Tee, Slip x Slip x Slip PVC Schedule 40 8" (401-080)

The 8" PVC Schedule 40 Tee (401-080) is a full-size, slip-socket fitting that introduces a same-diameter 8" branch outlet at a right angle to the main pipeline run — the most fundamental branch junction fitting in large-diameter PVC piping systems. With slip connections on all three ports, the 401-080 accepts solvent-welded Schedule 40 PVC pipe at both run ports and the full-size branch outlet for a permanently bonded, full-pressure assembly that maintains consistent pipe diameter and flow capacity across the entire fitting at the branch junction.

Unlike reducing tee configurations that step down the branch to a smaller outlet size, the full-size 401-080 delivers the complete 8" diameter at the branch — making it the correct specification wherever the branch flow demand equals or approaches the mainline capacity, where the branch feeds a parallel main of equivalent size, or where the branch connection point will be reduced downstream rather than at the tee itself. This full-bore branch geometry also makes the 401-080 the appropriate base fitting for installations where the branch size requirement is not yet finalized or may change, as a downstream reducer can be added, swapped, or removed independently of the tee without disturbing the main line joints.

At 8" diameter, the 401-080 is a fitting of considerable physical scale and hydraulic significance. The full right-angle branch geometry introduces measurable head loss and flow turbulence at the junction — factors that carry greater weight in hydraulic system design at large diameters and high flow velocities than at smaller pipe sizes. For flow-sensitive or high-velocity systems where minimizing branch head loss is a design priority, the hydraulic impact of a full 90-degree branch tee should be evaluated in the system model alongside the piping layout requirements driving the branch location.

Manufactured from white PVC compound meeting ASTM D2466 dimensional standards, the 401-080 delivers the corrosion resistance, chemical inertness, and long-term durability that make Schedule 40 PVC the dominant material for large-bore water distribution, irrigation infrastructure, and industrial process piping at this diameter and pressure class.

Specifications:

Heavy-bodied solvent cement is required for all socket joints at 8" diameter. Allow full extended cure time before pressurizing or backfilling — 8" socket joints require significantly longer cure schedules than small-bore fittings. Thrust restraint or thrust blocking must be evaluated at all tee branch locations in pressurized buried systems; unbalanced thrust forces at full-size 8" branch tees are substantial and require engineered restraint solutions in most buried service applications. Pressure-temperature derating applies at elevated service temperatures per ASTM standards.

Industries & Applications:

• Municipal Water Distribution — Transmission and primary distribution main branch junctions where an equal-size 8" branch feed is required for parallel distribution loops, major service zone sub-mains, storage tank fill lines, booster station headers, fire flow mains, or interconnection points between distribution zones where full mainline flow capacity must be maintained at the branch
• Agricultural & Large-Scale Irrigation — 8" mainline trunk distribution systems requiring a full-size 8" branch junction at pump station manifolds, major zone distribution headers, system interconnection points, or parallel main extensions on large farms, golf courses, and managed landscape campuses where the branch flow demand equals the mainline capacity
• Industrial Process Piping — High-volume fluid transfer systems requiring a full-bore 8" branch junction at parallel circuit splits, process loop interconnections, equipment manifold inlets, or system boundary tie-points where maintaining full pipe diameter at the branch is specified for hydraulic or process flow reasons
• Water & Wastewater Treatment — Plant distribution main branch junctions supplying full-size 8" feeds to parallel filtration trains, aeration basin distribution headers, clarifier influent manifolds, or primary treatment process lines where full mainline flow capacity is required at the branch connection point
• Stormwater & Flood Control Infrastructure — Large-diameter gravity or low-pressure stormwater collection and conveyance systems requiring a full-size 8" branch junction at primary collector main intersections, basin inlet manifolds, or outfall distribution points where equal branch flow capacity is required
• Fire Protection Supply Systems — Underground or above-grade 8" fire suppression supply mains requiring a full-size branch junction at pump house headers, dedicated fire storage fill connections, system interconnection loops, or large-diameter hydrant main branch points where full 8" flow capacity at the branch is required by system design or fire flow demand calculations
• Commercial & Institutional Plumbing — High-capacity chilled water, condenser water, or process water mains requiring a full-size 8" branch junction at parallel circuit splits, mechanical room distribution manifolds, or campus utility loop interconnection points in large commercial, institutional, or industrial facilities
• Aquaculture & Water Management — High-flow recirculation, intake, or discharge systems requiring a full-bore 8" branch junction at parallel raceway feed manifolds, primary pond inlet distribution headers, or treatment system main circuit interconnections where full mainline flow capacity is required at the branch point