PARSIPPANY, N.J. - The Hydraulic Institute (HI) released ANSI/HI Pump Standards Version 2.1 on CD-ROM. The new and comprehensive CD-ROM is comprised of the complete set of 28 ANSI/HI Standards, five of which have been extensively updated since the release of Version 2.0 in 2005. Additionally, the CD-ROM includes the first edition of the Controlled Volume Metering Pumps for Nomenclature, Definitions, Application, and Operation (ANSI/HI 7.1-7.5).

Development of the Controlled Volume Metering Pumps Standard was a collaborative effort between American Lewa Inc., Grundfos Pump Corp., Iwaki America Inc., McFarland-Tritan LLC, Milton Roy Americas, Siemens US Filter/Wallace & Tiernan, and the Hydraulic Institute.

This new standard is for reciprocating positive displacement pumps that are typically used for the injection of chemical additives, proportional blending of multiple components, or metered transfer of a single liquid. These types of metering pumps are used in applications that require highly accurate, repeatable, and adjustable rate of flow. Controlled-volume metering (CVM) pumps are characterized by their ability to meet specific performance requirements regarding steady state accuracy, repeatability, and linearity. Topics in this standard include the types and nomenclature pertinent to CVM pumps, an explanation of the definitions used in describing the performance and characteristics of CVM pumps, a discussion of how CVM pumps are selected and where they are applied, and a section on the proper installation, operation, and maintenance of CVM pumps that will ensure trouble-free operation.

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Publication date:06/15/2009