Reduced Wye, Socket PVC Schedule 40 2" x 1-1/4" (475-250)

The 475-250 is a PVC Schedule 40 reduced wye fitting with a 2" socket run and a 1-1/4" socket branch outlet, all joined by solvent cement welding per ASTM D2564. The wye configuration positions the branch at a 45-degree angled takeoff from the mainline rather than the perpendicular 90-degree branch of a standard tee, producing a smoother, lower-turbulence flow transition at the branch junction that reduces flow restriction and minimizes the pressure loss and solids accumulation associated with abrupt directional changes at the branch point.

Manufactured from rigid PVC compound conforming to ASTM D1784 cell classification requirements, this fitting delivers the corrosion resistance, chemical compatibility, and long service life associated with Schedule 40 PVC across a wide range of drainage, waste, vent, and low-pressure distribution applications. The reduced configuration — 2" run reducing to a 1-1/4" branch — allows a smaller-diameter lateral or drain line to tie into a larger-diameter mainline at the branch, a layout common in DWV systems where individual fixture drain lines at 1-1/4" consolidate into a 2" primary drain run or waste stack.

The 1-1/4" branch size of the 475-250 targets a specific and common DWV application: the tie-in of individual lavatory, sink, and small fixture drain lines — which are frequently roughed in at 1-1/4" — into a 2" consolidation drain or waste main. The wye's angled branch geometry follows the natural direction of drainage flow, reducing the likelihood of solids and debris accumulation at the junction compared to a sharp 90-degree tee branch, and making the 475-250 the preferred fitting for sanitary drain lines where long-term drainage efficiency and blockage resistance are priorities. Where a direction change is also required at the branch connection, a wye paired with a 45-degree elbow produces the standard DWV sweep configuration used throughout residential and commercial drain rough-in.

Specifications:

Industries & Applications:

• Drain, Waste & Vent (DWV) — Connecting 1-1/4" lavatory, sink, and small fixture drain lines to 2" sanitary waste consolidation runs and drain stacks with the smooth, flow-aligned branch geometry that DWV applications require
• Commercial Plumbing — Waste line consolidation in commercial restrooms, break rooms, and mechanical spaces where 1-1/4" fixture drain branches tie into 2" primary waste runs during rough-in
• Residential Construction — Drain and waste rough-in where 1-1/4" lavatory and sink drain lines connect to 2" main drain runs in walls, floors, and under-slab installations
• Industrial Drainage — Low-turbulence branch connections in gravity-flow industrial drain systems handling process water, equipment washdown effluent, and non-pressurized fluid waste where smooth flow transitions reduce maintenance frequency
• Irrigation & Agriculture — Gravity-flow drainage and return line consolidation in greenhouse drainage manifolds, tail-water recovery systems, and agricultural wastewater collection networks where smaller lateral drains feed into larger collection mains
• Municipal & Site Drainage — Branch connections in site sanitary sewer lateral manifolds and storm drain collection systems where reduced wye geometry supports clean flow transitions in gravity-flow networks