ISO 15886-2:2021

Overview

ISO 15886-2:2021 - Agricultural irrigation equipment - Sprinklers - Part 2: Design and operation requirements defines the design, performance and test-method requirements for rotating irrigation sprinklers intended for installation on pipe laterals and operation with irrigation water. The document covers materials, manufacture, connections, performance limits and a suite of strength, operating and durability tests. It uses the term “sprinkler” broadly (see ISO 15886‑1 for classification) and includes an informative Annex A on drop size testing.

Key topics and technical requirements

• Materials: Metal sprinklers typically in copper alloy or materials with equivalent corrosion/mechanical properties; plastics parts in contact with water and sunlight must be opaque with UV stabilizers.
• Manufacture & installation: No detrimental manufacturing defects; removable parts and nozzles must be easily replaceable and interchangeable; specific tools supplied by manufacturer when required.
• Connections: Threaded connections for risers and nozzles to comply with ISO 7‑1 (or supplied adaptors); on‑line/flexible tube connections must be specified by the manufacturer.
• Performance: Sprinklers must rotate continuously and uniformly across their declared range of working pressure (Pmin to Pmax). Actuating mechanisms must operate with riser deviations up to 10°.
• Test conditions & measurement accuracy: Defined accuracies for pressure (±1 %), flow (±2 %), water depth (±3 %) and other instruments, plus test-liquid and atmospheric condition guidance.
• Strength tests: Construction, threaded connection resistance, hydrostatic pressure at ambient and high temperature, and watertightness.
• Operating tests: Rotation-speed uniformity, flow-rate uniformity, distribution characteristics, radius of throw, trajectory height, flow vs inlet pressure, and working pressure range.
• Durability, marking & manufacturer data: Durability testing requirements, mandatory identification/marking and the data manufacturers must supply (operating and performance data).

Applications and users

ISO 15886-2 is essential for:

• Sprinkler manufacturers designing and certifying rotating sprinklers for irrigation systems.
• Test laboratories and certification bodies performing performance, strength and durability tests.
• Irrigation system designers and consultants specifying sprinklers for agricultural, turf and landscape irrigation.
• Procurement officers and quality managers ensuring product compatibility, interchangeability and compliance.
• Regulatory bodies and standards committees promoting safe, durable and interoperable irrigation equipment.

Using ISO 15886-2 helps ensure consistent sprinkler performance, compatibility with pipe laterals and international trade by aligning design, testing and marking practices.

Related standards

• ISO 15886-1: Definition of terms and classification (series anchor).
• ISO 15886-3: Characterization of distribution and test methods (distribution tests).
• ISO 15886-4: Test methods for durability.
• ISO 7-1: Pipe threads where pressure‑tight joints are made on the threads.