scope:

This standard describes manual, semiautomatic, and automatic field welding by the metal arc-welding processes for steel water pipe manufactured in accordance with ANSI*/AWWA C200, Standard for Steel Water Pipe-6 In. (150 mm) and Larger. This standard describes field-performed, full circumferential welding of three types of pipe joints: (1) lap joints; (2) butt joints; and (3) butt-strap joints. This standard also applies to other welding required in field fabrication and installation of specials and appurtenances. However, when possible, fabrications should be performed by the manufacturer at a manufacturing facility. The design of field welded joints is not covered within this standard.

This standard recognizes AWS† D1.1 as the supporting document.

Welding of gasketed joints may require modification to the parameters of this welding standard.

Purpose

The purpose of this standard is to provide minimum requirements for field welding and inspection of steel water pipe, including requirements and inspection.

* American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036.

† American Welding Society, 550 N.W. LeJuene Road, Miami, FL 33126.