Reduced Wye, Socket PVC Schedule 40 3" x 2" (475-338)

The 3" x 2" PVC Schedule 40 Reduced Wye (Socket) provides a smooth, angled branch connection off a 3" solvent-welded drain or gravity-flow run, accepting a 2" pipe at the branch port. With the second-largest branch size in the confirmed 475-33x sub-series, the 475-338 occupies a distinct position in the group — the 2" branch carries a meaningful share of the system's total flow capacity, making this fitting as much a flow-management fitting as a simple branch connection.

The wye geometry orients the 2" branch at approximately 45 degrees to the 3" main run, allowing branch flow to merge with the primary drain stream in a gradual, low-turbulence transition. At a 3" main run and 2" branch, the hydraulic relationship between the two lines is closer than in any other SKU in the sub-series — a 2" pipe carries approximately 44% of the cross-sectional area of a 3" pipe, meaning the branch can contribute a substantial flow volume to the main run under peak demand conditions. The wye geometry is therefore not merely a code compliance preference at this size step but a meaningful hydraulic advantage over a sanitary tee, particularly in systems where both the main run and the branch approach capacity simultaneously.

This size combination — 3" main receiving a 2" branch — is one of the most practical and frequently encountered configurations in commercial DWV system design. A 2" drain branch is the standard size for a wide range of commercial fixtures and equipment connections: lavatories and sink groups, dishwashers, floor sinks, utility sinks, and equipment drain assemblies frequently terminate at 2", and 3" is among the most common horizontal collection main sizes in commercial buildings. The result is a fitting that sees broad applicability across new construction, renovation, and retrofit work in virtually every commercial building type.

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 475-338 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 — The broadest and most common application in the sub-series at this size combination; installed in 3" horizontal drain mains in commercial buildings, restaurants, hotels, schools, and healthcare facilities where 2" fixture group drains, floor sinks, utility sink drains, and equipment waste connections must enter the collection main at a code-compliant 45-degree angle; the 3" x 2" wye is among the most frequently specified reduced wye configurations in commercial DWV design
• Food & Beverage Processing — Used in facility drain systems collecting 2" equipment waste lines — commercial dishwashers, floor sinks, prep sink drain groups, and cooking equipment drain assemblies — into 3" main drain runs where the branch flow volume is substantial and the wye geometry's low-turbulence confluence supports hygienic, self-clearing drain performance at the junction
• Healthcare & Institutional Facilities — Installed in sanitary drain systems in hospitals, surgery centers, schools, and government buildings where 2" fixture group drains, soiled utility room connections, and equipment waste lines must connect to 3" collection mains at a plumbing code-compliant angle with reliable long-term solids conveyance through the junction
• Industrial Process Drainage — Applied in plant floor drain networks and equipment drain collection systems where 2" process equipment drains, washdown collection lines, and high-volume floor drain branches must enter a 3" gravity drain main; the close hydraulic relationship between the 2" branch and 3" run makes the wye geometry's low-turbulence design particularly valuable under peak simultaneous flow conditions
• Municipal & Civil Drainage — Used in gravity sewer laterals and site drainage infrastructure where a 2" secondary drain lateral or service branch must connect to a 3" collection main at a low-turbulence angle to maintain solids-carrying capacity and system performance through the junction point
• Renovation & Retrofit Construction — Widely applicable in drain system upgrades and building renovations where existing 2" fixture or equipment drain rough-ins must connect to new or upsized 3" main drain runs; the 3" x 2" size combination is common enough in legacy building stock that this fitting is a practical stocking item for commercial plumbing service contractors