Reduced Wye Socket, PVC Schedule 40 1 1/2" x 3/4" (475-210)

The 475-210 is a Schedule 40 PVC reduced wye fitting with 1-1/2-inch slip (socket) connections on both run ends and a 3/4-inch slip (socket) outlet on the branch. All three ports accept PVC pipe via solvent cement — the 1-1/2" run sockets accept standard 1-1/2" Schedule 40 or Schedule 80 PVC pipe, while the 3/4" branch socket accepts standard 3/4" Schedule 40 or Schedule 80 PVC pipe. As the smallest branch outlet in the cataloged 1-1/2" run sub-series of the 475 family, the 475-210 is best suited for applications where the downstream branch must serve a small-bore secondary circuit, low-flow service line, drain tap, vent connection, or instrument branch rather than a full-capacity flow-carrying lateral — a more pronounced step-down than the 475-211 (1-1/2" x 1") or 475-212 (1-1/2" x 1-1/4").

As with all fittings in the 475 series, the defining functional advantage over a standard tee is the 45° branch angle. Where a tee introduces branch flow at a sharp 90° perpendicular to the main run, the wye merges or diverts flow at a gradual 45° sweep — substantially reducing turbulence at the junction, lowering pressure drop through the fitting, and placing less mechanical stress on the pipe run at the branch point. In drainage and gravity-flow applications, the 45° entry angle is the preferred — and in many codes, the required — branch geometry at horizontal drain junctions, where a 90° tee entry disrupts flow velocity and increases blockage risk. In pressurized systems, the hydraulic efficiency of the wye branch supports better flow balance and lower head loss compared to a tee-based layout.

The 3/4" branch socket directly accepts 3/4" pipe without requiring a separate downstream reducing bushing, keeping the assembly compact and the joint count to a minimum. Manufactured from rigid, high-impact PVC compound conforming to ASTM D2466, the 475-210 is rated for continuous cold-water pressure service and is dimensionally compatible with standard Schedule 40 and Schedule 80 PVC pipe and fittings throughout. Apply a medium-bodied PVC primer and standard-bodied PVC cement per ASTM D2564 to all three socket ports and corresponding pipe ends before assembly; ensure full pipe insertion to the socket stop and maintain joint alignment during the cure set period at all three connections.

Specifications:

Industries & Applications:

• Municipal & Commercial Plumbing — Joins a 3/4" small-bore branch line to a 1-1/2" supply or drainage main at a 45° angle in commercial plumbing systems where the wye geometry reduces turbulence at the junction and the reduced branch accommodates secondary service lines, hose bib feeds, or small-bore fixture connections off the main run.
• Drainage & Waste Systems — Used in DWV and gravity-flow drainage systems where a 3/4" vent, drain, or fixture branch must connect to a 1-1/2" horizontal drain main at the code-preferred 45° wye entry angle, maintaining flow velocity and reducing the risk of solids accumulation at the branch junction.
• Water Treatment & Distribution — Provides a small-bore 45° branch tap on a 1-1/2" Schedule 40 distribution or treatment system header for chemical injection feeds, sample ports, instrument connections, or low-flow secondary circuits within a fully solvent-welded system.
• Irrigation & Agricultural Systems — Installed at mainline lateral junctions and drip distribution headers where a 1-1/2" cemented run must supply a 3/4" branch for low-flow zone laterals, solenoid valve feeds, pressure gauge connections, or fertigation injection points at a gradual angle to minimize head loss.
• Industrial Process Piping — Provides a low-turbulence small-bore branch takeoff in 1-1/2" PVC process lines for 3/4" secondary circuits, bypass bleed lines, chemical injection branches, or instrumentation taps where the 45° wye geometry minimizes flow disruption at the junction in corrosion-resistant systems.
• Pool & Spa Plumbing — Used at circulation system branch points and equipment manifold junctions where a 1-1/2" run must supply a 3/4" auxiliary equipment feed, chemical dosing branch, or small-bore secondary circuit at a gradual entry angle to reduce resistance and support efficient system performance.