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NBN ISO 9644:2021
Agricultural irrigation equipment — Pressure losses in irrigation valves — Test method
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Summary
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.
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.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 06/07/2021 |
| Page Count | 26 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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07/06/2021
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