4 inch PVC Sewer and Drain 90 Degree Short Turn Elbow Hub x Hub

4 inch PVC Sewer & Drain 90° Short Turn Elbow Hub x Hub – For Compact Directional Changes in Gravity Systems

The 4 inch PVC Sewer and Drain 90° Short Turn Elbow with Hub x Hub connections is manufactured for gravity-flow drainage applications, where a compact radius change in direction is required. Designed for non-pressurized systems, this fitting is commonly used in sanitary and storm sewer piping layouts that demand space-efficient routing without compromising hydraulic performance.

Fabricated from high-strength polyvinyl chloride (PVC) and conforming to ASTM D3034 standards for SDR 35 systems, this elbow offers chemical resistance and dimensional stability. The socket ends are engineered for solvent-welded joints, enabling secure, leak-resistant integration into new or existing PVC SDR piping networks.

Performance Features

• Short Radius Design – Allows for tight directional transitions in limited-space installations without significantly impacting flow velocity or system integrity.
• PVC Material Composition – Resistant to corrosion, biological degradation, and chemical attack from wastewater and soil exposure.
• Hub x Hub Configuration – Compatible with standard SDR 35 sewer pipe; designed for solvent welding using PVC primer and cement.
• Nominal Size: 4-inch
• Compliance: Meets ASTM D3034 and applicable local plumbing and environmental codes for gravity drainage systems.

Installation Guidance

Prepare pipe ends and fitting sockets by cleaning and applying approved primer and solvent cement per ASTM D2855. Ensure proper alignment during assembly to maintain pitch and flow direction. Support the fitting per local code to reduce movement during backfilling or settling. Suitable for both direct-bury and concrete encasement installations, as specified.

Typical Applications

Used in underground sewer and drain systems for wastewater conveyance, including lateral lines, building drains, and septic system tie-ins. Ideal for use in tight trench layouts, basement drainage exits, and transitions around structural obstructions.

Material Insight

SDR 35 PVC is selected for its high tensile strength-to-weight ratio and ease of installation. The short turn radius of this elbow offers space savings while maintaining flow path efficiency, especially in directional transitions where larger sweep fittings are not practical.