6 inch x 4 inch PVC SDR 35 Extended Bushing Fitting x Gasket

6 inch x 4 inch SDR35 PVC Extended Bushing with Gasketed Connection – Engineered for Gravity Sewer Applications

The 6 inch x 4 inch SDR35 PVC Extended Bushing (SPCxG) is designed for gravity-flow sewer and storm drainage systems where dimensional accuracy and material strength are critical. This fitting reduces from 6 inch to 4 inch and incorporates a spigot-to-gasketed bell transition, making it ideal for installations requiring space optimization and watertight performance.

Manufactured in compliance with ASTM D3034 and ASTM F1336 standards, the bushing supports SDR35-rated piping systems and is compatible with gasketed PVC components. It is typically used to reduce line size while maintaining flow efficiency in both new construction and system upgrades.

Performance Features

• ✅ Engineered for SDR35 Systems – Meets structural wall thickness requirements for non-pressurized sewer systems.
• ✅ Extended Body – Allows for easier handling and cleaner joint alignment during installation.
• ✅ Gasketed Seal – Compatible with flexible elastomeric seals per ASTM F477 for watertight performance without solvent welding.
• ✅ Corrosion-Resistant PVC – Provides long-term durability in below-grade applications with minimal maintenance.
• ✅ Precision-Molded – Tight tolerances ensure proper fit and alignment in field conditions.

Technical Specifications

• Nominal Size: 6 inch x 4 inch
• Material: Polyvinyl Chloride (PVC)
• Wall Rating: SDR35 (Standard Dimension Ratio)
• End Connections: Spigot x Gasketed Bell
• Standards: ASTM D3034, ASTM F1336, ASTM F477
• Intended Use: Non-pressure underground sewer and drainage piping

Installation Considerations

For optimal performance, ensure proper insertion depth and uniform gasket compression during installation. Use approved pipe lubricant on spigot ends to prevent displacement of the gasket. Field trimming should follow local code requirements and manufacturer guidelines.

Typical Applications

This reducer bushing is commonly installed in sanitary sewer systems, storm drainage networks, and detention systems where line size transitions are needed. It can be used in manhole tie-ins, lateral reductions, and gravity flow junctions where watertight integrity is essential.

Code Note

All SDR35 fittings and pipe must be installed according to local plumbing and civil engineering specifications. Proper bedding and backfill procedures are essential to avoid deflection and ensure long-term reliability.

The 6 inch x 4 inch SDR35 Extended PVC Bushing offers field-proven performance in municipal, commercial, and residential underground systems. Engineered for ease of installation and designed for lasting service life, this component supports code-compliant infrastructure you can rely on.