This article offers the design engineer and the contractor a few general guidelines.

Straight alignment is a key criterion for a successful design and installation. The second criterion is to have firm support for the fittings and the lateral.

One page review of proper saddle tapping and some lessons based on more than 30 years of experience.

SPANISH TRANSLATION of UNI-PUB-08: PVC Pressure Pipe Tapping Guide

Newly revised tapping guide for PVC pipe includes sections on: (1) Introductory material that applies to all types of tapping; (2) Direct tapping — where corp stop is screwed directly into threads in pipe wall — for branch line sizes up to 1-inch; (3) Saddle tapping — where corp stop is screwed into threads in metal saddle that wraps around pipe — for branch sizes up to 2-inch; (4) Sleeve tapping — where branch line is attached via flange on sleeve that wraps around pipe — for branch lines up to size-on-size.

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.

PVC pressure fittings — guide for design and installation.