Non-Pressure

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DEEP BURY PVC

See the "Urban Myths Die Hard" article for use of PVC gravity sewer applications at depths of 30 feet and more. Many sewer utilities have arbitrarily set depth limits for PVC which are not based on engineering knowledge.

PVC NONPRESSURE PIPE STANDARDS FOR GRAVITY SEWER

PVC Sewer Pipe Standards are summarized on a single sheet. Both sanitary sewer and storm drainage standards are listed.

PVC VS. FIBERGLASS (FRP) GRAVITY SEWER

This comparison of PVC and fiberglass gravity sewer pipes is based on decades of flexible-pipe research and field experience. A review of the properties and capabilities of both materials shows PVC to be the better choice.

SHALLOW BURY

Photo demonstrates how flexible PVC can be used in shallow bury applications.

UNI-PUB-12: DESIGN & INSTALLATION GUIDE FOR PVC FITTINGS & LATERALS FOR SOLID WALL PVC SEWER PIPE

This document has been developed by the Uni-Bell PVC Pipe Association for design and installation of PVC fittings where solid-wall PVC pipe is used in non-pressure applications. The guide provides information on the wide range of fittings that are available for various dimension ratios and outside diameters of PVC pipe through 60-inch. Also included is information on installation practices.

UNI-TR-01: DEFLECTION: THE PIPE/SOIL MECHANISM

This Technical Report, "Deflection: The Pipe/Soil Mechanism," details design procedures for predicting long-term deflection of buried PVC pipe.

UNI-TR-08: HYDRAULIC TESTING OF PVC PIPE: LABORATORY AND FIELD TESTS CONFIRM FLOW COEFFICIENTS

Recent hydraulic research on new and in-service PVC pipe has confirmed that industry-recommended flow coefficients are conservative for design of pressure and non-pressure pipes.

UNI-TR-10: PVC PIPE IN DEEP-BURY APPLICATIONS

PVC sewer pipes in deep-burial applications: Finite-element analysis and laser-profiling of an in-service pipeline.