6 inch x 4 inch PVC Sewer and Drain Reducing Bushing Fitting x Hub

6” x 4” PVC Sewer and Drain Reducing Bushing – Precision Fit for Pipe Transitions

The 6” x 4” PVC Reducing Bushing is designed to provide a secure and efficient transition between 6-inch and 4-inch sewer or drain lines. Manufactured from high-strength polyvinyl chloride, this fitting is engineered for gravity-flow drainage systems and is commonly specified in underground or non-pressurized sanitary sewer applications.

Key Performance Features

• ✅ Injection-Molded PVC – Delivers excellent dimensional stability and long-term resistance to cracking or degradation under standard field conditions.
• ✅ Slip Fit Compatibility – Designed for solvent-weld joint connections using standard SDR-35 or ASTM D3034 sewer pipe systems.
• ✅ Corrosion and Chemical Resistant – Withstands exposure to wastewater environments without metal components that corrode or scale.
• ✅ Code Compliant – Conforms to industry standards including ASTM D2466 and is suitable for use in DWV and stormwater management systems.

Specifications

• Nominal Sizes: 6” Spigot x 4” Hub
• Material: Rigid PVC (typically cell classification 12454 per ASTM D1784)
• Color: Gray or white depending on supplier standard
• Connection Type: Spigot x Hub, solvent weld
• Application: Non-pressurized sewer, storm, and drainage piping systems

Installation Guidelines

Install using PVC solvent cement and primer approved for Schedule 40 or SDR sewer fittings. Ensure mating surfaces are clean and dry prior to application. Insert the spigot end fully into the receiving hub to achieve full insertion depth as per manufacturer’s tolerance guidelines. Allow appropriate cure time per cement manufacturer’s specifications before placing the system into service.

Typical Applications

This reducing bushing is commonly utilized at main-to-branch transitions in sanitary sewer laterals, cleanout assemblies, or at manhole-to-line junctions. It is also suitable for repairs or retrofits where downsizing is required without compromising flow velocity or pipe alignment.

Note:

Always verify that pipe schedules and fittings are compatible, particularly when combining SDR-rated and Schedule 40 systems. Not for use in pressurized systems.

The 6” x 4” PVC Sewer and Drain Reducing Bushing provides the reliability and dimensional accuracy contractors depend on for long-lasting performance in drainage infrastructure. Designed to meet jobsite demands and code requirements, this fitting is an essential component for any sewer installation or repair project.