ISO 9912-3:2013

Name: ISO 9912-3:2013 — Agricultural irrigation equipment — Filters for microirrigation — Part 3: Automatic flushing strainer-type filters and disc filters
SKU: ISO 9912-3:2013
Price: 25 EUR
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Agricultural irrigation equipment — Filters for microirrigation — Part 3: Automatic flushing strainer-type filters and disc filters

Название (английский):

ISO 9912-3:2013

Agricultural irrigation equipment — Filters for microirrigation — Part 3: Automatic flushing strainer-type filters and disc filters

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 19 сентября 2013 г.
Издание:: ISO IS 9912 edition 2 version 1
ICS:: 65.060.35

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Описание (английский):

ISO 9912-3:2013 specifies general construction requirements and test methods for automatic flushing strainer-type filters and disc filters intended for operation in agricultural irrigation systems. It does not cover the aspects of filtration ability, efficiency and capacity (like quality of filtered water or time of operation before filter becomes entirely clogged).

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 9912-3:2013 - "Agricultural irrigation equipment - Filters for microirrigation - Part 3" - specifies general construction requirements and standardized test methods for automatic flushing strainer-type filters and disc filters used in microirrigation systems. The standard focuses on mechanical design, marking, flushing control and performance verification (volume/time/pressure behavior) but does not cover filtration ability, efficiency or capacity (e.g., quality of filtered water or time to clogging).

Key topics and technical requirements

Scope and terminology: Definitions for automatic flushing filters, flushing cycle duration, flushing control mechanism, flushing valve, minimum working/filtering/flushing pressures, prefiltration element, protective mechanism and flushing volume.

Marking and documentation: Filters must carry required markings (per ISO 9912-2) and a calibrated permanent scale for automatic flushing settings; manufacturers must supply specified information about the filter and any third‑party control systems.

Design and construction requirements:

Flushing control system must be part of the supplied assembly or approved and documented if supplied separately.
Manual actuation of flushing must be possible even if automatic control fails.
Filter housings must allow dismantling for maintenance; prefiltration elements (if present) should be integral during tests.
Coordination of flushing control and flushing valve operation to prevent spurious discharge.
Optionally recommended features include adjustable presets, protective mechanisms to prevent repeated flushes, and use of filtered water for hydraulic accessories.

Performance tests:

Measurement of flushing volume and duration at declared pressures: measured flushing volume must not exceed the manufacturer’s declared volume by more than 7%; flushing duration must be within ±15% of declared duration.
Tests at minimum flow rates and critical pressure conditions to verify satisfactory flushing operation.
Control mechanism verification for activation by pressure differential (±10% tolerance), operation duration (±5% tolerance) or volume of filtered water.
Tests after simulated long-term use (multiple flushing cycles) to assess durability and consistent operation.

Applications and users

Practical use: ensures reliable, maintainable automatic self‑cleaning filters in drip and microirrigation systems; supports specification, procurement, factory testing and field verification.

Typical users: filter manufacturers, irrigation equipment designers, agricultural engineers, testing laboratories, certification bodies, large-scale growers and irrigation system contractors specifying compliant filters.

Related standards

ISO 9912-1: Terms, definitions and classification

ISO 9912-2: Strainer-type filters and disc filters (general requirements)

Planned Part 4: Granulated media filters

Keywords: ISO 9912-3:2013, automatic flushing filters, disc filters, microirrigation filters, flushing control mechanism, performance tests, agricultural irrigation equipment.

ISO 9912-3:2013

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

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