Tee, Slip x Slip x Slip PVC Schedule 80 1-1/4" x 3/4" (801-167)

The 801-167 is a 1-1/4" x 3/4" Schedule 80 PVC reducing tee with slip (socket) connections on all three ports. The full port configuration is 1-1/4" x 1-1/4" x 3/4" — both run ends are 1-1/4 inches and the branch outlet is 3/4 inch, a single nominal step reduction. All three ports are solvent weld sockets; there are no threaded interfaces on any port. This all-slip configuration makes every joint in the assembly permanent once cemented, producing a three-way flow distribution fitting where the mainline run and the branch outlet are all fixed, permanently routed pipe connections.

The 1-1/4-inch run passes mainline flow straight through the fitting body with minimal restriction while the 3/4-inch branch delivers a reduced but fully capable service branch. At 3/4 inch, the branch is not an instrumentation or injection port — it is a full-service pipe size capable of supporting meaningful flow throughput at Schedule 80 pressure ratings, appropriate for secondary distribution branches, bypass feeds, equipment supply lines, and service connections where the branch must carry real flow volume at a reduced pipe size from the mainline.

Two closely related Schedule 80 PVC tee entries in this catalog are worth distinguishing clearly from the 801-167. The first is the 802-012 — a Schedule 80 straight tee (all ports 1-1/4 inches, same size) with a Slip x Slip x FPT mixed connection configuration where the branch is female NPT threaded and serviceable. The 802-012 is the correct choice when the branch must remain reconnectable and the full 1-1/4-inch branch pipe size must be maintained; the 801-167 is the correct choice when all three ports are permanently routed solvent weld pipe runs and the branch requires only 3/4-inch flow capacity. The second distinction is from the 402-series Schedule 40 reducing tees with FPT branches — those are Schedule 40, white PVC, with a threaded branch for serviceability. The 801-167 is Schedule 80, gray PVC, all-slip, all permanent — the branch is solvent welded into the fitting like both run ends, with no threaded interface and no provision for independent disassembly of the branch connection.

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 when properly assembled. The assembly pressure rating is governed by the 1-1/4-inch run ends at 370 PSI @ 73°F — the 3/4-inch branch end alone rates at 690 PSI, but system design must use the lower of the end ratings for the assembled fitting.

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 3/4-inch branch end in isolation rates at 690 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 801-167 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 3/4-inch branch for secondary distribution, equipment supply, or service connections:

• Chemical Processing & Water Treatment — Permanent all-slip three-way flow distribution on 1-1/4-inch chemical feed, chlorination, acid dosing, and reagent distribution headers where a 3/4-inch branch supplies secondary treatment equipment, bypass loops, and service connections on permanently routed systems where no threaded interface is required or desired at the branch position
• Industrial Process Piping — Permanent reducing branch connections on 1-1/4-inch process distribution and utility water headers supplying 3/4-inch secondary process lines, equipment connections, and service branches at fixed three-way junction points where all-solvent-weld construction is specified for its joint strength, chemical resistance, and elimination of threaded engagement surfaces
• Pump & Filtration Systems — Three-way permanent flow distribution on 1-1/4-inch pump discharge and recirculation headers where a 3/4-inch branch supplies bypass feeds, secondary loop entries, and filter backwash connections as a fixed, permanently cemented branch rather than a serviceable threaded connection
• Agricultural & Irrigation Systems — Permanent reducing branch connections on 1-1/4-inch pressurized irrigation supply and pump discharge headers where a 3/4-inch branch feeds zone distribution sub-mains, drip system laterals, and flow control equipment inlets as a fixed, solvent-welded branch in a permanently routed field distribution network
• Municipal & Commercial Plumbing — Permanent three-way reducing connections on 1-1/4-inch Schedule 80 utility water and service lines where a 3/4-inch branch supplies fixture connections, secondary distribution branches, and service takeoffs as fixed permanent joints on systems where Schedule 80 pressure ratings and all-solvent-weld construction are both specified
• HVAC & Cooling Systems — Permanent reducing branch connections on 1-1/4-inch chemical treatment feed lines and condenser water piping supplying 3/4-inch secondary equipment connections, bypass feeds, and instrument supply lines as fixed all-solvent-weld junctions in permanently routed mechanical room installations
• Semiconductor & Electronics Manufacturing — Permanent all-slip three-way flow distribution on 1-1/4-inch ultra-pure water and chemical distribution headers supplying 3/4-inch branch distribution lines and equipment connections where all-solvent-weld construction minimizes joint count, eliminates threaded engagement surfaces, and maintains the non-reactive smooth bore throughout the branched assembly