3 inch PVC DWV 90 Degree Side Inlet Elbow Plastic x Plastic

3 Inch PVC DWV 90° Side Inlet Elbow – Hub x Hub x Side Inlet, ASTM D2665

The 3 inch PVC DWV 90-degree side inlet elbow is designed for non-pressurized drain, waste, and vent (DWV) applications. It features two hub (socket) inlets at a 90-degree configuration and an additional side inlet at a 90-degree angle to the sweep. This fitting allows for efficient joining of three DWV branches in horizontal piping systems, commonly used in back-to-back fixture configurations.

Material and Standards Compliance

Manufactured from Type I Grade I polyvinyl chloride (PVC) in accordance with ASTM D2665 and D3311, this fitting is designed for use in DWV systems. It is compatible with Schedule 40 DWV piping and is typically installed in gravity flow systems for residential and light commercial use. Certification to NSF/ANSI 14 and UPC-listed ensures suitability for plumbing code-compliant installations.

• ✅ Material: PVC Type I, Cell Classification 12454 per ASTM D1784
• ✅ Connection Type: Hub x Hub x Side Inlet (all socket ends)
• ✅ Fitting Type: 90° Elbow with 90° side inlet
• ✅ Standards: ASTM D2665, ASTM D3311, CSA B181.2, NSF 14

Installation Considerations

This fitting is intended for use in solvent-welded systems. All joining surfaces must be cleaned, primed, and solvent cemented in accordance with ASTM D2855. The orientation of the side inlet must be confirmed prior to solvent weld, as adjustments cannot be made after curing. Not for use in pressurized systems or for air testing. Use only in gravity drainage or vent applications with proper support spacing and slope per IPC or UPC guidelines.

Typical Applications

Commonly used in horizontal drainage systems where a third branch connection is required, such as lavatory tie-ins or fixture group venting. It is especially useful in compact installations where directional changes and additional inlets must be combined within a single fitting to reduce pipe congestion and meet fixture rough-in requirements.

System Design Note

Fittings with side inlets must be installed with consideration of flow direction to maintain venting integrity and avoid cross-flow in back-to-back fixture layouts. Check local codes for side inlet usage in fixture drain connections and wet vented systems.