What is ISO 11738 - Irrigation control heads about?
ISO 11738 covers irrigation control heads. It specifies requirements for the components and method of installation of pressurized irrigation system control heads. The irrigation control heads with a nominal size of up to and including 200 mm have been addressed here.
ISO 11738 is applicable only to the above-ground components of irrigation control heads for sprinkler irrigation and micro-irrigation (mini-sprinklers, drip irrigation, etc.). It is applicable to the basic irrigation control head, on which other irrigation control and command components (electrical, electronic, and hydraulic) can be assembled.
Note 1: ISO 11738 is not applicable to systems and/or components that can be required to prevent the water from freezing in the irrigation control head, such as dry-barrel hydrants or other types of hydrants.
Note 2: ISO 11738 does not specify construction or operating requirements for the individual components that make up the irrigation control head. These requirements are specified in the relevant standards for each component.
Who is ISO 11738 - Irrigation control heads for?
ISO 11738 on irrigation control heads is useful for:
- Irrigation Equipment Manufacturers
- Dealers and suppliers of Irrigation Equipment
- Product design engineers
- Personnel responsible for installing irrigation systems on location
- Quality control personnel
Why should you use ISO 11738 - Irrigation control heads?
Irrigation systems are useful for agriculture, hydroponic setups, to maintain landscapes, and revegetate disturbed soils in dry areas or during periods of less rainfall. In addition to the classification of irrigation control heads, ISO 11738 discusses materials. Detailed guidelines for the installation of components are provided in ISO 11738.
In situ test methods have been provided to test the operation of the irrigation system on location. Guidance on marking has also been provided in ISO 11738. ISO 11738 guidelines help you to instal irrigation control heads and test their working with the irrigation system on location.
What’s changed since the last update?
BS ISO 11738:2021 supersedes ISO 11738:2000, which is withdrawn. The main changes compared to the previous edition are as follows:
- New types of control heads and components of control heads were included, for example, irrigation control head for filtration with two or more media filters
- Symbols used in this edition were changed or revised to conform to ISO 15081:2011