Reduced Wye, Socket PVC Schedule 40 3" x 1" (475-335)

The 3" x 1" PVC Schedule 40 Reduced Wye (Socket) provides a smooth, angled branch connection off a 3" solvent-welded drain or gravity-flow run, accepting a 1" pipe at the branch port. As the smallest branch size in the confirmed 475-33x sub-series, the 475-335 serves applications where a minimal-diameter drain line — a single small fixture, a condensate drain, an equipment overflow outlet, or a small-diameter floor drain branch — must enter a 3" collection main at a low-turbulence, code-compliant angle.

The wye geometry orients the 1" branch at approximately 45 degrees to the 3" main run, allowing branch flow to merge gradually with the primary drain stream rather than entering perpendicular as it would through a sanitary tee. At a 3" to 1" size differential — the largest branch reduction in the sub-series — the volume contribution from the branch is modest relative to the main run capacity, making flow dynamics at the junction straightforward. The primary design value here is not flow balancing but rather the geometry of the connection itself: a 45-degree wye entry is cleaner, less turbulent, and more conducive to self-scouring drain performance than a 90-degree tee branch, regardless of the relative flow volumes involved.

A 1" drain branch connection is most commonly encountered in older building drain systems, specific equipment drain configurations, condensate outlet lines, emergency overflow drains, and retrofit applications where existing 1" rough-in connections must be preserved and integrated into a larger-diameter collection main. In new construction, 1" drain branches are less frequently specified than 1-1/2" or 2", but remain relevant in niche fixture and equipment applications across commercial, institutional, and industrial facilities.

All socket ends accept PVC pipe via solvent cement, creating permanent, leak-free joints throughout the assembly. Manufactured to ASTM D2665 standards and listed under NSF/ANSI 14, the 475-335 is molded from white Schedule 40 PVC, appropriate for above-ground and underground DWV applications across a broad range of commercial, institutional, and industrial drain system configurations.

Specifications:

Industries & Applications:

• Commercial Plumbing & DWV Systems — Applied in 3" horizontal drain mains where a 1" fixture drain, equipment outlet, or overflow line must connect to the collection main at a code-compliant 45-degree entry angle; most commonly encountered in renovation, retrofit, and service work on existing commercial buildings where 1" drain rough-ins remain in place
• HVAC & Mechanical Systems — Used in condensate drain collection systems where 1" HVAC unit drain lines, fan coil unit outlets, or equipment condensate connections must consolidate into a 3" main condensate or floor drain run; the 45-degree wye entry minimizes backflow risk and supports reliable gravity drainage without the flow disruption of a perpendicular tee connection
• Food & Beverage Processing — Applied in facility drain systems where small-diameter equipment waste lines — ice maker overflow drains, beverage equipment condensate outlets, and single-fixture drain branches — must enter a 3" main drain run with minimal turbulence and hygienic, self-clearing flow characteristics at the branch junction
• Industrial Process Drainage — Used in plant floor drain networks and equipment drain collection systems where 1" machinery overflow lines, instrument drain connections, or small-capacity process equipment outlets must enter a 3" gravity drain main at a low-turbulence angle without disrupting the primary drain flow
• Healthcare & Institutional Facilities — Installed in sanitary drain systems in hospitals, clinics, laboratories, and institutional buildings where 1" equipment drain connections, eyewash station outlets, or emergency overflow drains must tie into 3" collection mains at a plumbing code-compliant branch angle
• Renovation & Retrofit Construction — The most practically significant application context for this SKU; particularly well-suited for drain system upgrades, building renovations, and service calls where existing 1" drain rough-ins must be connected to new or upsized 3" main drain runs without full repiping of the branch connections