标准摘要
[中文适用范围]： 本文件规定了用于农业灌溉系统的加压颗粒介质过滤器（以下简称为介质过滤器）的构造要求和测试方法。它适用于手动清洁介质过滤器和自动自清洁介质过滤器，可单独使用或成组使用（两个或多个单元并行工作）。本文件涵盖介质过滤器的操作和性能，以及过滤器运行所需的所有相关阀门、反冲洗机制、暗渠、歧管和其他相关配件。本文件适用于三种过滤器配置。a) 空的过滤容器（水箱）外壳。c) 过滤站，称为“过滤器电池”。b) 装有介质过滤材料的过滤容器，配有阀门、连接件、空气释放装置和/或其他配件。当连接到冲洗控制装置并由其控制时，此配置是一个完整的单个过滤单元，通常作为过滤站的一部分放置。附件 A 提供了有关灌溉介质过滤器类型的信息。附件 B 提供了有关颗粒介质的信息。 [外文原描述]： This document specifies construction requirements and test methods for pressurized granulated media filters, hereinafter referred to as media filters, intended for operation in agricultural irrigation systems. It is applicable to both manual cleaning media filters and automatic self-cleaning media filters, used as single unit or in batteries (two or more units working in parallel). This document covers the operation and performance of a media filter, together with all related valves, back flushing mechanism, underdrains, manifolds and other related accessories necessary for the operation of the filter. This document is applicable to three configurations of a filter. a) An empty filter vessel (tank) housing. b) A filter vessel filled with media filter material(s), complete with valves, connections, air release and/or other accessories. This configuration, when connected to and controlled by a flushing control device, is a complete operating single filter unit, usually positioned as a part of a filtration station. c) A filtration station, called "filter battery". Annex A provides information on types of irrigation media filters. Annex B provides information on granulated media.
英文名称Agricultural irrigation equipment — Filters for microirrigation — Part 4: Granulated media filters