AWWA Standard C700 2015

This standard covers the various types and classes of cold-water displacement meters with metal alloy main cases, in sizes 1/2 in. (13 mm) through 2 in. (51 mm), and the materials and workmanship employed in their fabrication. The displacement meters covered, known as nutating-disc or oscillating-piston meters, are positive in action because the pistons and discs displace or carry over a fixed quantity of water for each nutation or oscillation when operated under positive pressure. The purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for cold-water meters–displacement type, metal alloy main case, including materials and design. The major revisions in this edition include the following: The scope has changed from meters with bronze main cases to those with metal alloy main cases The foreword provides lead content criteria as stipulated by NSF and the Safe Drinking Water Act New information about meters used for residential fire sprinkler applications is included in the foreword The definition of “manufacturer” has been changed to be more inclusive The section on registers has been updated

PDF Catalog