Reducing Tee, Slip x Slip x Slip PVC Schedule 80 1-1/4" x 1-1/4" x 1" (801-168)

The 801-168 is a 1-1/4" x 1-1/4" x 1" Schedule 80 PVC reducing tee with slip (socket) connections on all three ports, commonly referenced by its shorthand size designation of 1-1/4" x 1". Both run ends are 1-1/4 inches and the branch outlet is 1 inch — a single nominal step reduction at the branch. All three connections are solvent weld sockets with no threaded interfaces, making this an all-permanent fitting where every joint is fixed once cemented. The 801-168 is the highest-capacity reducing branch configuration available in the 801-series 1-1/4"-run sub-group, providing a branch bore just one nominal size below the mainline and capable of supporting the greatest flow volume of any reduced-branch option at this run size.

Within the 801-series 1-1/4" reducing tee lineup, the 801-168's 1-inch branch is meaningfully larger than the 3/4-inch branch of the 801-167. Where a 3/4-inch branch is appropriate for secondary zone feeds, single-device supply lines, and modest-flow service connections, a 1-inch branch is suited to high-volume secondary distribution headers, major bypass assemblies, large equipment supply lines, and any branch application where the flow demand approaches the capacity of the mainline itself. The single nominal step reduction from 1-1/4 to 1 inch is the smallest reducing differential available in a tee at this run size — producing a branch that is nearly full-bore and carries the vast majority of the pressure-flow capability of the 1-1/4-inch mainline.

For buyers evaluating the 801-168 alongside the 802-012 — the 1-1/4-inch Schedule 80 straight tee with a Slip x Slip x FPT mixed connection — the key decision axis is branch size and serviceability. The 802-012 maintains full 1-1/4-inch bore throughout all three ports and provides a threaded, serviceable branch for valve and equipment connections that must be broken and remade. The 801-168 steps the branch down to 1 inch and permanently cements all three ports — the correct choice when the branch pipe size need not match the run and the branch joint is a fixed, permanently routed installation rather than a serviceable threaded interface. When both full branch size and serviceability are required, the 802-012 is the appropriate fitting; when a slightly reduced branch in a fully permanent all-slip assembly is acceptable, the 801-168 provides a cleaner, more compact result.

All three socket ends accept standard Schedule 80 PVC pipe for solvent weld assembly. Each joint is individually primed and cemented, producing permanent, pressure-rated connections at every port. The assembly pressure rating is governed by the 1-1/4-inch run ends at 370 PSI @ 73°F — the 1-inch branch end alone rates at 450 PSI, but the assembled fitting uses the lower of the two end ratings for system design purposes. The narrower pressure differential between ends (370 PSI vs. 450 PSI) compared to other reducing fittings in this catalog reflects the close nominal sizing of the 1-1/4" and 1" pipe sizes.

Schedule 80 wall thickness provides the higher pressure rating and mechanical strength required for industrial chemical feed, process piping, and utility water systems. Gray PVC delivers broad chemical resistance to acids, alkalis, salts, and many industrial process fluids with no corrosion risk in continuously wet or chemically aggressive environments. All three socket ends are manufactured and dimensioned to ASTM D2467 standards for Schedule 80 PVC socket fittings.

Specifications:

Pressure rating is for water service at 73°F. Assembly pressure rating is governed by the lower-rated 1-1/4-inch run ends at 370 PSI. The 1-inch branch end in isolation rates at 450 PSI but does not govern the assembled fitting rating. Derate for elevated temperatures and aggressive chemical service per manufacturer guidelines. All three socket joints are permanent once cemented — confirm pipe alignment and branch orientation before cement sets.

Industries & Applications:

The 801-168 Schedule 80 reducing tee serves industrial, chemical, and process piping applications wherever a 1-1/4-inch Schedule 80 PVC mainline requires a permanent all-solvent-weld, high-capacity 1-inch branch for major secondary distribution, high-volume equipment supply, or near-full-bore bypass connections:

• Chemical Processing & Water Treatment — High-capacity permanent branch connections on 1-1/4-inch chemical feed, chlorination, acid dosing, and reagent distribution headers where a 1-inch all-slip branch supplies major secondary treatment loops, high-volume equipment connections, and large bypass assemblies on permanently routed systems where the branch must carry near-mainline flow volumes
• Industrial Process Piping — Near-full-bore permanent reducing branch connections on 1-1/4-inch process distribution and utility water headers where a 1-inch branch supplies major secondary process lines, high-flow equipment connections, and primary loop bypass feeds at fixed three-way junction points in permanently routed all-solvent-weld industrial process systems
• Pump & Filtration Systems — High-capacity three-way permanent flow distribution on 1-1/4-inch pump discharge and recirculation headers where a 1-inch branch supplies major bypass loops, primary filter inlet connections, and high-flow secondary recirculation entries as a fixed permanently cemented branch carrying the majority of the pump output
• Agricultural & Irrigation Systems — Permanent high-capacity branch connections on 1-1/4-inch pressurized irrigation supply and pump discharge headers where a 1-inch branch feeds primary zone distribution mains, large-volume filter station inlets, and high-flow control equipment — applications where the 3/4-inch branch of the 801-167 would be undersized for the required zone flow demand
• Municipal & Commercial Plumbing — Permanent near-full-bore reducing branches on 1-1/4-inch Schedule 80 utility water and service lines where a 1-inch branch supplies major fixture groups, primary secondary distribution mains, and high-flow equipment connections as fixed permanent joints on systems where Schedule 80 pressure ratings and all-solvent-weld construction are both specified
• HVAC & Cooling Systems — High-capacity permanent branch connections on 1-1/4-inch chemical treatment feed lines and condenser water piping where a 1-inch all-slip branch supplies major bypass loops, primary treatment equipment connections, and high-flow secondary distribution lines as fixed all-solvent-weld junctions in permanently routed mechanical room installations
• Semiconductor & Electronics Manufacturing — Permanent near-full-bore all-slip flow distribution on 1-1/4-inch ultra-pure water and chemical distribution headers where a 1-inch branch feeds primary secondary distribution runs and high-demand equipment connections — applications where the all-solvent-weld construction eliminates threaded engagement surfaces, minimizes potential contamination points, and maintains the non-reactive smooth bore throughout the entire branched assembly