90.93 Standard confirmed Dec 6, 2023
ISO
ISO/TC 23/SC 18 Irrigation and drainage equipment and systems
International Standard
65.060.35 Irrigation and drainage equipment
This document applies to manually-activated valves only.
This document specifies a test method for determining the pressure loss in agricultural irrigation valves under steady-state conditions when water flows through them. The scope and accuracy of the valve performance specifications presented will assist agricultural irrigation system designers in comparing pressure losses through various types of valves.
The measurement of pressure losses provides a means for determining the relationship between pressure loss and flow rate through the valve.
This document also describes the method of reporting pertinent test data.
No attempt is made to define product use, design or applications.
The test method is suitable for valves with equal inlet and outlet nominal sizes.
WITHDRAWN
ISO 9644:2008
PUBLISHED
ISO 9644:2018
90.93
Standard confirmed
Dec 6, 2023