Tee, Slip x Slip x FPT PVC Schedule 80 3" x 1-1/2" (802-337)

The 3" x 3" x 1-1/2" PVC Schedule 80 Reducing Tee (Slip x Slip x FPT) maintains full 3" run diameter through both solvent-weld slip ends while providing a 1-1/2" female-threaded branch port for direct connection to a threaded valve, equipment inlet, bypass line, or secondary distribution fitting. The 1-1/2" FPT branch is the largest threaded outlet in the confirmed 802-33x sub-series, making the 802-337 the appropriate selection when the branch connection must carry a meaningful share of the system's flow rather than serve a monitoring, dosing, or instrument function.

At a 1-1/2" branch size, this fitting bridges the gap between a small instrument-style takeoff and a near-equal reducing tee. A 1-1/2" threaded branch off a 3" solvent-welded run is well-proportioned for secondary service lines, bypass assemblies, drain connections, equipment feeds, and branch runs that require substantial flow capacity without warranting a full-diameter branch. The FPT branch port accepts any standard 1-1/2" MPT fitting, valve, or equipment connection, providing broad compatibility across the NPT threaded fitting ecosystem.

By consolidating a full-bore run tee, a reducer bushing, and a threaded adapter into a single fitting body, the 802-337 reduces installed fitting count, minimizes potential leak points, and keeps the branch assembly compact — advantages that compound in crowded mechanical spaces and industrial panel piping where every fitting saved translates directly to installation time and long-term maintenance simplicity.

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 3" run size, 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 passes through at full bore while the 1-1/2" threaded branch feeds a secondary service line, bypass loop, pressure relief assembly, or auxiliary pump connection requiring meaningful flow capacity beyond what a small instrument port provides
• Chemical Processing — Used in large-diameter chemical distribution headers where a 3" solvent-welded supply line must feed a 1-1/2" threaded secondary process line, sub-distribution branch, or higher-volume chemical feed connection in environments requiring PVC's broad resistance to acids, bases, and aggressive industrial fluids
• Industrial Manufacturing — Applied in process piping manifolds where a full-bore 3" primary distribution run must branch to a 1-1/2" threaded equipment feed, bypass line, or drain connection with substantial flow capacity — eliminating the need for a standard tee plus separate reducer and adapter 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 1-1/2" threaded branch to a service valve, secondary distribution line, chemical feed system, or treatment equipment inlet
• Commercial Plumbing — Used in mechanical room service headers where a 3" solvent-welded run must branch to a 1-1/2" threaded connection for a secondary service line, equipment feed, drain assembly, or bypass run requiring higher branch flow capacity than a small-diameter instrument port can provide
• Irrigation & Agricultural — Applied at pump discharge headers and filter station manifolds where a 3" mainline must branch to a 1-1/2" threaded valve, filter inlet, fertigation injector assembly, or lateral distribution line in large-scale commercial or agricultural irrigation infrastructure
• Aquaculture & Water Treatment — Suits recirculating system distribution headers where a 3" solvent-welded supply line feeds a 1-1/2" threaded branch connection to a filter vessel inlet, UV system port, or secondary recirculation line carrying a significant portion of total system flow