction-phase protection for exposed pipe ends
• System pressure testing and temporary isolation
• Permanent or future-expansion line terminations

Thanks to its slip-style socket design, installation is quick and secure even for high-capacity systems.

Installation & Handling Tips

Large-diameter Schedule 40 components require proper preparation to achieve a reliable, watertight seal:

• Clean and dry both the pipe end and cap socket before installation
• Apply PVC primer, then solvent cement per manufacturer guidelines
• Push the cap fully onto the pipe with firm, even pressure; large fittings may require a strap wrench or assistance
• Support the pipe to prevent sagging or torque while the cement cures
• Allow full cure time before testing the system
• Do not exceed PVC temperature or pressure limits
• Note: Not designed for compressed air or gas systems
• Handle with care: 8" fittings are bulky and can be heavy

Why Choose Maxx Supply?

Maxx Supply is a trusted source for large-diameter Schedule 40 PVC fittings, with reliable inventory for contractors, engineers, and facilities teams working under tight deadlines.

Our customers benefit from:

• Consistent stock of hard-to-find, large-diameter PVC caps
• Fast shipping for residential, commercial, and industrial projects
• ASTM-compliant materials for potable-water applications
• Competitive pricing with carton and pallet options
• Responsive, knowledgeable support for sizing, compatibility, and system design questions
• A dependable supply chain suitable for ongoing builds and maintenance programs