Tee, Slip x Slip x FPT PVC Schedule 80 3" x 1-1/4" (802-336)

The 3" x 3" x 1-1/4" PVC Schedule 80 Reducing Tee (Slip x Slip x FPT) maintains full 3" run diameter through both solvent-weld slip ends while providing a 1-1/4" female-threaded branch port for direct connection to a threaded valve, instrument, equipment inlet, or branch line fitting. The combination of a full-bore solvent-welded run and a reducing threaded branch in a single fitting body eliminates the separate full-size tee, reducer bushing, and threaded adapter that would otherwise be required at the branch takeoff — reducing installed fitting count, minimizing potential leak points, and keeping the branch assembly compact in crowded mechanical layouts.

Compared to the 1" FPT branch of the adjacent 802-335, the 1-1/4" FPT branch of the 802-336 accommodates higher branch flow rates and connects to a broader range of mid-size threaded valves, strainers, instrumentation, and equipment ports. This makes the 802-336 a natural choice in applications where the branch connection must pass more than a monitoring or dosing flow — such as a secondary service line, bypass run, drain connection, or equipment feed requiring meaningful flow capacity off the 3" main.

Manufactured to ASTM D2467 standards and listed under NSF/ANSI 14, this fitting is molded from dark gray Schedule 80 PVC compound, delivering the greater wall thickness, elevated pressure ratings, and broad chemical resistance that Schedule 80 specifications demand. At a 3" run size with a 1-1/4" threaded branch, this tee is most commonly found in commercial mechanical systems, industrial process headers, pump station piping, and chemical distribution infrastructure.

Specifications:

Industries & Applications:

• Pump Systems & Mechanical Rooms — Installed in 3" pump discharge or suction headers where the primary run must pass through at full bore while branching to a 1-1/4" threaded connection for a secondary service line, bypass loop, pressure relief assembly, or auxiliary equipment inlet with higher flow demand than a small instrument port
• Chemical Processing — Used in large-diameter chemical distribution headers where a 3" solvent-welded supply line must feed a 1-1/4" threaded branch to a secondary process line, chemical sub-feed, or larger-format dosing connection in chemically aggressive service environments
• Industrial Manufacturing — Applied in process piping manifolds where a full-bore 3" run serves as a primary distribution main and a 1-1/4" threaded branch provides a higher-capacity takeoff for secondary process equipment, drain connections, or bypass lines without requiring additional transition fittings at the branch point
• Municipal Water & Wastewater — Installed in pump station headers, treatment facility process lines, and distribution infrastructure where a 3" Schedule 80 main requires a 1-1/4" threaded branch to a service valve, sampling connection, chemical feed inlet, or smaller secondary distribution line
• Commercial Plumbing — Used in mechanical room service headers where a 3" solvent-welded run must branch to a 1-1/4" threaded connection for a drain valve, secondary service line, equipment feed, or pressure monitoring assembly requiring more than minimal flow capacity at the branch
• Irrigation & Agricultural — Applied at pump discharge headers and filter station manifolds where a 3" mainline must branch to a 1-1/4" threaded valve, filter inlet, or chemical injection assembly in large-scale commercial or agricultural irrigation infrastructure
• Aquaculture & Water Treatment — Suits recirculating system distribution headers where a 3" solvent-welded supply line feeds 1-1/4" threaded branch connections to filter vessel inlets, treatment equipment ports, or secondary recirculation lines requiring meaningful branch flow capacity